| 2023-03-03 17:25:00March 3, 2023 | Penrith Panthers — North Sydney Bears | 18 - 12 | Knock On Effect NSW Cup | BlueBet Stadium | 1 |
| 2023-03-04 12:00:00March 4, 2023 | Parramatta Eels — Canberra Raiders | 10 - 16 | Knock On Effect NSW Cup | Kellyville Park | 1 |
| 2023-03-04 12:40:00March 4, 2023 | Blacktown Sea Eagles — Canterbury-Bankstown Bulldogs | 16 - 20 | Knock On Effect NSW Cup | 4 Pines Park | 1 |
| 2023-03-04 14:00:00March 4, 2023 | New Zealand Warriors — Newcastle Knights | 42 - 20 | Knock On Effect NSW Cup | Navigation Home Stadium | 1 |
| 2023-03-04 15:00:00March 4, 2023 | Newtown Jets — South Sydney Rabbitohs | 26 - 6 | Knock On Effect NSW Cup | Henson Park | 1 |
| 2023-03-05 15:55:00March 5, 2023 | Wests Magpies — Sydney Roosters | 44 - 18 | Knock On Effect NSW Cup | Leichhardt Oval | 1 |
| 2023-03-09 17:20:00March 9, 2023 | Penrith Panthers — South Sydney Rabbitohs | 30 - 20 | Knock On Effect NSW Cup | BlueBet Stadium | 2 |
| 2023-03-10 15:30:00March 10, 2023 | Parramatta Eels — Newtown Jets | 12 - 42 | Knock On Effect NSW Cup | CommBank Stadium | 2 |
| 2023-03-11 12:40:00March 11, 2023 | Sydney Roosters — New Zealand Warriors | 18 - 30 | Knock On Effect NSW Cup | Allianz Stadium | 2 |
| 2023-03-12 13:35:00March 12, 2023 | Wests Magpies — Newcastle Knights | 31 - 18 | Knock On Effect NSW Cup | Leichhardt Oval | 2 |
| 2023-03-12 15:45:00March 12, 2023 | Canberra Raiders — North Sydney Bears | 18 - 24 | Knock On Effect NSW Cup | Belconnen Oval | 2 |
| 2023-03-12 15:55:00March 12, 2023 | St George-Illawarra Dragons — Canterbury-Bankstown Bulldogs | 4 - 34 | Knock On Effect NSW Cup | Netstrata Jubilee Stadium | 2 |
| 2023-03-18 12:40:00March 18, 2023 | Blacktown Sea Eagles — Parramatta Eels | 22 - 30 | Knock On Effect NSW Cup | HE Laybutt | 3 |
| 2023-03-18 14:00:00March 18, 2023 | St George-Illawarra Dragons — Newcastle Knights | 10 - 30 | Knock On Effect NSW Cup | Ron Costello Oval | 3 |
| 2023-03-19 13:00:00March 19, 2023 | New Zealand Warriors — North Sydney Bears | 12 - 20 | Knock On Effect NSW Cup | Trusts Arena | 3 |
| 2023-03-19 13:40:00March 19, 2023 | Canterbury-Bankstown Bulldogs — Wests Magpies | 44 - 12 | Knock On Effect NSW Cup | Belmore Sports Ground | 3 |
| 2023-03-19 15:15:00March 19, 2023 | Sydney Roosters — South Sydney Rabbitohs | 38 - 16 | Knock On Effect NSW Cup | Wentworth Park | 3 |
| 2023-03-19 16:00:00March 19, 2023 | Canberra Raiders — Newtown Jets | 28 - 20 | Knock On Effect NSW Cup | GIO Stadium | 3 |
| 2023-03-23 17:20:00March 23, 2023 | Parramatta Eels — Penrith Panthers | 22 - 16 | Knock On Effect NSW Cup | CommBank Stadium | 4 |
| 2023-03-25 14:00:00March 25, 2023 | Wests Magpies — North Sydney Bears | 26 - 36 | Knock On Effect NSW Cup | Lidcombe Oval | 4 |
