Event: Guildford

Opponent Rating Result
Teddy Thomassen 0 1 - 0
Devansh Panda 1306 0 - 1
Ernest Robinson 1248 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

718 = (2554 + 400 * (1 - 2)) / 3)

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