Event: Division 4

Opponent Rating Result
Graham M Booley 1825 ½ - ½
Vijay Gulab 1593 ½ - ½
David P Holmes 1306 0 - 1
Michael H Cowley 1630 0 - 1
Matthew J Connor 1630 0 - 1
Cyril D Hill 1585 1 - 0
Ray Beach 1323 1 - 0
Leo Abraham 1125 1 - 0
Robert (Bob) King 1435 1 - 0
Peter A Smith 1368 ½ - ½
Graham Bird 1175 ½ - ½
Peter North 1500 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1525 = (17495 + 400 * (5 - 3)) / 12)

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