Event: NSDCA Division 1

Opponent Rating Result
Michael L Hancock 2021 1 - 0
Philip N Birks 1725 1 - 0
Simon Hood 2058 ½ - ½
Philip N Birks 1725 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2182 = (7529 + 400 * (3 - 0)) / 4)

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