Event: Derby & District Division 3

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Opponent Rating Result
Keith Walsh 1675 1 - 0
Graeme Drayton 1323 ½ - ½
Colin Ross 1491 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1763 = (4489 + 400 * (2 - 0)) / 3)

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Opponent Rating Result
Javi Martinez 1849 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2249 = (1849 + 400 * (1 - 0)) / 1)