| 2023-03-25 15:05:00March 25, 2023 | South Sydney Rabbitohs — Blacktown Sea Eagles | 26 - 12 | Knock On Effect NSW Cup | Accor Stadium | 4 |
| 2023-03-26 13:30:00March 26, 2023 | New Zealand Warriors — Canterbury-Bankstown Bulldogs | 30 - 18 | Knock On Effect NSW Cup | Go Media Stadium | 4 |
| 2023-03-26 13:35:00March 26, 2023 | Newcastle Knights — Canberra Raiders | 18 - 20 | Knock On Effect NSW Cup | McDonald Jones Stadium | 4 |
| 2023-03-26 15:55:00March 26, 2023 | St George-Illawarra Dragons — Newtown Jets | 16 - 30 | Knock On Effect NSW Cup | Netstrata Jubilee Stadium | 4 |
| 2023-04-01 13:00:00April 1, 2023 | Penrith Panthers — Canberra Raiders | 24 - 16 | Knock On Effect NSW Cup | BlueBet Stadium | 5 |
| 2023-04-01 15:00:00April 1, 2023 | Newtown Jets — Canterbury-Bankstown Bulldogs | 6 - 16 | Knock On Effect NSW Cup | Henson Park | 5 |
| 2023-04-01 15:10:00April 1, 2023 | St George-Illawarra Dragons — Parramatta Eels | 26 - 26 | Knock On Effect NSW Cup | WIN Stadium | 5 |
| 2023-04-02 13:00:00April 2, 2023 | Wests Magpies — New Zealand Warriors | 22 - 10 | Knock On Effect NSW Cup | Lidcombe Oval | 5 |
| 2023-04-02 15:00:00April 2, 2023 | Blacktown Sea Eagles — Newcastle Knights | 36 - 6 | Knock On Effect NSW Cup | HE Laybutt | 5 |
| 2023-04-02 15:15:00April 2, 2023 | Sydney Roosters — North Sydney Bears | 14 - 24 | Knock On Effect NSW Cup | Hills Grammar | 5 |
| 2023-04-07 13:40:00April 7, 2023 | Canterbury-Bankstown Bulldogs — South Sydney Rabbitohs | 26 - 22 | Knock On Effect NSW Cup | Accor Stadium | 6 |
| 2023-04-07 14:45:00April 7, 2023 | Canberra Raiders — Sydney Roosters | 0 - 26 | Knock On Effect NSW Cup | Belconnen Oval | 6 |
| 2023-04-08 13:45:00April 8, 2023 | St George-Illawarra Dragons — North Sydney Bears | 26 - 12 | Knock On Effect NSW Cup | Collegians Sporting Complex | 6 |
| 2023-04-08 15:05:00April 8, 2023 | Penrith Panthers — Blacktown Sea Eagles | 24 - 26 | Knock On Effect NSW Cup | BlueBet Stadium | 6 |
| 2023-04-09 15:45:00April 9, 2023 | Newcastle Knights — New Zealand Warriors | 14 - 54 | Knock On Effect NSW Cup | McDonald Jones Stadium | 6 |
| 2023-04-10 13:40:00April 10, 2023 | Wests Magpies — Parramatta Eels | 8 - 10 | Knock On Effect NSW Cup | Accor Stadium | 6 |
| 2023-04-15 15:00:00April 15, 2023 | Newcastle Knights — Penrith Panthers | 16 - 48 | Knock On Effect NSW Cup | McDonald Jones Stadium | 7 |
| 2023-04-15 15:00:00April 15, 2023 | Newtown Jets — Sydney Roosters | 40 - 18 | Knock On Effect NSW Cup | Henson Park | 7 |
| 2023-04-16 11:30:00April 16, 2023 | Canberra Raiders — St George-Illawarra Dragons | 20 - 18 | Knock On Effect NSW Cup | GIO Stadium | 7 |
| 2023-04-16 13:30:00April 16, 2023 | Parramatta Eels — Canterbury-Bankstown Bulldogs | 6 - 28 | Knock On Effect NSW Cup | CommBank Stadium | 7 |
| 2023-04-16 14:00:00April 16, 2023 | North Sydney Bears — South Sydney Rabbitohs | 40 - 14 | Knock On Effect NSW Cup | North Sydney Oval | 7 |
