Event: Division 3

Opponent Rating Result
Conor Hickey 1613 ½ - ½
Sid McDonald 1403 0 - 1
Lee R Osmon 1315 0 - 1
Wan Sarah Wan Ahmad Kamil 1350 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1320 = (5681 + 400 * (1 - 2)) / 4)

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