Hiyu’s motorsport journey started on the karting circuits at 8 years old, competing in various karting championships. He gained valuable experience in the karting field with one of his highlights finishing 2nd overall in the IAME Series Japan – X30 Junior in 2020. Since joining VAR for the Italian F4 and Euro 4 Championships in 2024, Hiyu has shown his resilience on track, delivering consistently strong performances. He was among one of the top contenders in both championships, claiming a total of 11 podiums, 4 wins, 3 pole positions, and 4 fastest laps.
 

The Italian F.4 Championship officially concluded with the third race at the Autodromo Nazionale Monza. Putting the final seal on the season was Australian driver Gianmarco Pradel, representing US Racing, who achieved his first victory by overtaking poleman Freddie Slater in a highly challenging race. Pradel was rewarded with the win after a weekend that presented him with some difficulties in the previous two races, but he skillfully seized the opportunity with a spectacular pass, closing out the year in the best possible way.

At the Autodromo Nazionale Monza, Freddie Slater continues to rack up victories, feeding his absolute record in the Italian F.4 Championship. With his second victory of the weekend, the British driver from Prema Racing now reaches a total of 15 wins.

The Euro 4 Championship 2024, the second edition of the Championship promoted by ACI Sport and WSK Promotion, concluded with Race 3 at Monza. The new Champion is Akshay Bohra, the Indian-American driver from US Racing. After two P2 finishes this weekend, Bohra entered Race 3 as the Championship leader, with only Freddie Slater from Prema Racing and Hiyu Yamakoshi from Van Amersfoort left in the title fight. However, Yamakoshi needed nothing less than a win, with Bohra finishing out of the points, to claim the title.

Kean Nakamura-Berta triumphs in Race 2 at Monza. Another P2 for Akshay Bohra, now leading the drivers' standings. Gianmarco Pradel takes third, starting from P20