Event: U1850

Opponent Rating Result
Alberto Gissi 1658 1 - 0
Philip Tarrant-Edwards 1517 1 - 0
Brian D Judkins 1802 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1792 = (4977 + 400 * (2 - 1)) / 3)

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