Event: Rapid Play League

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Opponent Rating Result
Peter F Mason 1748 ½ - ½
Peter F Mason 1748 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1948 = (3496 + 400 * (1 - 0)) / 2)

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Opponent Rating Result
Robin F Browne 1758 1 - 0
Robin F Browne 1758 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1758 = (3516 + 400 * (1 - 1)) / 2)