Event: Division 1

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Opponent	Rating	Result
Jim Beaty	1882	½ - ½
Tim Jelfs	1790	½ - ½
Stephen Tatlow	1693	0 - 1

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

1655 = (5365 + 400 * (0 - 1)) / 3)