Sakon Yamamoto has revealed that he will see out the F1 2010 World Championship campaign with Hispania Racing (HRT) - though as yet, it remains unclear whether that will be in place of Bruno Senna or Karun Chandhok, or if the pair will share the second seat.

Having initially been recruited by struggling Spanish newcomer HRT back in mid-April, Yamamoto - who until 2008, two years after his original F1 debut, had never finished inside the points in any series outside of his homeland - was promoted to a race seat for the British Grand Prix at Silverstone three months later, when Senna was inexplicably 'rested' at the eleventh hour.

In the German Grand Prix at Hockenheim a fortnight later, it was Chandhok's turn to be shifted aside to make way for the Japanese ace - and the former Super Aguri and Spyker stand-in has occupied the Indian's cockpit ever since, despite the man from Chennai having asserted only a matter of days ago that he is confident he will be back on the grand prix grid again before the year is out.

With reportedly healthy financial backing behind him - unlike either Senna or Chandhok - Yamamoto has now confirmed that his seat is safe for the remaining six grands prix of 2010, and he insists the persistent game of musical chairs of late has done nothing to harm his relationship with either of his two fellow Hispania drivers.

"I will finish the season," the 28-year-old told formule1.nl. "Whether I replace Bruno or Karun, I don't know - but it is certain that I will do all of the races. My relationship with them is fine. The team is deciding which of them will drive, but my position is in no doubt."