Event: Redcar Club championship

Opponent Rating Result
Gerry F Walsh 1598 ½ - ½
Jason Gentle 1707 0 - 1
John Cowle 1379 1 - 0
Brian R Myers 1730 ½ - ½
John Bunyan 1522 0 - 1
Gerry F Walsh 1598 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1456 = (9534 + 400 * (1 - 3)) / 6)

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