Event: Division Five

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Opponent	Rating	Result
Roger Ball	118	0 - 1
A (Tony) Taylor	94	½ - ½
AJ (Tony) Szatanik	108	½ - ½
Sheila Robinson	100	0 - 1
Chris Sinclair	85	1 - 0
David Jukes	75	1 - 0
Javad Kohansal	0	0 - 1

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

26 = (580 + 400 * (2 - 3)) / 7)