| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2013/2014 | League One (England) | 4 | 42 | 0 | 0 | — | — |
| 2015/2016 | Championship (England) | 21 | 1070 | 1 | 2 | 0.25 | 6.92 |
| 2016/2017 | League One (England) | 40 | 3273 | 2 | 3 | 0.14 | — |
| 2017/2018 | League One (England) | 45 | 3999 | 1 | 3 | 0.09 | — |
| 2017/2018 | Enterprise National League North (England) | 11 | 985 | 0 | 0 | 0 | — |
| 2018/2019 | League One (England) | 25 | 1187 | 0 | 2 | 0.15 | — |
| 2019/2020 | League One (England) | 23 | 1698 | 2 | 1 | 0.16 | 6.99 |
| 2020/2021 | League One (England) | 40 | 3536 | 8 | 4 | 0.31 | 7.13 |
| 2021/2022 | League One (England) | 32 | 2473 | 1 | 2 | 0.11 | 6.95 |
| 2022/2023 | League One (England) | 41 | 2995 | 5 | 2 | 0.21 | 7.04 |
| 2023/2024 | League One (England) | 44 | 2393 | 3 | 6 | 0.34 | 7.02 |
| 2024/2025 | League One (England) | 15 | 738 | 3 | 2 | 0.61 | 7.08 |
| 2025/2026 | League One (England) | 29 | 1380 | 3 | 2 | 0.33 | 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 2026-08-13
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Shrewsbury Town | 19 | 6 | 8 | 5 | 1 | 2 | 1 | 0 |
 Oxford United | 17 | 10 | 2 | 5 | 0 | 0 | 2 | 0 |
 Charlton Athletic | 16 | 6 | 8 | 2 | 1 | 1 | 1 | 0 |
 Burton Albion | 16 | 6 | 5 | 5 | 1 | 1 | 1 | 0 |
 Wycombe Wanderers | 14 | 4 | 3 | 7 | 3 | 1 | 0 | 0 |
 Milton Keynes Dons | 14 | 6 | 3 | 5 | 0 | 1 | 1 | 0 |
 Portsmouth | 13 | 1 | 4 | 8 | 1 | 0 | 4 | 1 |
 Peterborough United | 13 | 5 | 2 | 6 | 1 | 0 | 2 | 0 |
 AFC Wimbledon | 13 | 6 | 4 | 3 | 3 | 1 | 0 | 0 |
 Barnsley | 12 | 3 | 4 | 5 | 1 | 1 | 6 | 0 |
 Plymouth Argyle | 12 | 4 | 2 | 6 | 1 | 1 | 2 | 0 |
 Bristol Rovers | 12 | 6 | 3 | 3 | 0 | 0 | 1 | 0 |
 Lincoln City | 11 | 5 | 3 | 3 | 1 | 1 | 2 | 0 |
 Exeter City | 10 | 5 | 1 | 4 | 1 | 2 | 0 | 0 |
 Northampton Town | 10 | 6 | 3 | 1 | 3 | 1 | 0 | 0 |
 Rochdale | 10 | 5 | 4 | 1 | 1 | 0 | 1 | 0 |
 Accrington Stanley | 10 | 5 | 2 | 3 | 3 | 0 | 1 | 0 |
 Wigan Athletic | 9 | 2 | 1 | 6 | 0 | 0 | 3 | 0 |
 Doncaster Rovers | 9 | 2 | 4 | 3 | 2 | 0 | 3 | 0 |
 Port Vale | 9 | 4 | 2 | 3 | 1 | 0 | 0 | 0 |
Across 29 League One (England) appearances in 2025/2026, K. Dempsey contributed 3 goals plus 2 assists (1,380 minutes) — 0.33 goal involvements per 90. His average match rating for that season computes to 6.83.
The record shows 13 league seasons for him (2013–2025) across 6 clubs. At his best he averaged 7.13 in 2020/2021, League One (England); at his worst, 6.83 in 2025/2026.
