Event: 4-Board Division 1

Opponent Rating Result
Stephen Foster 1150 0 - 1
Kevin Wells 1495 1 - 0
Peter T Perkins 1683 ½ - ½
Esmond Harding 1330 ½ - ½
Joseph Catto 1690 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1470 = (7348 + 400 * (1 - 1)) / 5)

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