Event: Derby & District Division 3

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Opponent	Rating	Result
Javi Martinez	0	0 - 1
Faith Hill	1358	1 - 0
Craig Fores	1400	½ - ½
Alan Kennedy	1662	0 - 1
Graeme Drayton	1324	½ - ½

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

1069 = (5744 + 400 * (1 - 2)) / 5)