Event: Worcestershire Rapidplay league

Opponent Rating Result
Scott Oxtoby 1493 1 - 0
Scott Russell 1627 0 - 1
Rob Sutton 1659 0 - 1
Scott Oxtoby 1493 1 - 0
Rob Sutton 1659 1 - 0
Scott Russell 1627 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1660 = (9558 + 400 * (3 - 2)) / 6)

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