Event: Division 2

Opponent Rating Result
Paul W Anderson 1705 0 - 1
Nicholas Pinkerton 1604 ½ - ½
Howard Brears 1553 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1621 = (4862 + 400 * (1 - 1)) / 3)

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