Event: Division 3

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Opponent	Rating	Result
David King	1461	0 - 1
Rayyan Asif	1500	0 - 1
Michael Soteriou	1197	½ - ½

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

1119 = (4158 + 400 * (0 - 2)) / 3)