Event: League Division 3

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Opponent	Rating	Result
Mark A Herbert	1182	1 - 0
Liam Kennedy	1419	½ - ½
Zion Osawe	1440	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1614 = (4041 + 400 * (2 - 0)) / 3)