| 2023-04-16 15:00:00April 16, 2023 | Blacktown Sea Eagles — New Zealand Warriors | 30 - 40 | Knock On Effect NSW Cup | HE Laybutt | 7 |
| 2023-04-20 17:25:00April 20, 2023 | South Sydney Rabbitohs — Penrith Panthers | 18 - 16 | Knock On Effect NSW Cup | Accor Stadium | 8 |
| 2023-04-22 15:05:00April 22, 2023 | Canterbury-Bankstown Bulldogs — Newtown Jets | 10 - 28 | Knock On Effect NSW Cup | Accor Stadium | 8 |
| 2023-04-23 12:00:00April 23, 2023 | New Zealand Warriors — Parramatta Eels | 48 - 4 | Knock On Effect NSW Cup | North Harbour Stadium | 8 |
| 2023-04-23 13:35:00April 23, 2023 | Wests Magpies — Blacktown Sea Eagles | 24 - 16 | Knock On Effect NSW Cup | Campbelltown Stadium | 8 |
| 2023-04-23 15:00:00April 23, 2023 | North Sydney Bears — Newcastle Knights | 32 - 6 | Knock On Effect NSW Cup | North Sydney Oval | 8 |
| 2023-04-23 15:15:00April 23, 2023 | Sydney Roosters — St George-Illawarra Dragons | 18 - 30 | Knock On Effect NSW Cup | Wentworth Park | 8 |
| 2023-04-29 12:40:00April 29, 2023 | Canberra Raiders — South Sydney Rabbitohs | 22 - 16 | Knock On Effect NSW Cup | McDonalds Stadium, Wagga | 9 |
| 2023-04-29 13:00:00April 29, 2023 | Parramatta Eels — Newcastle Knights | 44 - 10 | Knock On Effect NSW Cup | Kellyville Park | 9 |
| 2023-04-29 15:00:00April 29, 2023 | Newtown Jets — North Sydney Bears | 28 - 29 | Knock On Effect NSW Cup | Henson Park | 9 |
| 2023-04-29 17:05:00April 29, 2023 | Penrith Panthers — Wests Magpies | 8 - 28 | Knock On Effect NSW Cup | Carrington Park | 9 |
| 2023-04-30 13:30:00April 30, 2023 | New Zealand Warriors — Sydney Roosters | 36 - 22 | Knock On Effect NSW Cup | Go Media Stadium | 9 |
| 2023-04-30 13:45:00April 30, 2023 | Canterbury-Bankstown Bulldogs — St George-Illawarra Dragons | 22 - 12 | Knock On Effect NSW Cup | WIN Stadium | 9 |
| 2023-05-06 11:00:00May 6, 2023 | South Sydney Rabbitohs — Sydney Roosters | 28 - 26 | Knock On Effect NSW Cup | North Sydney Oval | 10 |
| 2023-05-06 13:00:00May 6, 2023 | North Sydney Bears — New Zealand Warriors | 30 - 12 | Knock On Effect NSW Cup | North Sydney Oval | 10 |
| 2023-05-06 15:00:00May 6, 2023 | Parramatta Eels — Wests Magpies | 32 - 30 | Knock On Effect NSW Cup | North Sydney Oval | 10 |
| 2023-05-07 11:00:00May 7, 2023 | Newtown Jets — Penrith Panthers | 29 - 16 | Knock On Effect NSW Cup | HE Laybutt | 10 |
| 2023-05-07 13:00:00May 7, 2023 | Canterbury-Bankstown Bulldogs — Canberra Raiders | 14 - 14 | Knock On Effect NSW Cup | HE Laybutt | 10 |
| 2023-05-07 15:00:00May 7, 2023 | Blacktown Sea Eagles — St George-Illawarra Dragons | 34 - 26 | Knock On Effect NSW Cup | HE Laybutt | 10 |
| 2023-05-12 17:30:00May 12, 2023 | Penrith Panthers — Sydney Roosters | 16 - 14 | Knock On Effect NSW Cup | BlueBet Stadium | 11 |
