Event: WMA Spring League Division 2

Opponent Rating Result
Nigel Byrne 70 1 - 0
Robin Hayles 70 ½ - ½
Jaspar Goodall 70 1 - 0
Nigel Byrne 70 1 - 0
Robin Hayles 70 1 - 0
Jaspar Goodall 70 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

270 = (420 + 400 * (4 - 1)) / 6)

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