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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Kari Marttala# | .3796 | 1931-1933 | |
| 2 | Urho Paasikivi# | .3580 | 1931-1933 | |
| 3 | Rasmus Berg# | .3410 | 1931-1933 | |
| 4 | Filip Brenner# | .3333 | 1931-1933 | |
| 5 | Aalto Kujala# | .3267 | 1931-1933 | |
| 6 | Julius Hyrkäs# | .3262 | 1932-1933 | |
| 7 | Ville Mikkola# | .3261 | 1931-1933 | |
| 8 | Roope Räsänen# | .3225 | 1931-1933 | |
| 9 | Henrik Granqvist# | .3163 | 1933-1933 | |
| 10 | Antti Pääkkönen# | .3103 | 1931-1933 | |
| 11 | Elia Costa# | .3089 | 1932-1933 | |
| 12 | Johannes Nikula# | .3054 | 1931-1933 | |
| 13 | Tomas Kinnunen# | .3006 | 1931-1932 | |
| 14 | Jørgen Skålevik# | .2879 | 1933-1933 | |
| 15 | Mau Maïfanya# | .2703 | 1933-1933 |
