Event: Division 2 - Under 6800

Opponent Rating Result
James Glasson 1303 1 - 0
Jack Wills 1483 1 - 0(def)
John A Ariss 1494 1 - 0
Simon Howard 1461 ½ - ½
George McNally 1400 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1715 = (5658 + 400 * (3 - 0)) / 4)

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