Event: Division A

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Opponent	Rating	Result
George Horan	1967	½ - ½
Steven JL Rix	2016	1 - 0
Peter W Rose	1822	0 - 1

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

1935 = (5805 + 400 * (1 - 1)) / 3)