Event: TCL Division A

Opponent Rating Result
John A Ariss 1593 1 - 0
Phil J McConnell 1588 0 - 1
Joshua P Blackmore 1844 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1542 = (5025 + 400 * (1 - 2)) / 3)

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