Yes, we know it was all a marketing stunt. And yes, technically three Panasonic Evolta robots took on the Hawaii Triathlon - but that doesn't mean we haven't been worried sick about the little guy (or guys, rather) since we first brought you news of his epic adventures back in September.

But the anguish is over as we're happy to report that the Iron Robot completed the race, inside his 168 hour objective as well.

It took the three robots a total of 166 hours and 56 minutes to complete 230km triathlon challenge. His discipline times were:

- Swim Robot finished the 3.8km swim in 5 hours and 36 minutes

- Bike Robot finished biking 180.2km in 97 hours and 42 minutes

- Run Robot finished the 42.2km run in 63 hours and 38 minutes

Not exactly world record pace but he is only about 6 inches tall, so give him a break.

Tomotaka Takahashi, the founder of Robo-Garage and a research associate professor at the University of Tokyo, said: "We are happy to have made it to the finish line. I want to thank everyone, every member of the crew and the people of Hawaii.

"These days, robots are evolving rapidly due to the technological evolution of batteries and various other devices. I believe Panasonic Evolta batteries and this challenge have turned a new page in history for the robot industry."

We don't think a Sports Personality of the Year award is out of the question for the robot. Even with his batteries dead he's probably got more charm than Andy Murray or Rory McIlroy.