Event: 4-Board Division 1

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Opponent	Rating	Result
Michael C Hackett	1670	1 - 0
Bryan Hesler	1776	0 - 1
David Atkin	1410	½ - ½

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

1619 = (4856 + 400 * (1 - 1)) / 3)