| 2023-05-13 12:00:00May 13, 2023 | Canterbury-Bankstown Bulldogs — New Zealand Warriors | 14 - 14 | Knock On Effect NSW Cup | Belmore Sports Ground | 11 |
| 2023-05-13 12:40:00May 13, 2023 | South Sydney Rabbitohs — Wests Magpies | 26 - 22 | Knock On Effect NSW Cup | Accor Stadium | 11 |
| 2023-05-13 17:20:00May 13, 2023 | Canberra Raiders — Parramatta Eels | 40 - 12 | Knock On Effect NSW Cup | GIO Stadium | 11 |
| 2023-05-14 11:30:00May 14, 2023 | Newcastle Knights — St George-Illawarra Dragons | 22 - 26 | Knock On Effect NSW Cup | McDonald Jones Stadium | 11 |
| 2023-05-14 13:35:00May 14, 2023 | Blacktown Sea Eagles — Newtown Jets | 22 - 22 | Knock On Effect NSW Cup | 4 Pines Park | 11 |
| 2023-05-19 17:15:00May 19, 2023 | South Sydney Rabbitohs — Parramatta Eels | 16 - 26 | Knock On Effect NSW Cup | Allianz Stadium | 12 |
| 2023-05-20 12:40:00May 20, 2023 | Wests Magpies — Penrith Panthers | 10 - 40 | Knock On Effect NSW Cup | Leichhardt Oval | 12 |
| 2023-05-20 15:00:00May 20, 2023 | Newtown Jets — Newcastle Knights | 40 - 12 | Knock On Effect NSW Cup | Henson Park | 12 |
| 2023-05-21 13:00:00May 21, 2023 | St George-Illawarra Dragons — Sydney Roosters | 42 - 22 | Knock On Effect NSW Cup | Collegians Sporting Complex | 12 |
| 2023-05-21 13:50:00May 21, 2023 | Canberra Raiders — Blacktown Sea Eagles | 12 - 19 | Knock On Effect NSW Cup | GIO Stadium | 12 |
| 2023-05-21 14:00:00May 21, 2023 | North Sydney Bears — Canterbury-Bankstown Bulldogs | 24 - 22 | Knock On Effect NSW Cup | North Sydney Oval | 12 |
| 2023-05-26 17:40:00May 26, 2023 | Parramatta Eels — North Sydney Bears | 26 - 8 | Knock On Effect NSW Cup | CommBank Stadium | 13 |
| 2023-05-27 17:10:00May 27, 2023 | South Sydney Rabbitohs — Canberra Raiders | 26 - 20 | Knock On Effect NSW Cup | Accor Stadium | 13 |
| 2023-05-28 13:00:00May 28, 2023 | St George-Illawarra Dragons — Wests Magpies | 40 - 20 | Knock On Effect NSW Cup | Sid Parrish Park | 13 |
| 2023-05-28 13:30:00May 28, 2023 | New Zealand Warriors — Penrith Panthers | 14 - 24 | Knock On Effect NSW Cup | Go Media Stadium | 13 |
| 2023-05-28 13:35:00May 28, 2023 | Newcastle Knights — Blacktown Sea Eagles | 26 - 20 | Knock On Effect NSW Cup | McDonald Jones Stadium | 13 |
| 2023-05-28 15:15:00May 28, 2023 | Sydney Roosters — Newtown Jets | 24 - 23 | Knock On Effect NSW Cup | Wentworth Park | 13 |
| 2023-06-03 12:40:00June 3, 2023 | North Sydney Bears — Blacktown Sea Eagles | 30 - 36 | Knock On Effect NSW Cup | North Sydney Oval | 14 |
| 2023-06-03 13:00:00June 3, 2023 | South Sydney Rabbitohs — New Zealand Warriors | 24 - 22 | Knock On Effect NSW Cup | Redfern Oval | 14 |
| 2023-06-03 14:00:00June 3, 2023 | Newcastle Knights — Parramatta Eels | 35 - 16 | Knock On Effect NSW Cup | Cessnock Sports Ground | 14 |
