Event: Max 400

Opponent Rating Result
John P Donovan 95 0 - 1
John Gammon 50 1 - 0
Joe Kadar 90 1 - 0
Ismail Vuran 50 1 - 0
Simon A Killarney 110 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

159 = (395 + 400 * (3 - 2)) / 5)

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