| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 27065 | Npl Victoria | 1 | 72 | 0 | 0 | — | 6 |
| 2017 | Premier Division | 1 | 29 | 0 | 0 | — | — |
| 2018 | Premier Division | 12 | 677 | 0 | 0 | 0 | — |
| 2019 | First Division (Ireland) | 11 | 339 | 2 | 0 | 0.53 | — |
| 2022 | Premier Division | 9 | 633 | 1 | 3 | 0.57 | 0 |
| 2023 | Premier Division | 2 | 103 | 0 | 0 | 0 | 6 |
| 2024 | Premier Division | 30 | 367 | 0 | 3 | 0.74 | — |
Domestic league competitions only (SportMonks sub_type='domestic'); national-team, continental and cup competitions are excluded. Classification resolved by league id against the canonical leagues index. G+A/90 computed from minutes actually played.
Cohort: 36 Premier Division midfielders, 2022, min. 450 minutes. Computed by ranking the full league corpus, not taken from any feed.
Figures computed from the GioScore season-stats database · as of 2026-07-08
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Shamrock Rovers | 8 | 1 | 2 | 5 | 0 | 0 | 1 | 0 |
 St Patrick's | 7 | 1 | 2 | 4 | 0 | 0 | 0 | 0 |
 Drogheda United | 6 | 1 | 3 | 2 | 0 | 1 | 1 | 0 |
 Longford Town | 5 | 2 | 1 | 2 | 0 | 0 | 0 | 0 |
 Dundalk | 5 | 2 | 2 | 1 | 0 | 2 | 1 | 0 |
 Bohemians | 4 | 0 | 1 | 3 | 0 | 0 | 1 | 0 |
 Shelbourne | 4 | 1 | 0 | 3 | 0 | 0 | 0 | 0 |
 Bray Wanderers | 4 | 1 | 0 | 3 | 0 | 0 | 1 | 0 |
 Waterford United | 4 | 3 | 0 | 1 | 0 | 0 | 0 | 0 |
 Wexford Youths | 4 | 2 | 0 | 2 | 1 | 0 | 0 | 0 |
 Cobh Ramblers | 3 | 1 | 0 | 2 | 1 | 0 | 0 | 0 |
 Sligo Rovers | 3 | 0 | 2 | 1 | 1 | 0 | 0 | 0 |
 Derry City | 3 | 1 | 0 | 2 | 0 | 0 | 1 | 0 |
 UCD | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 |
 Athlone Town | 3 | 2 | 1 | 0 | 0 | 1 | 1 | 0 |
 Kerry | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Galway United | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Finn Harps | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 |
 Green Gully | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
Karl O'Sullivan finished the 2024 Premier Division season with 3 assists and no goals from 30 appearances (367 minutes) — 0.74 goal involvements per 90. Measured against 36 Premier Division midfielders with at least 450 minutes in 2022, he ranks in the top 1% by match rating; on goals he ranks 8th of 36.
The database holds 7 league seasons for him, from 2017 to 2025 across 4 clubs.
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Galway United | 2023/2024 - 2024/2025 | 34 | 0 | 3 | 478 | — | — | — |
| Limerick | 2016/2017 - 2018/2019 | 27 | 2 | 0 | 1244 | — | — | — |
| Treaty United | 2024/2025 - now | 11 | 1 | 3 | — | — | — | — |
| Sligo Rovers | 2021/2022 - 2023/2024 | 11 | 1 | 3 | 736 | — | — | 6.00 |
| Total | 83 | 4 | 9 | 2458 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Treaty United | 11 | 1 | — | — | 3 | 0 | — |
| 24/25 | Galway United | 3 | 0 | — | 90 | 0 | 0 | — |
| 23/24 | Galway United | 31 | 0 | — | 388 | 3 | 0 | — |
| 21/22 | Sligo Rovers | 9 | 1 | — | 633 | 3 | 0 | — |
| 18/19 | Limerick | 12 | 2 | — | 358 | 4 | 0 | — |
| 17/18 | Limerick | 14 | 0 | — | 857 | 2 | 0 | — |
