Event: Hammersmith Rockhammer Cup (Online)

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Opponent Rating Result
Christof Brixel 2057 1 - 0
Christof Brixel 2057 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2257 = (4114 + 400 * (1 - 0)) / 2)

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