| 2023-06-03 14:00:00June 3, 2023 | Wests Magpies — Canberra Raiders | 26 - 18 | Knock On Effect NSW Cup | Lidcombe Oval | 14 |
| 2023-06-04 11:30:00June 4, 2023 | Sydney Roosters — Canterbury-Bankstown Bulldogs | 6 - 20 | Knock On Effect NSW Cup | Industree Group Stadium | 14 |
| 2023-06-04 15:45:00June 4, 2023 | Penrith Panthers — St George-Illawarra Dragons | 30 - 10 | Knock On Effect NSW Cup | BlueBet Stadium | 14 |
| 2023-06-10 12:40:00June 10, 2023 | St George-Illawarra Dragons — South Sydney Rabbitohs | 22 - 30 | Knock On Effect NSW Cup | Netstrata Jubilee Stadium | 15 |
| 2023-06-10 14:00:00June 10, 2023 | Canberra Raiders — New Zealand Warriors | 16 - 34 | Knock On Effect NSW Cup | Belconnen Oval | 15 |
| 2023-06-11 15:00:00June 11, 2023 | Blacktown Sea Eagles — Wests Magpies | 16 - 16 | Knock On Effect NSW Cup | HE Laybutt | 15 |
| 2023-06-11 15:00:00June 11, 2023 | North Sydney Bears — Newtown Jets | 20 - 36 | Knock On Effect NSW Cup | North Sydney Oval | 15 |
| 2023-06-11 15:15:00June 11, 2023 | Sydney Roosters — Penrith Panthers | 22 - 24 | Knock On Effect NSW Cup | Wentworth Park | 15 |
| 2023-06-12 13:40:00June 12, 2023 | Canterbury-Bankstown Bulldogs — Parramatta Eels | 64 - 12 | Knock On Effect NSW Cup | Accor Stadium | 15 |
| 2023-06-17 12:40:00June 17, 2023 | Newcastle Knights — Sydney Roosters | 12 - 36 | Knock On Effect NSW Cup | McDonald Jones Stadium | 16 |
| 2023-06-17 13:00:00June 17, 2023 | Newtown Jets — New Zealand Warriors | 24 - 16 | Knock On Effect NSW Cup | Henson Park | 16 |
| 2023-06-17 14:00:00June 17, 2023 | Canterbury-Bankstown Bulldogs — Penrith Panthers | 30 - 16 | Knock On Effect NSW Cup | Belmore Sports Ground | 16 |
| 2023-06-17 15:00:00June 17, 2023 | Parramatta Eels — Blacktown Sea Eagles | 10 - 46 | Knock On Effect NSW Cup | CommBank Stadium | 16 |
| 2023-06-18 14:00:00June 18, 2023 | Wests Magpies — St George-Illawarra Dragons | 4 - 46 | Knock On Effect NSW Cup | Lidcombe Oval | 16 |
| 2023-06-18 15:00:00June 18, 2023 | South Sydney Rabbitohs — North Sydney Bears | 24 - 16 | Knock On Effect NSW Cup | Coogee Oval | 16 |
| 2023-06-24 12:00:00June 24, 2023 | New Zealand Warriors — St George-Illawarra Dragons | 16 - 18 | Knock On Effect NSW Cup | Go Media Stadium | 17 |
| 2023-06-24 12:40:00June 24, 2023 | Penrith Panthers — Newcastle Knights | 18 - 19 | Knock On Effect NSW Cup | BlueBet Stadium | 17 |
| 2023-06-24 14:00:00June 24, 2023 | Wests Magpies — Canterbury-Bankstown Bulldogs | 15 - 15 | Knock On Effect NSW Cup | Lidcombe Oval | 17 |
| 2023-06-24 15:00:00June 24, 2023 | Newtown Jets — Parramatta Eels | 40 - 22 | Knock On Effect NSW Cup | Henson Park | 17 |
| 2023-06-25 15:00:00June 25, 2023 | Blacktown Sea Eagles — South Sydney Rabbitohs | 16 - 30 | Knock On Effect NSW Cup | HE Laybutt | 17 |
