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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ricard Olsson# | 1.089 | 1933 | |
| 2 | Krister Jäntti# | 1.078 | 1933 | |
| 3 | Joonas Hirvonen# | 1.070 | 1933 | |
| 4 | Martti Lundell# | 1.056 | 1933 | |
| 5 | Roy Piipponen# | 0.998 | 1933 | |
| 6 | Jouka Hirvensalo# | 0.978 | 1933 | |
| 7 | Risto Valtonen# | 0.972 | 1933 | |
| 8 | Kusti Niinivaara# | 0.939 | 1933 | |
| 9 | Denis Karhunen# | 0.922 | 1933 | |
| 10 | Oiva Nieminen# | 0.892 | 1933 |
