| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2021 | First Division (Ireland) | 5 | 195 | 0 | 0 | 0 | — |
| 2022 | First Division (Ireland) | 1 | — | 0 | 0 | — | — |
| 2023 | First Division (Ireland) | 11 | 318 | 0 | 0 | 0 | — |
| 2024 | First Division (Ireland) | 30 | 2538 | 3 | 0 | 0.11 | 7.2 |
| 2025 | First Division (Ireland) | 29 | 2576 | 1 | 2 | 0.1 | 6.42 |
| 2026 | First Division (Ireland) | 20 | 1511 | 0 | 2 | 0.12 | 6.49 |
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 | ||
|---|---|---|---|---|---|---|---|---|
 Treaty United | 8 | 4 | 0 | 4 | 0 | 0 | 0 | 0 |
 Cobh Ramblers | 7 | 2 | 4 | 1 | 0 | 0 | 1 | 0 |
 Athlone Town | 6 | 1 | 3 | 2 | 0 | 0 | 3 | 0 |
 Finn Harps | 5 | 0 | 4 | 1 | 0 | 0 | 1 | 0 |
 UCD | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Wexford Youths | 5 | 1 | 2 | 2 | 0 | 0 | 0 | 0 |
 Kerry | 5 | 2 | 1 | 2 | 0 | 0 | 1 | 0 |
 Cork City | 4 | 0 | 0 | 4 | 0 | 0 | 2 | 0 |
 Galway United | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 0 |
 Bray Wanderers | 2 | 0 | 0 | 2 | 0 | 0 | 2 | 1 |
 Dundalk | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Shamrock Rovers | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Limerick | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Cabinteely | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Longford Town | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Waterford United | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Every direct contribution from Dean O'Shea in the 2026 First Division (Ireland) was an assist — 2 assists across 20 games (1,511 minutes) — 0.12 goal involvements per 90. GioScore's computed rating for the season averages 6.49.
His recorded league career runs from 2021 to 2026: 6 seasons across 5 clubs. At his best he averaged 7.2 in 2024, First Division (Ireland); at his worst, 6.42 in 2025.
