The Royal Family have been completing a marathon themselves of late - with sports fans William, Kate and Harry taking in dozens of Olympic events.
The Duke and Duchess of Cambridge have been to more than a dozen events over the Games fortnight, from the Athletics Stadium, to the Velodrome and Greenwich Park.
Keen hockey player Kate was distraught at last night's defeat of Team GB women's team in the semi-finals against Argentina on Wednesday night.
But the Royal couple have had plenty to celebrate, watching cousin Zara Phillips win a silver medal in the Equestrian eventing, and leaping up to cheer Sir Chris Hoy's cycling gold and Andy Murray's tennis quarter-final.
The third-in-line to the throne, Prince Harry, has also been having a gander at the Games, attending more than six events, including the beach volleyball final at Horse Guard's Parade, where he was accompanied by double gold medal-winning cyclist Laura Trott.