Event: Division 2

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Opponent Rating Result
Leslie Andrews 1511 0 - 1
David J Barker 1481 0 - 1
Kevin J Moore 1369 0 - 1
David Gaskell 1133 1 - 0
John Moughtin-Leay 1475 0 - 1
Rory Melough 1506 0 - 1
Stuart Andrews 1169 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1206 = (9644 + 400 * (2 - 5)) / 7)

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