| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2017/2018 | Premier League U18 | 9 | 663 | 2 | 0 | 0.27 | — |
| 2018/2019 | Premier League U18 | 8 | 461 | 1 | 0 | 0.2 | — |
| 2020 | First Division (Ireland) | 15 | 1221 | 0 | 0 | 0 | — |
| 2021 | First Division (Ireland) | 23 | 1697 | 1 | 0 | 0.05 | 0 |
| 2022 | Premier Division | 28 | 1853 | 0 | 1 | 0.05 | — |
| 2023 | Premier Division | 13 | 1099 | 0 | 1 | 0.08 | 6.65 |
| 2024 | First Division (Ireland) | 23 | 1765 | 1 | 0 | 0.05 | 7.04 |
| 2025 | Premier Division | 4 | 224 | 0 | 0 | 0 | 6.46 |
| 2025 | First Division (Ireland) | 27 | 1943 | 5 | 0 | 0.23 | 6.36 |
| 2026 | First Division (Ireland) | 13 | 761 | 1 | 0 | 0.12 | 6.6 |
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 2026-07-24
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Cobh Ramblers | 6 | 1 | 1 | 4 | 1 | 0 | 0 | 0 |
 Bray Wanderers | 6 | 2 | 1 | 3 | 0 | 0 | 2 | 1 |
 Finn Harps | 5 | 4 | 1 | 0 | 2 | 0 | 2 | 1 |
 Longford Town | 5 | 3 | 1 | 1 | 0 | 0 | 3 | 0 |
 UCD | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 |
 Athlone Town | 5 | 3 | 0 | 2 | 2 | 0 | 1 | 0 |
 Wexford Youths | 5 | 3 | 1 | 1 | 0 | 0 | 2 | 0 |
 Treaty United | 5 | 2 | 1 | 2 | 0 | 0 | 1 | 0 |
 Cork City | 4 | 0 | 1 | 3 | 0 | 0 | 1 | 0 |
 Kerry | 4 | 3 | 1 | 0 | 0 | 0 | 1 | 0 |
 Bohemians | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 Dundalk | 3 | 0 | 1 | 2 | 0 | 0 | 1 | 0 |
 Galway United | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Sligo Rovers | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 Cabinteely | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Derry City | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 |
 Drogheda United | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Waterford United | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Coventry City | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Shamrock Rovers | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Ukraine U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 FYR Macedonia U17 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Bulgaria U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Azerbaijan U17 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Netherlands U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Denmark U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Georgia U17 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
All of Sean Brennan's 2026 First Division (Ireland) output came as goals: 1 goal in 13 games (761 minutes) — 0.12 goal involvements per 90. That season graded out at an average match rating of 6.6.
His league record spans 10 seasons (2017–2026) across 5 clubs. His ratings range from 0 (2021) up to 7.04 in 2024, First Division (Ireland). The recent direction is upward: 1.92 above his prior average across the last two rated seasons.
