Event: ECA 125 Blitz Championship

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Opponent	Rating	Result
John Davenport	1959	0 - 1
Colin R Ramage	1844	0 - 1
Colin V White	1328	1 - 0
David Harrington	1426	1 - 0
James M Robinson	1863	0 - 1
David J Millward	1752	½ - ½
Aryan Gohil	1466	0 - 1

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

1548 = (11638 + 400 * (2 - 4)) / 7)