Event: Division 1

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Opponent	Rating	Result
William N Watson	2356	0 - 1
Mifail TOTA	1910	1 - 0
David J Wilson	1987	1 - 0

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

2218 = (6253 + 400 * (2 - 1)) / 3)