Seazun

Seazun began her racing career by finishing sixth in a five furlong maiden race at Newmarket Racecourse on 14 April 1999. Two weeks later the filly started 7/2 joint favourite over five and a half furlongs at Brighton Racecourse. Ridden as on her debut by Richard Quinn she accelerated away from her thirteen rivals in the final furlong and won by two and a half lengths from Blue Velvet.[9]

Seazun was off the course for more than four months before returning in the Listed Sirenia Stakes over six furlongs at Kempton Park Racecourse on 8 September. Ridden by Steve Drowne, she finished well to take second place behind Primo Valentino, a colt who went on to win the Middle Park Stakes. Twenty days later, Quinn was back in the saddle when Seazun was one of fourteen fillies to contest the Group One Cheveley Park Stakes at Newmarket. The French-trained Moon Driver (winner of the Prix d'Arenberg) started favourite ahead of Elaflaak (St Hugh's Stakes), Torgau (Cherry Hinton Stakes) and Mall Queen (Prix Yacowlef), with Seazun next in the betting on 10/1. The other runners included Crimplene, Kalindi (Windsor Castle Stakes) and Jemima (Lowther Stakes). Seazun raced down the centre of the wide Newmarket straight as Torgau set the pace, before moving up to challenge approaching the final furlong. She overtook Torgau in the closing stages and won by a head, with a gap of two and a half lengths back to Crimplene in third place.[10] After the race Channon said "I was expecting a big run from [Breslin's] filly. She just needed the run last time"[11] and added "This filly is just quality. She has only had four runs now, we haven't been hard on her".[12]

On her three-year-old debut Seazun was partnered by Frankie Dettori when she contested the Nell Gwyn Stakes (a trial race for the 1000 Guineas) over seven furlongs at Newmarket. Before the race Channon admitted that the filly had been slower to reach full fitness than he had hoped.[13] After being hampered two furlongs out, she recovered to take second place, but was no match for Petrushka, who won by four lengths. On 7 May she started at odds of 10/1 in an 18-runner field for the 1000 Guineas and finished fourth behind Lahan, Princess Ellen and Petrushka.[14] In the Irish 1,000 Guineas at the Curragh three weeks later she finished fourth of the fourteen runners behind Crimplene, Amethyst and Storm Dream. In the Coronation Stakes at Royal Ascot she suffered a broken blood vessel and finished eighth of the nine runners behind Crimplene.[15]

After a two-month break, Seazun returned in the Celebration Mile at Goodwood Racecourse in which she was matched against colts and older horses. Before the race she had been bought by the Japanese owner Katsumi Yoshida. Ridden by Craig Williams she finished fourth of the six runners behind Medicean, Observatory and Cape Town. On her final racecourse appearance, the filly finished seventh behind Danceabout in the Sun Chariot Stakes at Newmarket on 30 September,