Event: Barnett

Opponent Rating Result
Fazal Rabbi 144 1 - 0
Christopher Bak 192 0 - 1
Paul RH Clarke 151 ½ - ½
John K Holliday 145 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

258 = (632 + 400 * (2 - 1)) / 4)

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