Event: Graded LP Friendlies

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Opponent	Rating	Result
Matthew Dean	1158	1 - 0
Philip Grocott	1285	0 - 1
Jakub Grabowski	1404	½ - ½

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

1282 = (3847 + 400 * (1 - 1)) / 3)