Event: NSDCA Division 4

Opponent Rating Result
Cristian-Gabriel Dragan 1200 ½ - ½
Rob Aked 1225 ½ - ½
Raymond F Rhodes 1227 1 - 0
Steve Ballantyne 1361 ½ - ½
Christopher Brian 1220 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1247 = (6233 + 400 * (1 - 1)) / 5)

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