Event: Summer League

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Opponent	Rating	Result
Alun Richards	1787	0 - 1
Patrick Baker	1781	½ - ½
Matthew J Munden	1962	0 - 1
Ian D Jenkins	1303	1 - 0
David Horton	1371	1 - 0
Alun Richards	1787	0 - 1
Patrick Baker	1781	0 - 1
Matthew J Munden	1962	0 - 1
Ian D Jenkins	1303	1 - 0
David Horton	1371	1 - 0

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

1601 = (16408 + 400 * (4 - 5)) / 10)