Event: Division 3

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Opponent	Rating	Result
Simon Gathern	1688	½ - ½
Josh Crompton	1696	0 - 1
Louis Wigley	1638	½ - ½

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

1541 = (5022 + 400 * (0 - 1)) / 3)