Event: Graded LP Friendlies

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Opponent	Rating	Result
Nigel Gardner	1545	½ - ½
Neville Layhe	1644	1 - 0
Richard Bell	0	½ - ½

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

1196 = (3189 + 400 * (1 - 0)) / 3)