| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 2019 | Kakkonen | 14 | 933 | 1 | 0 | 0.1 | — |
| 2020 | Kakkonen | 12 | 271 | 1 | 0 | 0.33 | — |
| 2021 | Kakkonen | 15 | 390 | 1 | 0 | 0.23 | — |
| 2022 | Kakkonen | 23 | 1962 | 2 | 0 | 0.09 | — |
| 2023 | Kakkonen | 9 | 647 | 0 | 0 | 0 | — |
| 2024 | Kakkonen | 4 | — | 0 | — | — | — |
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.
Cohort: 147 Kakkonen midfielders, 2023, 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 2026-09-23
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 VIFK | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 PS Kemi | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 SJK Akatemia | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 OLS | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Vaajakoski | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 JäPS II | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
 MuSa | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 JJK | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 TP-47 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 OPS | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 P-Iirot | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 JIPPO | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 GBK | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 JBK | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 KuFu-98 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 PK-37 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Futura | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 KajHa | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 |
 VPS II | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 RoPS II | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Onni Heikkinen went through 9 Kakkonen appearances in 2023 (647 minutes) without a goal or an assist. Measured against the 147 Kakkonen midfielders who played 450+ minutes in 2023, he ranked in the 28th percentile by goal involvements per 90, and 107th of 147 for goals scored.
His league career on record ran from 2019 to 2024: 6 seasons across 3 clubs.
Across 2020–2022, the heaviest three-year block, he totalled 50 league appearances (17 a season).
