| Season | League | Apps | Min | Goals | Assists | G+A / 90 | Rating |
|---|---|---|---|---|---|---|---|
| 26805 | Veikkausliiga | 15 | 486 | 0 | 2 | 0.37 | 7 |
| 2018 | Ykkösliiga | 3 | 192 | 0 | 0 | 0 | — |
| 2018 | Kakkonen | 3 | 122 | 0 | 0 | 0 | — |
| 2019 | Ykkösliiga | 3 | 122 | 0 | 0 | 0 | — |
| 2019 | Kakkonen | 8 | 665 | 0 | 0 | 0 | — |
| 2020 | Kakkonen | 16 | 1293 | 9 | 0 | 0.63 | — |
| 2021 | Ykkösliiga | 22 | 1927 | 2 | 0 | 0.09 | — |
| 2022 | Veikkausliiga | 4 | 21 | 0 | 0 | — | — |
| 2022 | Kakkonen | 5 | 426 | 1 | 0 | 0.21 | — |
| 2024 | Veikkausliiga | 22 | 1486 | 3 | 1 | 0.24 | — |
| 2025 | Veikkausliiga | 28 | 1055 | 2 | 5 | 0.6 | 6.91 |
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: 52 Veikkausliiga defenders, 2025, 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 2026-07-07
Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Inter Turku | 6 | 0 | 2 | 4 | 2 | 0 | 0 | 0 |
 Ilves | 6 | 1 | 2 | 3 | 2 | 1 | 1 | 0 |
 Oulu | 6 | 4 | 1 | 1 | 0 | 1 | 2 | 0 |
 SJK | 5 | 1 | 1 | 3 | 1 | 1 | 0 | 0 |
 VPS | 5 | 1 | 2 | 2 | 0 | 0 | 1 | 0 |
 EIF | 5 | 2 | 0 | 3 | 1 | 0 | 0 | 0 |
 Haka | 5 | 2 | 0 | 3 | 0 | 0 | 1 | 0 |
 HJK | 4 | 2 | 0 | 2 | 0 | 0 | 0 | 0 |
 Mariehamn | 4 | 3 | 1 | 0 | 1 | 2 | 0 | 0 |
 KuPS | 4 | 0 | 1 | 3 | 0 | 0 | 0 | 0 |
 Jaro | 4 | 0 | 2 | 2 | 0 | 0 | 0 | 0 |
 Lahti | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 0 |
 KTP | 2 | 1 | 1 | 0 | 0 | 1 | 1 | 0 |
 MP | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 0 |
 VJS | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 Kajaani | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Viikingit | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 KPV | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 JJK | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Klubi-04 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Player stats against each opponent national team
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 Iceland U17 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Faroe Islands U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Slovakia U17 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Switzerland U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Portugal U17 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Every direct contribution from S. Heiskanen in the 26805 Veikkausliiga was an assist — 2 assists across 15 games (486 minutes) — 0.37 goal involvements per 90. Measured against 52 Veikkausliiga defenders with at least 450 minutes in 2025, he ranks in the 67th percentile by match rating — above the cohort median — goals rank: 4th of 52.
The 26805 rating of 7 is the best of his recorded career; his lowest came in 2025 (6.91).
| Club | Period | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| Klubi-04 | 2018/2019 - 2021/2022 | 57 | 11 | 0 | 4486 | — | — | — |
| Gnistan | 2022/2023 - 2025/2026 | 52 | 7 | 6 | 2771 | — | — | 6.91 |
| KuPS | 2025/2026 - now | 19 | 0 | 2 | 663 | — | — | 7.17 |
| Honka Akatemia | 2021/2022 - 2022/2023 | 5 | 1 | 0 | 426 | — | — | — |
| Honka | 2018/2019 | 4 | 0 | 0 | 21 | — | — | — |
| Total | 137 | 19 | 8 | 8367 |
| Season | Club | Apps | Goals | Assists | Minutes | YC | RC | Rating |
|---|---|---|---|---|---|---|---|---|
| 24/25 | Gnistan | 28 | 2 | — | 1227 | 8 | 4 | 6.91 |
| 23/24 | Gnistan | 24 | 5 | — | 1544 | 2 | 0 | — |
| 21/22 | Honka Akatemia | 5 | 1 | — | 426 | 0 | 0 | — |
| 20/21 | Klubi-04 | 24 | 2 | — | 2092 | 5 | 0 | — |
| 19/20 | Klubi-04 | 16 | 9 | — | 1293 | 1 | 0 | — |
| 18/19 | Klubi-04 | 11 | 0 | — | 787 | 0 | 0 | — |
| 17/18 | Klubi-04 | 6 | 0 | — | 314 | 0 | 0 | — |
