Event: A&B Division

Opponent Rating Result
Benjamin Dodgson 1506 0 - 1
Martin P McLoughlin 1820 0 - 1
Brian Whitaker 1542 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1356 = (4868 + 400 * (0 - 2)) / 3)

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