Event: Division Four

Opponent Rating Result
John Pendrous 1400 1 - 0
Chris East 1480 0 - 1
Barry Knee 1454 ½ - ½
Francis Himsworth 1050 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1346 = (5384 + 400 * (1 - 1)) / 4)

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