Event: SCCU County Championship: U1650

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Opponent	Rating	Result
Iain Hunt	1348	½ - ½
Emma Buckley	1443	1 - 0
H Martin Dale	1249	1 - 0

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

1613 = (4040 + 400 * (2 - 0)) / 3)