2020: two-year-old season Sodashi was ridden in all of her starts as a two-year-old by Hayato Yoshida. The filly made her debut in an event for previously unraced juveniles over 1800 metres on
firm ground at
Hakodate Racecourse on 12 July and won by two and a half
lengths from the colt Gallant Warrior. On September 5, Sodashi was stepped up in class for the
Grade 3 Sapporo Nisai Stakes over the same distance at
Sapporo Racecourse and started the
3.7/1 second favourite in a fourteen-runner field. After tracking the leaders she gained the advantage in the straight and won by a neck from
Uberleben with a gap of a length and three quarters back to the favourite . On her next appearance Sodashi started the 2.5/1 favourite for the Grade 3
Artemis Stakes over 1600 metres at
Tokyo Racecourse on 31 October. She raced in second place behind the front-running outsider Orange Fizz before taking the lead in the straight, breaking clear of the field and winning by one and three quarter lengths and half a length from Kukuna and . On 10 December Sodashi was moved up to the highest class to contest the Grade 1
Hanshin Juvenile Fillies over 1600 metres at
Hanshin Racecourse and went off the 2.2/1 favourite against seventeen opponents including (Saffron Sho), Meikei Yell (
Kokura Nisai Stakes,
Fantasy Stakes), Infinite (second in the
Saudi Arabia Royal Cup), and Uberleben. In the build up to the race, said "[White horses] are all very sensitive and high maintenance. You do need to be careful with them but with her, that sensitive side is bringing out the best in her. She breaks well and is super responsive when you tell her to go. She's really smart and a very complete racehorse." The filly settled in fourth place on the inside as the outsider set the early pace. After looking to be unlikely to obtain a clear run in the straight, she went to the front inside the last 200 metres and held off the late challenges of Satono Reinas and Uberleben to win by a nose and a neck, becoming the first white Japanese horse to win a graded turf race. Yoshida commented "Going into the race as favorite was a bit of a load, but I'm thrilled with the outcome. She hated to even go near the gate but I'm relieved that all went well and that we were able to be positioned just as I hoped. The going affected her good turn of foot but she gave all she had. There is room for improvement, and I hope we can get her ready for next year's classics." In January 2021, Sodashi was unanimously voted Japan's
Best Two-Year-Old Filly at the
JRA Awards for 2020. In the official Japanese rankings Sodashi was rated the best two-year-old filly of 2020, one pound ahead of Satono Reinas.
2021: three-year-old season Sodashi made her first start of 2021 in the first leg of the
Japanese Fillies Triple Crown, the
Japanese 1000 Guineas, where she won by a neck over Satono Reinas, setting a new record time of 1:31.1 in the process and officially beating
Gran Alegria's previous record. She developed from being "that white filly" to genuine stardom. She suffered her first defeat when she finished eight out of eighteen runners in the 2021
Japanese Oaks, the second leg of the fillies' Triple Crown. She would then go on to win the
Sapporo Kinen over open company before closing out her season with a tenth-place finish in the
Shūka Sho (in which the horse broke her tooth and was bleeding) and a twelfth-place finish in the
Champions Cup.
2022: four-year-old season After a third-place finish in the
February Stakes over the dirt, Sodashi was entered in the Grade 1
Victoria Mile on the turf against fillies and mares. After settling in fourth position for most of the trip, Sodashi stormed to the lead and to victory in the uphill stretch at
Tokyo Racecourse under regular jockey Hayato Yoshida. After this, she went to Sapporo with the anticipation that she would win the Sapporo Kinen for a second year in a row. As Hayayakko, another white horse, was also entered in to the race, this became the first time ever that two white horses were matched together in a JRA race. However, neither horses won the title with Sodashi finishing 5th and Hayayakko 10th behind
Jack d'Or. Sugai deduced that the reason for the loss was due to her weight was increased by 3kg, and announced that she would go to the
Mile Championship next. Before the Mile Championship, she also ran in the
Fuchu Himba Stakes, where she was the most favored by far. She took the lead after placing herself at fifth place for most of the race, but was passed by the dark-horse right before the finish line. At the Mile Championship, she was the second most favored to win behind
Schnell Meister. She was placed at fourth place among the slow pack during the race, and attempted to take the lead as fast as possible on the straight, but was passed by from the outside, as well as
Danon The Kid from the inside, marking her first defeat at a mile race.
2023: five-year-old season Sodashi started her 2023 run with the Victoria Mile on May 14, where she took the lead towards the end, but was passed by
Songline soon after and finished second. She then went on to the Yasuda Kinen, but lost to Songline once again and finished at 7th place. Sodashi developed problems on her legs and was sent to rest at one of the Northern Farm stables. However, it was ultimately decided by Kaneko on October 1 that he would be retiring the horse, saying that he would "pass the baton" to Sodashi's full sister, Mama Cocha, who had just won the
Sprinters Stakes that same day. ==Racing form==