| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2015 | First Division | 8 | 0 | 0 | 0 | — | — |
| 2017/2018 | Premiership | 12 | 1022 | 4 | 0 | 0.35 | — |
| 2018/2019 | Premiership | 2 | 180 | 0 | 0 | 0 | — |
| 2019/2020 | Premiership | 30 | 2582 | 10 | 0 | 0.35 | — |
| 2020/2021 | Premiership | 30 | 1875 | 8 | 0 | 0.38 | 0 |
| 2021/2022 | Premiership | 17 | 777 | 3 | 0 | 0.35 | — |
| 2022/2023 | Premiership | 13 | 131 | 3 | 0 | 2.06 | — |
Domestic league competitions only; G+A/90 computed from minutes actually played.
Cohort: 18 Premiership forwards, 2021/2022, 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 2026-07-07
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Ballymena United | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
 Carrick Rangers | 3 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
 Linfield | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Glentoran | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Cliftonville | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Glenavon | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Portadown | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Dungannon Swifts | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
 Crusaders | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Coleraine | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Limavady United | 1 | 1 | 0 | 0 | 3 | 0 | 0 | 0 |
 Newry City AFC | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Alan O'Sullivan scored 3 goals in 13 Premiership appearances in 2022/2023 (131 minutes), without an assist — 2.06 goal involvements per 90. Measured against 18 Premiership forwards with at least 450 minutes in 2021/2022, he ranks in the 61st percentile by goal involvements per 90 — above the cohort median — goals rank: 6th of 18.
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Warrenpoint Town | 2017/2018 - 2022/2023 | 95 | 30 | 0 | 6638 | — | — | — |
| Portadown | 2022/2023 | 13 | 3 | 0 | 131 | — | — | — |
| Shelbourne | 2014/2015 - 2015/2016 | 10 | 0 | 0 | 180 | — | — | — |
| Malahide United | 2016/2017 - 2017/2018 | 0 | 0 | 0 | 0 | — | — | — |
| Total | 118 | 33 | 0 | 6949 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 22/23 | Portadown | 13 | 3 | — | 131 | 0 | 0 | — |
| 21/22 | Warrenpoint Town | 20 | 8 | — | 929 | 0 | 0 | — |
| 20/21 | Warrenpoint Town | 30 | 8 | — | 1875 | 0 | 0 | — |
| 19/20 | Warrenpoint Town | 30 | 10 | — | 2582 | 2 | 0 | — |
| 18/19 | Warrenpoint Town | 3 | 0 | — | 230 | 1 | 0 | — |
| 17/18 | Warrenpoint Town | 12 | 4 | — | 1022 | 0 | 0 | — |
| 14/15 | Shelbourne | 10 | 0 | — | 180 | 1 | 0 | — |
