| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2013 | Veikkausliiga | 1 | — | 0 | 0 | — | — |
| 2013 | Kakkonen | 22 | 1979 | 9 | 0 | 0.41 | — |
| 2013 | Kakkonen-LohkoD | 11 | 990 | 5 | 0 | 0.45 | — |
| 2014 | Veikkausliiga | 3 | 44 | 1 | 0 | — | — |
| 2014 | Kakkonen | 7 | 540 | 0 | 0 | 0 | — |
| 2015 | Veikkausliiga | 20 | 862 | 1 | 0 | 0.1 | — |
| 2016 | Veikkausliiga | 25 | 1188 | 0 | 1 | 0.08 | — |
| 2017 | Veikkausliiga | 31 | 1765 | 1 | 3 | 0.2 | — |
| 2017 | Kakkonen-LohkoC | 1 | — | 1 | 0 | — | — |
| 2018 | Veikkausliiga | 33 | 2737 | 4 | 6 | 0.33 | — |
| 2019 | Veikkausliiga | 26 | 2293 | 5 | 7 | 0.47 | — |
| 2020 | Veikkausliiga | 13 | 1091 | 6 | 1 | 0.58 | — |
| 2020/2021 | 3. Liga | 20 | 839 | 0 | 0 | 0 | — |
| 2021/2022 | Premiership | 33 | 2239 | 1 | 4 | 0.2 | 6.74 |
| 2022/2023 | Premiership | 20 | 838 | 1 | 1 | 0.21 | 6.72 |
| 2023/2024 | League One (England) | 33 | 2490 | 0 | 4 | 0.14 | 6.96 |
| 2024/2025 | League One (England) | 39 | 2977 | 2 | 1 | 0.09 | 6.83 |
| 2025/2026 | League One (England) | 46 | 4140 | 3 | 12 | 0.33 | 6.88 |
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 2026-08-15
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Ross County | 8 | 4 | 2 | 2 | 1 | 0 | 0 | 0 |
 Motherwell | 8 | 4 | 1 | 3 | 1 | 0 | 1 | 0 |
 Celtic | 7 | 0 | 2 | 5 | 0 | 0 | 0 | 0 |
 Livingston | 7 | 1 | 2 | 4 | 0 | 1 | 4 | 0 |
 Bolton Wanderers | 6 | 1 | 1 | 4 | 0 | 0 | 2 | 0 |
 Hibernian | 6 | 3 | 2 | 1 | 0 | 0 | 0 | 0 |
 Kilmarnock | 6 | 2 | 1 | 3 | 0 | 0 | 0 | 0 |
 Wycombe Wanderers | 6 | 3 | 2 | 1 | 0 | 0 | 1 | 0 |
 Peterborough United | 6 | 2 | 2 | 2 | 0 | 0 | 2 | 0 |
 Hearts | 6 | 0 | 2 | 4 | 0 | 0 | 0 | 0 |
 Stevenage | 6 | 3 | 1 | 2 | 0 | 1 | 1 | 0 |
 St. Mirren | 6 | 1 | 2 | 3 | 0 | 0 | 0 | 0 |
 St. Johnstone | 6 | 1 | 1 | 4 | 0 | 0 | 1 | 0 |
 Wigan Athletic | 5 | 1 | 3 | 1 | 0 | 1 | 0 | 0 |
 Reading | 5 | 1 | 2 | 2 | 1 | 0 | 0 | 0 |
 Blackpool | 5 | 1 | 0 | 4 | 0 | 0 | 3 | 0 |
 Barnsley | 5 | 3 | 0 | 2 | 1 | 1 | 0 | 0 |
 Rangers | 5 | 0 | 1 | 4 | 0 | 0 | 1 | 0 |
 Burton Albion | 5 | 3 | 2 | 0 | 0 | 1 | 0 | 0 |
 Northampton Town | 5 | 1 | 2 | 2 | 0 | 0 | 1 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Greece | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Kazakhstan | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Lithuania U21 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 France | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Republic of Ireland | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 Poland | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
 Montenegro | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 Georgia U21 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Norway | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Denmark | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Ukraine | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Bosnia and Herzegovina | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Iceland | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
 Romania | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 England | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Slovakia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 North Macedonia | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Bulgaria | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Netherlands | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 |
 Estonia | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
In the 2025/2026 League One (England), I. Niskanen made 46 appearances (4,140 minutes), with 3 goals and 12 assists — 0.33 goal involvements per 90. That season graded out at an average match rating of 6.88.
No season rated higher than 2023/2024 (6.96, League One (England)); none lower than 2022/2023 (6.72).
