Event: Quickplay KO 2019-20

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Opponent	Rating	Result
W John Marshall	136	1 - 0
W John Marshall	136	1 - 0
Nicholas G Ashby	0	0 - 1
Nicholas G Ashby	0	0 - 1

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

68 = (272 + 400 * (2 - 2)) / 4)