Event: North Norfolk Rapidplay (25|10)

Opponent Rating Result
Edward Hackford 1573 ½ - ½
David P Jones 1343 1 - 0
David P Jones 1338 1 - 0
Tony R Larner 1508 1 - 0
Tony R Larner 1508 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1774 = (7270 + 400 * (4 - 0)) / 5)

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