1935: two-year-old season As a two-year-old, Mieuxce raced three times and finished second on each occasion. Two of his runs came in prestigious events in late autumn. He was beaten by Fastnet
Prix Thomas Bryon over 1500 metres at Saint-Cloud Racecourse in November, having finished runner-up to the
filly Amalia in the
Prix de Condé over 2000 metres at
Longchamp Racecourse in the previous month.
1936: three-year-old season In early April 1936, Mieuxce was a very impressive winner of the Prix Delatre over 2000 metres at
Maisons-Laffitte Racecourse but in the
Prix Greffulhe at Longchamp he was beaten by Fastnet after losing a great deal of ground at the start. In the same month the colt won the Prix Lupin over 2100 metres, beating Grand Manitou and Patachon. In June, Mieuxce started at odds of
4.5/1 in a fourteen-runner for the 99th running of the Prix du Jockey Club over 2400 metres at
Chantilly Racecourse. Ridden by Andre Rabbe, he won by one and a half lengths At the end of June the colt was moved up in distance for the Grand Prix de Paris over 3000 metres and started 2.5/1 favourite against nineteen opponents. The start of the race was somewhat delayed by a protest from a group of
suffragettes who paraded in front of the stands before presenting a letter to the
French President Albert François Lebrun. Mieuxce was not among the early leaders as Grand Manitou set a slow pace but moved up into third behind the
Prix Eclipse winner Alcali and the British challenger Sind. In the closing stages Rabbe urged the favourite to quicken and Mieuxce accelerated past his rivals to win by one and a half lengths from Sind, with a further length and a half back to Alcali in third place. After the race Cunnington (who was of British descent) was interviewed in the paddock: with his
bowler hat and
tweed suit he was described as "a speaking likeness of what a Frenchman imagines
John Bull to be". Mieuxce was being prepared for a run in the
Prix de l'Arc de Triomphe when he sustained an injury in training which ended his racing career. The injury involved a failure of the suspensory
ligament in his left foreleg which led to a breakdown of the
fetlock, but was also described as a split
pastern. ==Stud record==