After winning two minor races as a two-year-old in 2020 he won the Kyodo Tsushin Hai on his first run of 2021 and maintained his unbeaten record by taking the Satsuki Sho on his next start.

[3] She was a half-sister to the dam of Admire Moon and a grand-daughter of the Irish-bred mare Katies whose other descendants have included Sleepless Night (Sprinters Stakes) and Hishi Amazon (Hanshin Juvenile Fillies, Queen Elizabeth II Commemorative Cup).

On 8 November over the same distance at Tokyo Racecourse he started second favourite behind Veil Nebula for a minor race and came from fourth place on the final turn to win by one and a quarter lengths.

[5] Commenting on the colt's juvenile campaign, Yuichi Shikato said "physically and mentally he was a little weak, and his hindquarters weren’t so strong, so it took him a bit of time to recover from races.

"[6] For his first run as a three-year-old Efforia was stepped up in class to contest the Grade 3 Kyodo Tsushin Hai over 1800 metres at Tokyo on 14 February and started the 5.8/1 fourth choice in the betting behind Stella Veloce (winner of the Saudi Arabia Royal Cup), Shahryar and the filly Leftovers.

Takeshi Yokoyama settled in fourth place as Titleholder and World Revival set the pace before making rapid progress to take the lead entering the straight.

[11] After an absence of six months, Efforia returned to the track for the autumn edition of the Tenno Sho over 2000 metres at Tokyo on 31 October, when he was matched against older horses for the first time.

He was made the 2.4/1 third choice in the betting behind Contrail and Gran Alegria in an eighteen-runner field which also included World Premiere, Persian Knight (Mile Championship) and Curren Bouquetd'or.

With the most fan votes and sent off as the favorite in the 2500-metre event, Efforia moved forward from the middle of the pack to take the lead in the stretch, winning by three quarters of a length.