Event: 5th Somerset New Year Minor

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Opponent	Rating	Result
Nidal Shah	0	0 - 1
Shaun Walsh	1395	1 - 0
Richard Brenton	0	1 - 0
Paul G Broderick	0	1 - 0
Joy P Fursman	0	0 - 1

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

359 = (1395 + 400 * (3 - 2)) / 5)