Event: Plummer Trophy

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Opponent	Rating	Result
Paul R Selby	1756	0 - 1
Robert W Counsell	1758	½ - ½
Paul Edwards	1789	½ - ½

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

1634 = (5303 + 400 * (0 - 1)) / 3)