Event: Division 4

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Opponent Rating Result
Mihai Fecioru 1332 0 - 1
Harry Baybutt-Thompson 1611 1 - 0
John Clarke 1531 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1358 = (4474 + 400 * (1 - 2)) / 3)

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Opponent Rating Result
Andrew Korzhov 0 0 - 1
Bob Amos 1572 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

786 = (1572 + 400 * (1 - 1)) / 2)