Event: Rapid Play League

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Opponent Rating Result
Luke Gostelow 1686 0 - 1
Luke Gostelow 1686 0 - 1
Roger W Jennings 2094 1 - 0
Roger W Jennings 2094 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1790 = (7560 + 400 * (1 - 2)) / 4)

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