Killer Ability

2021: two-year-old season

Killer Ability began his racing career in a contest for previously unraced juveniles over 1800 metres on firm ground at Tokyo Racecourse on 27 June 2021. Ridden by Christophe Lemaire he started the 2.9/1 second favourite but came home fifth of the eleven runners, three lengths behind the winner Red Belle Ame. Mirai Iwata was in the saddle two months later when the colt started 0.5/1 favourite for a maiden race over 2000 metres at Kokura Racecourse and scored his first success as he took the lead early in the straight and drew right away to win by seven lengths from Personal High in a record time of 1:59.5.^[5] Iwata took the ride again when Killer Ability was stepped up in class and started favourite for the Listed Hagi Stakes over 1800 metres at Hanshin on 30 October. He took the lead in the straight and looked the likely winner before being run down in the final strides and beaten a neck into second place by Danon Scorpion. His trainer commented "He was tense the whole time... he's still immature and he has a somewhat difficult temperament".^[6]

On 28 December at Nakayama Racecourse, Killer Ability was stepped up to Grade 1 class to contest Hopeful Stakes over 2000 metres and went off the 2.1/1 second choice in the betting behind Command Line (winner of the Saudi Arabia Royal Cup) in a fifteen-runner field. Ridden by Takeshi Yokoyama he settled in third place behind Grand Line and Born This Way before switching to the outside approaching the final turn. He gained the advantage from Born This Way entering the last 200 metres and won by one and a half length with a length and a quarter back to Lagulf in third. After the race Yokoyama commented "Sitting in the saddle in his workouts two weeks in a row convinced me that he was going to run and run fast. We sat in a good position and when the colt was able to relax in the backstretch, I had all the confidence I needed that he was going to win. I'm sure he will go on to improve further and become stronger".^[7]

In the official Japanese rankings Killer Ability was rated the second-best two-year-old of 2021, one pound behind the top-rated Do Deuce.^[8] In January 2022, at the JRA Awards, Killer Ability finished second to Do Deuce in the poll to determine the Best Two-Year-Old Colt.^[9]

2022: three-year-old season

On his first appearance as a three-year-old Killer Ability started the 6.6/1 fourth favourite for the Satsuki Sho over 2000 metres at Hanshin Racecourse on 17 April. He started poorly before settling in mid-division and faded in the closing stages to come home thirteenth of the eighteen runners, beaten just over six lengths by the winner Geoglyph.^[10] After the Satsuki Sho, Killer Ability was entered in to the Tōkyō Yūshun held on May 29, where he finished sixth behind Do Deuce.^[11]

Killer Ability took the summer off before returning to the turf by being entered in his first race with older horses, which was the GII Copa Republica Argentina held on November 6, but finished 8th.^[12] The following month, Killer Ability was entered in to the GIII Chunichi Shimbun Hai with Taisei Danno [ja] as his jockey. At that race, Killer Ability was able to make his way through a small gap in the pack, passing over Matenro Leo [ja] just before the finishing line, clinching his second group race victory.^[13]

2023-25: four-to-six-year-old seasons

Killer Ability was entered in to multiple graded races as an older horse. However, he was unable to win any single one of them. His best showing was at the 2024 Neom Turf Cup, held at King Abdulaziz Racetrack in Saudi Arabia, where he finished second behind the English Spirit Dancer.^[14][15]

In May 2025, after returning from that year's Neom Turf Cup whre he finished last, his owner, Carrot Farm, announced that the horse would be retired to stand stud in India.^[16][17]