| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2017/2018 | Premier League U18 | 2 | 90 | 0 | 0 | 0 | — |
| 2018/2019 | Premier League U18 | 21 | 1488 | 4 | 6 | 0.6 | — |
| 2019/2020 | Premier League U18 | 8 | 720 | 0 | 4 | 0.5 | — |
| 2019/2020 | Premier League 2 Division One | 6 | 398 | 0 | 0 | 0 | — |
| 2020/2021 | Premier League 2 Division One | 14 | 1150 | 3 | 3 | 0.47 | — |
| 2021/2022 | Championship (England) | 7 | 328 | 0 | 0 | 0 | 6.8 |
| 2021/2022 | Premier League 2 Division One | 12 | 1074 | 2 | 3 | 0.42 | — |
| 2022/2023 | Premiership | 34 | 2649 | 5 | 8 | 0.44 | 7.29 |
| 2023/2024 | Premiership | 36 | 2653 | 3 | 4 | 0.24 | 7.08 |
| 2024/2025 | Premiership | 34 | 1994 | 4 | 1 | 0.23 | 7.05 |
| 2025/2026 | Premiership | 13 | 448 | 0 | 0 | 0 | 6.68 |
| 2025/2026 | League One (England) | 13 | 781 | 0 | 2 | 0.23 | 6.83 |
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 2026-07-26
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Rangers | 15 | 3 | 2 | 10 | 2 | 0 | 4 | 0 |
 Celtic | 13 | 0 | 3 | 10 | 0 | 1 | 2 | 0 |
 Motherwell | 13 | 7 | 2 | 4 | 2 | 1 | 2 | 0 |
 Hibernian | 12 | 3 | 3 | 6 | 2 | 2 | 0 | 0 |
 Hearts | 12 | 5 | 2 | 5 | 2 | 0 | 2 | 0 |
 St. Mirren | 12 | 3 | 2 | 7 | 2 | 0 | 0 | 0 |
 Livingston | 10 | 6 | 3 | 1 | 0 | 1 | 1 | 0 |
 Kilmarnock | 9 | 4 | 0 | 5 | 0 | 0 | 0 | 0 |
 Ross County | 9 | 5 | 3 | 1 | 0 | 0 | 1 | 0 |
 St. Johnstone | 9 | 4 | 4 | 1 | 2 | 0 | 1 | 0 |
 Dundee United | 8 | 3 | 2 | 3 | 0 | 0 | 0 | 0 |
 Dundee | 8 | 5 | 2 | 1 | 0 | 0 | 0 | 0 |
 Napoli U19 | 3 | 2 | 1 | 0 | 0 | 0 | 0 | 0 |
 West Bromwich Albion | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Wigan Athletic | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 Blackpool | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Leicester City | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Barnsley | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Cardiff City | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Leicester City U23 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 |
Every direct contribution from Leighton Clarkson in the 2025/2026 League One (England) was an assist — 2 assists across 13 games (781 minutes) — 0.23 goal involvements per 90. Per-match rating over the season: 6.83.
2022/2023 stands as his highest-rated season (7.29, Premiership), with 2025/2026 the weakest (6.68). The recent curve points down: 0.3 below his prior career average across the last two rated seasons.
