Event: Old Wilsonians Chess Match

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Opponent	Rating	Result
Sanjiv Karthikeyan	1342	1 - 0
Ugas Jeyakanth	1360	0 - 1

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

1351 = (2702 + 400 * (1 - 1)) / 2)