Player stats against each opponent club
| Team | MP | W | D | L | G | A | ||
|---|---|---|---|---|---|---|---|---|
 JäPS | 5 | 1 | 1 | 3 | 0 | 0 | 0 | 0 |
 EIF | 3 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
 JIPPO | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 0 |
 PK-35 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 |
 TPS | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 |
 KTP | 2 | 0 | 0 | 2 | 1 | 0 | 0 | 0 |
 Klubi-04 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 SJK Akatemia | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 |
 SalPa | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
 I-Kissat | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
 Viikingit | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 |
 Lahti | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
 Jaro | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kultsu | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
 MP | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 Kiffen | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 |
 Reipas | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
 Töölön Taisto | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
 Honka Akatemia | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
 EPS | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
W. Haapiainen is a professional forward. W. Haapiainen has scored 10 goals in 53 professional appearances across 5 clubs. With a career goal ratio of 0.19 per match, W. Haapiainen is a prolific scorer who consistently finds the back of the net. Among the clubs he has represented — KäPa, KPV, PK-35, Klubi-04 — W. Haapiainen was most prolific at PKKU, where he scored 6 goals in 17 appearances.
