For the second night running, Britain's Team Origin led the Audi MedCup regatta in Cartagena, not because of continuing skill and dominance but because there was so little wind that the organisers gave up mid-afternoon and sent the fleet home.
Hopes are better for Friday, so the scheduled coastal race has been canned and, instead, there will an attempt to stage three, short inshore races.
Also in slower conditions, but still making progress, the leaders in the Sevenstar Round Britain and Ireland race, were set to skirt the Outer Hebrides overnight. They were heading for mark off St.Kilda, 41 miles west of Benbecula
France's Franck Cammas in one of the two Volvo race boats, Groupama, was maintaining a 19-mile lead over the other, Spain's Iker Martinez in Telefonica.
The handicap leader is Piet Vroon's 46-foot Tonnerre de Breskens as the much faster Volvo class Open 70s record-chasing, but the light air may scupper their chances.