[5] Mr Jinks inherited his grey colour from his sire Tetratema, the leading British two-year-old of 1919 who went on to win the 2000 Guineas and many important sprint races.
[6] Mr Jinks' dam False Piety was a granddaughter of Alicia, whose other female-line descendants included the Nunthorpe Stakes winner Golden Cloud.
[8] Mr Jinks had acquired a considerable reputation before he ever appeared on a racecourse and when he made his debut in the New Stakes at Royal Ascot in June many "eager" spectators crowded the paddock to see the "powerful, strong-quartered, big-limbed colt.
"[9] Ridden by Harry Beasley he duly took the race at odds of 9/4,[10] recovering from a poor start to win "in the stle of an exceedingly useful colt" from Lord Astor's Cragadour.
[11] He was then sent to Sandown to contest the five furlong National Breeders' Produce Stakes, which at the time was the most valuable race of the season for two-year-olds, with prize money of over £7,000.
[22] Despite his defeat in the Newmarket Stakes and doubts about his stamina, Mr Jinks started favourite for the Derby over 1+1⁄2 miles at Epsom on 5 June but began to struggle at half way and finished eleventh behind Trigo.
[23] Later that month at Royal Ascot the colt was dropped back in distance for the one-mile St James's Palace Stakes and won "very comfortaby" from seven opponents[24] at odds of 6/4.
[25] The colt was generally expected to follow up in the Sussex Stakes at Goodwood and started at odds of 4/7 but finished fourth behind Le Phare.