Event: 4th Cornwall Online League

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Opponent	Rating	Result
Richard Clark	0	0 - 1
Octavian Badea	0	1 - 0
Robin FG Kneebone	0	0 - 1
Grant Healey	0	1 - 0
Pat Scully	0	1 - 0

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

80 = (0 + 400 * (3 - 2)) / 5)