Event: Steele Cup

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Opponent	Rating	Result
Paul M Arnold	123	1 - 0
Alan A Atkinson	166	0 - 1
Clive J Le Baigue	111	1 - 0

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

267 = (400 + 400 * (2 - 1)) / 3)