Fernando Alonso got the most out of his Ferrari in Sunday's Belgian Grand Prix but it was not enough to beat Sebastian Vettel's dominant Red Bull and prevent him stretching his overall lead.

The Spaniard went from ninth on the starting grid to second at the finish but still Vettel surged 46 points clear at the top of the championship after his fifth win in 11 races.

"When they are dominating the weekend, when they do everything better than us and they win the race, they deserve the win," Alonso said.