Event: SCCU County Championship: U1650

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Opponent	Rating	Result
Howard J Berlin	1428	0 - 1
Iain Hunt	1348	0 - 1
Matt Garwood	1312	0 - 1

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

963 = (4088 + 400 * (0 - 3)) / 3)