Event: B&DCL Div 5

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Opponent Rating Result
John Beasant 1415 1 - 0
Brian Hilton 1340 1 - 0
Brian Hilton 1340 0 - 1
Dragos Milea 1100 0 - 1
Ken Dixon 1409 1 - 0
Peter Ashwood 1293 1 - 0
Matthew P Smith 1450 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1392 = (9347 + 400 * (4 - 3)) / 7)

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