Event: A&B Division

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Opponent Rating Result
Jake Pearson 1500 1 - 0
Sagar Patil 1684 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1792 = (3184 + 400 * (1 - 0)) / 2)

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Opponent Rating Result
Stephen Gatenby 1266 1 - 0
Richard J Harris 1774 0 - 1
Ryan McGrane 1600 0 - 1
Martin P McLoughlin 1820 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1415 = (6460 + 400 * (1 - 3)) / 4)