Event: Division 1

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Opponent	Rating	Result
John Davenport	2002	1 - 0
Robbie Staff	0	1 - 0
David J Millward	1985	0 - 1

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

1462 = (3987 + 400 * (2 - 1)) / 3)