Event: Division 1

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Opponent	Rating	Result
John S Clarke	1779	1 - 0
Zheheng Ding	1940	1 - 0
Gary Murphy	1856	0 - 1

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

1992 = (5575 + 400 * (2 - 1)) / 3)