Event: 4th Simon Bartlett Memorial Minor

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Opponent	Rating	Result
Peter J Hughes	1484	1 - 0
Jack Wills	1556	1 - 0
Paul Foster	1570	1 - 0
Richard Brenton	1522	0 - 1
Piran Wills	1555	0 - 1

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

1617 = (7687 + 400 * (3 - 2)) / 5)