Event: Thornaby Rapidplay Ladder

Opponent Rating Result
Chris Swales 1592 0 - 1
Francis Batchelor 1990 0 - 1
Joseph Machin 1337 0 - 1
Michael J Creaney 1666 1 - 0
Janos Mehes 1465 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1450 = (8050 + 400 * (1 - 3)) / 5)

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