Event: League Division 3

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Opponent	Rating	Result
Ivor Timmis	1466	½ - ½
Charlie Barton	0	1 - 0
Pradeep Bhosale	1640	1 - 0

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

1302 = (3106 + 400 * (2 - 0)) / 3)