| 2023-06-25 15:00:00June 25, 2023 | Sydney Roosters — Canberra Raiders | 22 - 30 | Knock On Effect NSW Cup | Wentworth Park | 17 |
| 2023-06-30 17:30:00June 30, 2023 | New Zealand Warriors — South Sydney Rabbitohs | 21 - 18 | Knock On Effect NSW Cup | Go Media Stadium | 18 |
| 2023-07-01 12:40:00July 1, 2023 | Canberra Raiders — Penrith Panthers | 22 - 18 | Knock On Effect NSW Cup | GIO Stadium | 18 |
| 2023-07-01 15:00:00July 1, 2023 | Newtown Jets — St George-Illawarra Dragons | 12 - 46 | Knock On Effect NSW Cup | Henson Park | 18 |
| 2023-07-02 11:30:00July 2, 2023 | Canterbury-Bankstown Bulldogs — Newcastle Knights | 12 - 38 | Knock On Effect NSW Cup | Accor Stadium | 18 |
| 2023-07-02 13:35:00July 2, 2023 | Blacktown Sea Eagles — Sydney Roosters | 48 - 6 | Knock On Effect NSW Cup | 4 Pines Park | 18 |
| 2023-07-02 14:00:00July 2, 2023 | North Sydney Bears — Wests Magpies | 46 - 18 | Knock On Effect NSW Cup | North Sydney Oval | 18 |
| 2023-07-07 17:45:00July 7, 2023 | St George-Illawarra Dragons — Canberra Raiders | 20 - 24 | Knock On Effect NSW Cup | WIN Stadium | 19 |
| 2023-07-08 15:00:00July 8, 2023 | Newtown Jets — Wests Magpies | 22 - 24 | Knock On Effect NSW Cup | Henson Park | 19 |
| 2023-07-08 15:05:00July 8, 2023 | Parramatta Eels — New Zealand Warriors | 14 - 36 | Knock On Effect NSW Cup | CommBank Stadium | 19 |
| 2023-07-08 17:10:00July 8, 2023 | South Sydney Rabbitohs — Canterbury-Bankstown Bulldogs | 16 - 44 | Knock On Effect NSW Cup | Accor Stadium | 19 |
| 2023-07-09 14:00:00July 9, 2023 | Sydney Roosters — Newcastle Knights | 28 - 46 | Knock On Effect NSW Cup | Wentworth Park | 19 |
| 2023-07-09 15:00:00July 9, 2023 | Blacktown Sea Eagles — North Sydney Bears | 16 - 30 | Knock On Effect NSW Cup | HE Laybutt | 19 |
| 2023-07-14 17:30:00July 14, 2023 | Newcastle Knights — Wests Magpies | 46 - 10 | Knock On Effect NSW Cup | McDonald Jones Stadium | 20 |
| 2023-07-15 12:40:00July 15, 2023 | Canterbury-Bankstown Bulldogs — North Sydney Bears | 6 - 30 | Knock On Effect NSW Cup | Belmore Sports Ground | 20 |
| 2023-07-15 13:00:00July 15, 2023 | St George-Illawarra Dragons — Penrith Panthers | 36 - 16 | Knock On Effect NSW Cup | Collegians Sporting Complex | 20 |
| 2023-07-16 13:30:00July 16, 2023 | New Zealand Warriors — Newtown Jets | 18 - 26 | Knock On Effect NSW Cup | Go Media Stadium | 20 |
| 2023-07-16 15:00:00July 16, 2023 | Blacktown Sea Eagles — Canberra Raiders | 24 - 18 | Knock On Effect NSW Cup | HE Laybutt | 20 |
| 2023-07-16 15:45:00July 16, 2023 | Parramatta Eels — South Sydney Rabbitohs | 10 - 30 | Knock On Effect NSW Cup | CommBank Stadium | 20 |
| 2023-07-21 17:30:00July 21, 2023 | New Zealand Warriors — Canberra Raiders | 21 - 20 | Knock On Effect NSW Cup | Go Media Stadium | 21 |
| 2023-07-22 15:00:00July 22, 2023 | Newtown Jets — Blacktown Sea Eagles | 12 - 28 | Knock On Effect NSW Cup | Henson Park | 21 |
