Event: NSDCA Division 4

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Opponent Rating Result
Steve Ballantyne 1365 ½ - ½
Cristian-Gabriel Dragan 1384 0 - 1
Zak Frederick Fenton 1200 0 - 1
Tony Rossiter 1250 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1200 = (5199 + 400 * (1 - 2)) / 4)

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