Full Back · Accrington ST · season-by-season, by competition, and every match.
O'Brien is operating at his career peak — the 2025/26 level is the level.
The record covers 3 seasons (2024/25–2025/26) across 1 club — 58 appearances with 1 goal contributions from defence.
His best campaign on record is 2025/26 at Accrington ST — Season rating 22, 0 goals and 0 assists in 31 games. Output has held steady across his last 2 full seasons (16 → 22).
| Season | Club | Apps | G | A | Rating | Season |
|---|---|---|---|---|---|---|
| 2025/26 | Accrington ST | 31 | 0 | 0 | 33 | 22 |
| 2024/25 | Accrington ST | 25 | 0 | 1 | 31 | 16 |
| 2022/23 | Accrington ST | 2 | 0 | 0 | 38 | 1 |
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| League Two | 31 | 2272 | 0 | 0 | 6.7 |
| EFL Trophy | 1 | 85 | 0 | 0 | 6.9 |
| UEFA U21 Championship - Qualification | 1 | 44 | 0 | 0 | — |
| FA Cup | 1 | 0 | 0 | 0 | — |
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Jul 12 | Friendlies Clubs | H Blackburn | 1-2 | Not in squad | — | |||
| Jul 15 | Friendlies Clubs | H Everton | 1-1 | Not in squad | — | |||
| Jul 19 | Friendlies Clubs | H Wigan | 2-4 | Not in squad | — | |||
| Jul 26 | Friendlies Clubs | H Rotherham | 4-1 | Not in squad | — | |||
| Aug 2 | League Two | H Gillingham | 1-1 | Not in squad | — | |||
| Aug 5 | League Cup | H Oldham | 3-1 | Not in squad | — | |||
| Aug 9 | League Two | A Crewe | 0-2 | Not in squad | — | |||
| Aug 12 | League Cup | H Peterborough | 2-1 | Not in squad | — | |||
| Aug 16 | League Two | A Salford City | 1-2 | Not in squad | — | |||
| Aug 23 | League Two | H Grimsby | 1-1 | Not in squad | — | |||
| Aug 26 | League Cup | H Doncaster | 0-2 | Not in squad | — | |||
| Aug 30 | League Two | A Shrewsbury | 0-0 | Not in squad | — | |||
| Sep 2 | EFL Trophy | A Fleetwood Town | 2-2 | Not in squad | — | |||
| Sep 6 | League Two | A Cheltenham | 0-1 | Not in squad | — | |||
| Sep 13 | League Two | H Colchester | 1-0 | Not in squad | — | |||
| Sep 20 | League Two | A Milton Keynes Dons | 2-1 | Not in squad | — | |||
| Sep 27 | League Two | H Walsall | 1-3 | Not in squad | — | |||
| Oct 4 | League Two | A Barnet | 0-2 | Not in squad | — | |||
| Oct 7 | EFL Trophy | H Port Vale | 0-2 | Not in squad | — | |||
| Oct 11 | League Two | H Newport County | 0-1 | Played | 45 | 7.2 | ||
| Oct 18 | League Two | H Swindon Town | 4-0 | Played | 34 | 6.9 | ||
| Oct 25 | League Two | A Fleetwood Town | 1-2 | Played | 17 | 6.7 | ||
| Oct 28 | League Two | H Tranmere | 1-1 | Not in squad | — | |||
| Nov 2 | FA Cup | A Gainsborough Trinity | 2-1 | Unused sub | 0 | — | ||
| Nov 8 | League Two | A Chesterfield | 3-3 | Not in squad | — | |||
| Nov 11 | EFL Trophy | H Leeds United U21 | 3-2 | Played | 85 | 6.9 | ||
| Nov 15 | League Two | H Bristol Rovers | 3-1 | Not in squad | — | |||
| Nov 22 | League Two | A Crawley Town | 1-1 | Played | 90 | 6.6 | ||
| Nov 29 | League Two | H Oldham | 1-0 | Played | 45 | 6.6 | ||
| Dec 6 | FA Cup | H Mansfield Town | 1-1 | Not in squad | — | |||
| Dec 9 | League Two | A Harrogate Town | 2-0 | Played | 10 | 6.6 | ||
| Dec 13 | League Two | H Bromley | 0-1 | Unused sub | 0 | — | ||
| Dec 19 | League Two | A Cambridge United | 0-2 | Played | 90 | 6.7 | ||
| Dec 26 | League Two | H Barrow | 2-1 | Played | 86 | 6.9 | ||
| Dec 29 | League Two | H Harrogate Town | 1-0 | Played | 90 | 6.9 | ||
| Jan 1 | League Two | A Notts County | 1-0 | Played | 90 | 7.3 | ||
| Jan 17 | League Two | H Milton Keynes Dons | 0-2 | Played | 76 | 6.6 | ||
| Jan 24 | League Two | A Walsall | 0-0 | Played | 90 | 6.3 | ||
| Jan 27 | League Two | A Newport County | 4-1 | Played | 56 | 6.2 | ||
| Jan 31 | League Two | H Cheltenham | 3-1 | Played | 66 | 6.9 | ||
| Feb 5 | League Two | H Salford City | 1-0 | Played | 90 | 7.2 | ||
| Feb 11 | League Two | A Grimsby | 0-1 | Played | 63 | 7.0 | ||
| Feb 17 | League Two | A Tranmere | 1-0 | Played | 90 | 7.7 | ||
| Feb 21 | League Two | H Shrewsbury | 0-2 | Played | 90 | 6.2 | ||
| Feb 24 | League Two | H Barnet | 0-1 | Played | 90 | 6.3 | ||
| Feb 28 | League Two | A Bromley | 1-2 | Played | 90 | 6.3 | ||
| Mar 7 | League Two | H Cambridge United | 1-1 | Played | 44 | 6.7 | ||
| Mar 14 | League Two | A Barrow | 0-0 | Not in squad | — | |||
| Mar 17 | League Two | H Notts County | 0-4 | Played | 90 | 7.2 | ||
| Mar 21 | League Two | H Chesterfield | 0-1 | Played | 90 | 6.2 | ||
| Mar 28 | League Two | A Bristol Rovers | 0-2 | Played | 75 | 6.2 | ||
| Apr 3 | League Two | H Crewe | 2-0 | Played | 90 | 6.9 | ||
| Apr 6 | League Two | A Gillingham | 0-2 | Played | 58 | 6.0 | ||
| Apr 11 | League Two | H Fleetwood Town | 1-2 | Played | 67 | 6.7 | ||
| Apr 14 | League Two | A Colchester | 1-2 | Played | 90 | 6.9 | ||
| Apr 18 | League Two | A Swindon Town | 2-2 | Played | 90 | 6.9 | ||
| Apr 25 | League Two | H Crawley Town | 3-3 | Played | 90 | 6.5 | ||
| May 2 | League Two | A Oldham | 0-3 | Played | 90 | 6.5 |