Event: 5th Somerset New Year Minor

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Opponent	Rating	Result
Shaun Walsh	1395	1 - 0
Aiden Chivers	0	0 - 1
Patrick P Sartain	0	0 - 1
James Wallman	0	0 - 1
Colin J Gardiner	0	1 - 0

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

199 = (1395 + 400 * (2 - 3)) / 5)