Event: Challengers - U1900

Opponent Rating Result
Paul Mottram 1738 0 - 1
John K Robinson 1698 ½ - ½
Omar Oliveri 1637 0 - 1
Brian A Foreman 1705 ½ - ½
Sathsara Dissanayake 1829 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1481 = (8607 + 400 * (0 - 3)) / 5)

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