| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2018 | Premier Division | 24 | 2151 | 1 | 0 | 0.04 | — |
| 2019 | Premier Division | 30 | 1829 | 0 | 0 | 0 | — |
| 2020 | Premier Division | 3 | 270 | 0 | 0 | 0 | — |
| 2021 | Premier Division | 31 | 2762 | 1 | 0 | 0.03 | — |
| 2023 | Premier Division | 2 | 103 | 0 | 0 | 0 | 6 |
| 2024 | Premier Division | 2 | 50 | 0 | 0 | — | — |
| 2025 | Premier Division | 18 | 773 | 0 | 0 | 0 | 7 |
| 2026 | Premier Division | 19 | 1658 | 4 | 1 | 0.27 | 7.16 |
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 2026-07-11
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Drogheda United | 6 | 0 | 3 | 3 | 0 | 0 | 0 | 0 |
 St Patrick's | 6 | 1 | 0 | 5 | 0 | 0 | 1 | 0 |
 Galway United | 5 | 3 | 1 | 1 | 0 | 0 | 1 | 1 |
 Shamrock Rovers | 4 | 1 | 1 | 2 | 1 | 0 | 1 | 0 |
 Bohemians | 4 | 1 | 1 | 2 | 1 | 0 | 0 | 0 |
 Waterford United | 4 | 3 | 0 | 1 | 0 | 0 | 2 | 0 |
 Hibernian | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 Livingston | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 Aberdeen | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Shelbourne | 3 | 0 | 1 | 2 | 0 | 0 | 2 | 0 |
 Inverness CT | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Dundee United | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Dundee | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Motherwell | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Hearts | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Sligo Rovers | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
 Finn Harps | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 Derry City | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 |
 Dundalk | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Celtic | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
John Mahon closed the 2026 Premier Division campaign on 4 goals and 1 assist from 19 outings (1,658 minutes) — 0.27 goal involvements per 90. His average match rating for that season computes to 7.16.
The database holds 8 league seasons for him, from 2018 to 2027 across 4 clubs. He is at his recorded peak: 2026's 7.16 tops every previous season, with 2025 (7) the low mark.