| 2023-07-22 17:00:00July 22, 2023 | North Sydney Bears — St George-Illawarra Dragons | 30 - 26 | Knock On Effect NSW Cup | North Sydney Oval | 21 |
| 2023-07-23 11:30:00July 23, 2023 | Penrith Panthers — Canterbury-Bankstown Bulldogs | 40 - 16 | Knock On Effect NSW Cup | BlueBet Stadium | 21 |
| 2023-07-23 15:00:00July 23, 2023 | South Sydney Rabbitohs — Newcastle Knights | 34 - 16 | Knock On Effect NSW Cup | Redfern Oval | 21 |
| 2023-07-23 16:00:00July 23, 2023 | Sydney Roosters — Parramatta Eels | 16 - 32 | Knock On Effect NSW Cup | St Marys Leagues Club | 21 |
| 2023-07-28 19:00:00July 28, 2023 | Canterbury-Bankstown Bulldogs — Sydney Roosters | 16 - 26 | Knock On Effect NSW Cup | Belmore Sports Ground | 22 |
| 2023-07-29 15:00:00July 29, 2023 | St George-Illawarra Dragons — Blacktown Sea Eagles | 20 - 36 | Knock On Effect NSW Cup | Ron Costello Oval | 22 |
| 2023-07-29 17:05:00July 29, 2023 | Penrith Panthers — Newtown Jets | 30 - 6 | Knock On Effect NSW Cup | BlueBet Stadium | 22 |
| 2023-07-30 14:00:00July 30, 2023 | Wests Magpies — South Sydney Rabbitohs | 18 - 36 | Knock On Effect NSW Cup | Lidcombe Oval | 22 |
| 2023-07-30 15:00:00July 30, 2023 | Canberra Raiders — Newcastle Knights | 36 - 24 | Knock On Effect NSW Cup | Belconnen Oval | 22 |
| 2023-07-30 15:00:00July 30, 2023 | North Sydney Bears — Parramatta Eels | 40 - 4 | Knock On Effect NSW Cup | North Sydney Oval | 22 |
| 2023-08-05 12:00:00August 5, 2023 | Penrith Panthers — New Zealand Warriors | 14 - 26 | Knock On Effect NSW Cup | St Marys Leagues Club | 23 |
| 2023-08-05 13:45:00August 5, 2023 | Newcastle Knights — North Sydney Bears | 14 - 54 | Knock On Effect NSW Cup | Newcastle Centre of Excellence | 23 |
| 2023-08-05 15:00:00August 5, 2023 | Canberra Raiders — Wests Magpies | 28 - 22 | Knock On Effect NSW Cup | Belconnen Oval | 23 |
| 2023-08-05 15:00:00August 5, 2023 | South Sydney Rabbitohs — Newtown Jets | 32 - 16 | Knock On Effect NSW Cup | Redfern Oval | 23 |
| 2023-08-06 11:00:00August 6, 2023 | Parramatta Eels — St George-Illawarra Dragons | 44 - 28 | Knock On Effect NSW Cup | Kellyville Park | 23 |
| 2023-08-06 14:00:00August 6, 2023 | Sydney Roosters — Blacktown Sea Eagles | 18 - 28 | Knock On Effect NSW Cup | Wentworth Park | 23 |
| 2023-08-11 19:30:00August 11, 2023 | Blacktown Sea Eagles — Penrith Panthers | 18 - 28 | Knock On Effect NSW Cup | Parker Street Reserve | 24 |
| 2023-08-12 13:00:00August 12, 2023 | South Sydney Rabbitohs — St George-Illawarra Dragons | 50 - 12 | Knock On Effect NSW Cup | Redfern Oval | 24 |
| 2023-08-12 15:00:00August 12, 2023 | Newtown Jets — Canberra Raiders | 12 - 36 | Knock On Effect NSW Cup | Henson Park | 24 |
| 2023-08-12 15:00:00August 12, 2023 | New Zealand Warriors — Wests Magpies | 26 - 16 | Knock On Effect NSW Cup | FMG Stadium Waikato | 24 |
