Event: North Norfolk Rapidplay (25|10)

Opponent Rating Result
Tony R Larner 1497 1 - 0
Chris Perkins 1608 ½ - ½
Tony R Larner 1487 0 - 1
Chris Perkins 1609 ½ - ½
David P Jones 1325 1 - 0
Michael J Gibbons 1827 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1626 = (9353 + 400 * (2 - 1)) / 6)

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