Event: NSDCA Division 3

Opponent Rating Result
Callum Kirk 850 1 - 0
Rowan J Webb 1271 0 - 1
Nigel Hancock 1119 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1213 = (3240 + 400 * (2 - 1)) / 3)

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