1810: three-year-old season Oriana made her racecourse debut in the Oaks Stakes at Epsom on 8 June 1810. Eleven fillies, from an original entry of thirty-three appeared for the race over one and a half miles. Oriana was ridden in the race by her trainer, Billy Peirse and despite her lack of previous experience started the
4/1 second favourite behind
Lord Foley's filly Pirouette (or Peronette). Oriana won "a fine race" from Pirouette, with Lord Grosvenor's Donna Clara in third place. The winning owner's prize of 950
guineas equaled the highest for the race up to that time. On 24 September Oriana appeared at
Doncaster Racecourse for the
St Leger Stakes over one and three quarter miles. She was made the 11/8 favourite in a field of eleven runners comprising eight colts and three fillies. She finished third to the
Duke of Leeds' colt
Octavian, and Major Wheatley's colt Recollection.
1811: four-year-old season On 30 April 1811, Oriana made her first appearance as a four-year-old at
Newmarket's First Spring meeting. In the
Claret Stakes over the two mile Ditch-In course she started at odds of 7/2 and finished second to Mr Payne's colt Crispin with Pirouette in fifth place. At the next Newmarket meeting, Oriana was beaten by Lord Oxford's six-year-old horse Poulton in a 100
Guinea match race over ten
furlongs. Oriana's last race took place at
York Racecourse on 23 August. She was one of four runners for a race over four miles for
"one-third of the Great Subscription" with an additional £50 contributed by the City of York. Oriana started the 8/11 favourite and won from Mr Duncombe's filly Zephyr. ==Stud record==