Event: OTB J Xmas Blitz

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Opponent	Rating	Result
Sidro Walsh	631	0 - 1
Mannat Johal	594	0 - 1
Toby Pang	1038	0 - 1

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

354 = (2263 + 400 * (0 - 3)) / 3)