Perhaps his best tournament result was joint first with Liuben Spassov at Hamburg 1977, ahead of István Csom and Milan Matulović.
He was famous for his ability to save or even win from hopelessly lost positions, which earned him the nickname "Houdini".
He gained the International Correspondence Chess Grandmaster title in 1983 and scored a number of impressive results.
In the 14th World Correspondence Chess Championship, won by Tõnu Õim, Webb finished fifth of the 15 participants with 8.5/14.
[2] Webb was perhaps best known for his humorous book on practical tournament play, Chess for Tigers (Oxford University Press, 1978, ISBN 0-19-217575-0).