Event: NCCA League Division 3

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Opponent	Rating	Result
Joe Moran	1581	½ - ½
Carl Purkiss	1567	1 - 0
Rupert P Martin	1530	½ - ½
Peter Cock	1605	½ - ½
Aaron Hodgson	1450	1 - 0
Robin Blackwell	1765	0 - 1
Rupert P Martin	1523	0 - 1
David B Elsey	1396	½ - ½

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

1552 = (12417 + 400 * (2 - 2)) / 8)