Event: 4-Board Division 2

Opponent Rating Result
Oliver MacDonald 1450 1 - 0(def)
Tim M Turner 1893 0 - 1
Stephen Greep 1698 0 - 1
R Malcolm Hara 1608 ½ - ½
Richard Atkinson 1563 ½ - ½
Andy Blaylock 1255 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1443 = (8017 + 400 * (0 - 2)) / 5)

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