Event: Burton one-hour tournament

Opponent Rating Result
Graeme Drayton 1316 1 - 0
Edmund M. Jones 0 0 - 1
Ryan L. Smith 0 0 - 1
Trevor C Bould 0 0 - 1
Joe Parker 1469
Vinod M Fernando 1919
Anushka M. Ramawickrama 0
Piotr Natoniewski 1438
Roger Bird 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

129 = (1316 + 400 * (1 - 3)) / 4)

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