Event: Two West

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Opponent Rating Result
David C Helsby 1810 ½ - ½
Owen Alvares 1810 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2010 = (3620 + 400 * (1 - 0)) / 2)

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Opponent Rating Result
Ray P Hamilton 1488 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1888 = (1488 + 400 * (1 - 0)) / 1)