Event: Division 4

Opponent Rating Result
Chris W Ford 1606 1 - 0
Raymond Weedall 1637 0 - 1
Alex Langley 1319 1 - 0
Jane Reece 1584 1 - 0
Paul Jesse 1574 1 - 0
Steven E Gerrard 1708 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1838 = (9428 + 400 * (5 - 1)) / 6)

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