Event: Division 1

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Opponent	Rating	Result
Greg Taylor	0	1 - 0
John Tennyson	2000	0 - 1
Carsten Pedersen	2213	0 - 1

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

1271 = (4213 + 400 * (1 - 2)) / 3)