Event: The Friendly League

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Opponent Rating Result
Thisumi Jayawarna 1667 ½ - ½
Davaa Otgonbayar 1421 1 - 0
William T Jones 0 1 - 0
Paul Smith 0 0 - 1
Eric Mansfield 1428 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1063 = (4516 + 400 * (3 - 1)) / 5)

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Opponent Rating Result
Robert Morris 1683 0 - 1
Sebastien Szydlowski 1649 0 - 1
Mike Tanovici 0 1 - 0
John H Schofield 1855 0 - 1
Ronnie Sutton 935 0 - 1
John Pickersgill 1243 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1094 = (7365 + 400 * (2 - 4)) / 6)