Event: Summer League Section 2b

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Opponent Rating Result
Hussam Al Haidar 1506 ½ - ½
Declan Hopkinson 900 1 - 0
Steve Tomlinson 1448 ½ - ½
Ronald Botham 1120 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1444 = (4974 + 400 * (2 - 0)) / 4)

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