| 2023-08-13 11:30:00August 13, 2023 | Newcastle Knights — Canterbury-Bankstown Bulldogs | 42 - 28 | Knock On Effect NSW Cup | McDonald Jones Stadium | 24 |
| 2023-08-13 14:00:00August 13, 2023 | North Sydney Bears — Sydney Roosters | 18 - 10 | Knock On Effect NSW Cup | North Sydney Oval | 24 |
| 2023-08-18 15:30:00August 18, 2023 | New Zealand Warriors — Blacktown Sea Eagles | 12 - 32 | Knock On Effect NSW Cup | Go Media Stadium | 25 |
| 2023-08-18 17:30:00August 18, 2023 | Parramatta Eels — Sydney Roosters | 22 - 12 | Knock On Effect NSW Cup | CommBank Stadium | 25 |
| 2023-08-19 12:40:00August 19, 2023 | Newcastle Knights — South Sydney Rabbitohs | 16 - 26 | Knock On Effect NSW Cup | Lyall Peacock Oval | 25 |
| 2023-08-19 15:00:00August 19, 2023 | Canberra Raiders — Canterbury-Bankstown Bulldogs | 40 - 12 | Knock On Effect NSW Cup | Belconnen Oval | 25 |
| 2023-08-20 14:00:00August 20, 2023 | North Sydney Bears — Penrith Panthers | 18 - 26 | Knock On Effect NSW Cup | North Sydney Oval | 25 |
| 2023-08-20 14:00:00August 20, 2023 | Wests Magpies — Newtown Jets | 20 - 56 | Knock On Effect NSW Cup | Lidcombe Oval | 25 |
| 2023-08-26 12:00:00August 26, 2023 | St George-Illawarra Dragons — New Zealand Warriors | 12 - 42 | Knock On Effect NSW Cup | Ziems Park | 26 |
| 2023-08-26 14:00:00August 26, 2023 | Penrith Panthers — Parramatta Eels | 24 - 34 | Knock On Effect NSW Cup | BlueBet Stadium | 26 |
| 2023-08-27 11:00:00August 27, 2023 | Newcastle Knights — Newtown Jets | 10 - 48 | Knock On Effect NSW Cup | McDonald Jones Stadium | 26 |
| 2023-08-27 11:35:00August 27, 2023 | Canterbury-Bankstown Bulldogs — Blacktown Sea Eagles | 22 - 32 | Knock On Effect NSW Cup | Accor Stadium | 26 |
| 2023-08-27 14:00:00August 27, 2023 | Sydney Roosters — Wests Magpies | 32 - 44 | Knock On Effect NSW Cup | Wentworth Park | 26 |
| 2023-08-27 14:00:00August 27, 2023 | North Sydney Bears — Canberra Raiders | 14 - 36 | Knock On Effect NSW Cup | North Sydney Oval | 26 |
| 2023-09-02 13:00:34September 2, 2023 | Rabbitohs Vs Warriors | 26 - 12 | Knock On Effect NSW Cup | North Sydney Oval | Week1Finals |
| 2023-09-02 15:00:59September 2, 2023 | Raiders Vs Sea Eagles | 24 - 22 | Knock On Effect NSW Cup | North Sydney Oval | Week1Finals |
| 2023-09-09 13:00:04September 9, 2023 | Warriors Vs Raiders | 49 - 6 | Knock On Effect NSW Cup | Leichhardt Oval | Week2Finals |
| 2023-09-09 17:00:14September 9, 2023 | Bears Vs Rabbitohs | 24 - 30 | Knock On Effect NSW Cup | Leichhardt Oval | Week2Finals |
| 2023-09-16 14:00:25September 16, 2023 | Bears Vs Warriors | 28 - 24 | Knock On Effect NSW Cup | Leichhardt Oval | PreliminaryFinal |
| 2023-09-24 15:00:16September 24, 2023 | Rabbitohs Vs Bears | 22 - 18 | Knock On Effect NSW Cup | CommBank Stadium | GrandFinal |
