| 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 | 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: 32 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 2026-07-30
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 |
 JJK | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 SJK Akatemia | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
 Vaajakoski | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 RoPS II | 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 |
 OPS | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 OLS | 1 | 0 | 0 | 1 | 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 |
 Ilves 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. Within the 32 Kakkonen midfielders who played 450+ minutes in 2023, he places in the 34th percentile by goal involvements per 90, and 22nd of 32 for goals scored.
6 league seasons sit on his record, from 2019 to 2024 across 3 clubs.
