Event: 4th Simon Bartlett Memorial Minor

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Opponent	Rating	Result
John R Sellen	1479	0 - 1
Hazel Welch	1264	1 - 0
Roy Greenhalgh	1460	1 - 0
Jack Smith	1466	0 - 1
Joy P Fursman	1526	1 - 0

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

1519 = (7195 + 400 * (3 - 2)) / 5)