Event: NCCA League Division 2

Opponent Rating Result
Mark A Nettleton 1469 1 - 0
George Lyall 1350 0 - 1
Chris Flynn 1580 ½ - ½
Harvey W Collins 1535 ½ - ½
Peter WL Clough 1727 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1532 = (7661 + 400 * (1 - 1)) / 5)

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