Event: Rapid Play League

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Opponent Rating Result
RA (Bob) Maltby 1540 ½ - ½
RA (Bob) Maltby 1540 ½ - ½
Alex Howdle 1718 ½ - ½
Alex Howdle 1718 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1729 = (6516 + 400 * (1 - 0)) / 4)

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