Event: Division 1

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Opponent	Rating	Result
John Moxham	1532	½ - ½
John Whitfield	1802	½ - ½
Michael Deasey	1644	1 - 0

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

1793 = (4978 + 400 * (1 - 0)) / 3)