Event: Lewisham Club Championship 2023

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Opponent	Rating	Result
Mike H Wood	0	1 - 0
Colin Gentile	0	½ - ½
Rod Wigbout	1894	1 - 0
Martin G Gruau	1917	½ - ½
Alex Cooper	1713	1 - 0

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

1345 = (5524 + 400 * (3 - 0)) / 5)