Event: Division 1

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Opponent	Rating	Result
Paul L Williamson	1965	½ - ½
David L Haydon	2351	0 - 1
Olga L Latypova	1992	1 - 0

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

2103 = (6308 + 400 * (1 - 1)) / 3)