He went on to be an important sire, whose leading runners included Epsom Derby winners Waxy, Champion, and Tyrant.

Potoooooooo (also spelled Pot-8-Os, Pot8Os, Pot8O's, or Pot 8 Os in various sources) was a chestnut colt bred by Willoughby Bertie, 4th Earl of Abingdon, in 1773.

He was the first foal out of Sportsmistress, who was sired by Warren's Sportsman and traced to Thwaites' Dun Mare from family number 38 on her dam's side.

According to the most common, Bertie intended to call the young colt "Potato" and instructed the stable boy to write the name on a feed bin.

[7] In 1780, he again won several races at Newmarket, including the 140 guineas subscription purse where he beat King Fergus, the Jockey Club Plate and another walkover in the Clermont Cup.

In 1782, he had a third walkover in the Clermont, won the Jockey Club Plate for a third time, and was victorious in the Craven Stakes, beating thirteen mostly younger horses.

[6] In 1784, Potoooooooo was retired to stud at Oxcroft Farm near Balsham, Cambridgeshire, where he mostly covered mares owned by Grosvenor.