Event: D Division

Opponent Rating Result
Precious Amaechi 1700 0 - 1
Jeff Wilson 1453 ½ - ½
Aram Marsh 1557 0 - 1
Grieg Ichim 1572 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1271 = (6282 + 400 * (0 - 3)) / 4)

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