| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2025/2026 | Premier League 2 Division One | 6 | 540 | 0 | 0 | 0 | — |
Domestic league competitions only; G+A/90 computed from minutes actually played.
Cohort: 37 Premier League 2 Division One goalkeepers, 2025/2026, 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 2026-07-06
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Leeds United U21 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Charlton Athletic U21 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Hull City U21 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 AFC Bournemouth U21 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
 West Brom U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Manchester City U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Reading U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Chelsea U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Tottenham U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Arsenal U18 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Manchester United U21 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Colchester United U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ipswich Town U21 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
William O'Sullivan logged 6 appearances (540 minutes) in the 2025/2026 Premier League 2 Division One. Set beside 37 Premier League 2 Division One goalkeepers with at least 450 minutes in 2025/2026, he lands in the top 6% for goal involvements per 90 — goals rank: 2nd of 37.
