Event: Division 3

Opponent Rating Result
Graham J Gibson 1629 0 - 1
Philip Erentz 1553 0 - 1
Nigel D Marshall 1513 1 - 0
Keith W Roper 1735 1 - 0
Robert H Willoughby 1624 ½ - ½
Trevor FW Lewis 1512 0 - 1
Paul D Rees 1585 1 - 0
Gavin Dow 1432 ½ - ½
Paul D Rees 1585 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1619 = (14168 + 400 * (4 - 3)) / 9)

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