Event: League Division 1

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Opponent	Rating	Result
James W Hunt	0	1 - 0
Roger W Jennings	1901	0 - 1
Clive W Davies	1766	1 - 0

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

1356 = (3667 + 400 * (2 - 1)) / 3)