Jamaican sprinter Yohan Blake wants to "remain unbeaten" as his preparation for the London Olympic Games continues to impress.

Blake has already beaten Usain Bolt in the 100m and 200m Jamaican trials and on Tuesday he ran 9.85 seconds in Switzerland to win another sprint.

"This is where I am supposed to be. Not many guys run 9.85s. I want to remain unbeaten and that's what I am doing," said Blake.

"Definitely I am on the right path for the Olympics. I didn't come here to run a quick time but it's still a fast time."

Blake is tipped as Bolt's main rival for the sprints in London.