Event: W/E U1800

Opponent Rating Result
Marc A Bryant 1561 1 - 0
David Lettington 1669 0 - 1
Peter Finch 1477 ½ - ½
Cal Hope Maginn 1544 ½ - ½
Chris D Brown 1598 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1570 = (7849 + 400 * (1 - 1)) / 5)

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