| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2024 | First Division (Ireland) | 3 | 153 | 1 | 0 | 0.59 | — |
| 2025 | Premier Division | 11 | 301 | 0 | 0 | 0 | 6.87 |
| 2026 | Premier Division | 13 | 350 | 0 | 1 | 0.26 | 6.73 |
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.
Figures computed from the GioScore season-stats database · as of 2026-07-25
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Shelbourne | 7 | 3 | 3 | 1 | 0 | 0 | 0 | 0 |
 Waterford United | 6 | 2 | 2 | 2 | 0 | 0 | 0 | 0 |
 Bohemians | 5 | 2 | 0 | 3 | 0 | 0 | 0 | 0 |
 St Patrick's | 5 | 3 | 0 | 2 | 0 | 0 | 1 | 0 |
 Galway United | 4 | 2 | 2 | 0 | 0 | 1 | 0 | 0 |
 Sligo Rovers | 4 | 2 | 0 | 2 | 0 | 0 | 0 | 0 |
 Derry City | 4 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
 Cork City | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 0 |
 Drogheda United | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
 Dundalk | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 UCD | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Víkingur Reykjavík | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Finn Harps | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Athlone Town | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Sparta Praha | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Wexford Youths | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Treaty United | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 Kerry | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
John O'Sullivan finished the 2026 Premier Division season with 1 assist and no goals from 13 appearances (350 minutes) — 0.26 goal involvements per 90. His average match rating for that season computes to 6.73.
His recorded league career runs from 2024 to 2026: 3 seasons across 3 clubs. At his best he averaged 6.87 in 2025, Premier Division; at his worst, 6.73 in 2026.
