Event: John Ripley Handicap

Opponent Rating Result
John P Williams 2012 ½ - ½
John Gillett 1697 1 - 0
Rashid Mohammed Amin Ali 2093 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2201 = (5802 + 400 * (2 - 0)) / 3)

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