Event: Division C

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Opponent	Rating	Result
John S Marshall	1528	½ - ½
Sunil Vasistha	1401	½ - ½
John Dawson	1295	1 - 0

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

1541 = (4224 + 400 * (1 - 0)) / 3)