Event: Bell Trophy

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Opponent	Rating	Result
Steve Harley	1737	1 - 0
Adam Sefton	1803	0 - 1
Arnav Kumar	1637	½ - ½

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

1726 = (5177 + 400 * (1 - 1)) / 3)