Event: Division 2

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Opponent	Rating	Result
Ben Toth	0	½ - ½
Janis Petersons	0	½ - ½
Guy Turvey	1443	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

481 = (1443 + 400 * (0 - 0)) / 3)