Event: Division 2

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Opponent Rating Result
Geoffrey Gammon 1495 ½ - ½
Jim Rowlands 1351 ½ - ½
Ben Mumford 1580 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1342 = (4426 + 400 * (0 - 1)) / 3)

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Opponent Rating Result
Rasvydas Slajus 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 1)) / 1)