Event: Division 3

Opponent Rating Result
Matt Howells 1474 ½ - ½
Michael Townsend 1820 1 - 0
Duncan M Macarthur 1646 0 - 1
Barry Raynes 1611 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1738 = (6551 + 400 * (2 - 1)) / 4)

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