Event: Div 4 - Athenaeum Cup

Opponent Rating Result
Zilu Ji 1091 1 - 0
George Gledhill 0 0 - 1
Mike Hoyes 1255 ½ - ½
Chris Bailey 0 0 - 1
Michael W Simmons 1152 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

700 = (3498 + 400 * (2 - 2)) / 5)

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