Event: Hull Club Championship

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Opponent	Rating	Result
Milosz Kasprzyk	99	1 - 0
John Scotter	115	½ - ½
Steve King	113	½ - ½
Eric W Fisher	133	0 - 1
Saman Khoshnaw	154	0 - 1

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

43 = (614 + 400 * (1 - 2)) / 5)