Sailing what kind of boat ?
As the all-out record for a East to west atlantic passage stands currently at :
Plymouth – Newport two handed transatlantic E to W 2800 Jun-94 Primagaz T 60 18.29 Laurent Bourgnon & Cam Lewis SUI 9d 8h 5m 20s 12.49
And for the same strecht of water (Cadiz - San Salvador)
Cadiz – San Salvador 3884 Feb 03 PlayStation C 125 38.1 Steve Fossett USA 9d 13h 30m 18s 16.92
Both times are faster than Colville's time.
The Eurosport webpage has no info on the record.
Wouter