Event: Northamptonshire Silver King League Division 1

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Opponent	Rating	Result
Shayan Zarein Dolab	1687	1 - 0
Sajan Ganger	0	1 - 0

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

1244 = (1687 + 400 * (2 - 0)) / 2)