Event: South Cheshire Shield

Opponent Rating Result
Neill Harvey-Smith 1748 ½ - ½
Tim Twentyman 1682 0 - 1
Christopher Brian 1179 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1536 = (4609 + 400 * (1 - 1)) / 3)

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