Event: Division Three

Opponent Rating Result
Steve Tyler 1721 ½ - ½
Matt D Trigg 1590 1 - 0
Peter L Loach 1639 ½ - ½
Joe Kadar 1682 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1758 = (6632 + 400 * (1 - 0)) / 4)

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