Event: Rolls-Royce Club Comp 2019-20

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Opponent	Rating	Result
Sivaramakrishnan Pranav	0	½ - ½
Duncan J Livsey	140	0 - 1

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

-130 = (140 + 400 * (0 - 1)) / 2)