In 2017 and 2018, he competed in his first WSK events in the 60 Mini category. After a year in OK Junior karts, he was the 1st runner up in the 2019 German Junior Kart Championship with Ricky Flynn Motorsport.[5] He became runner-up to Kajus Siksnelis during the 2019 Karting Academy Trophy.[6] During that year he also took part in the 2019 Karting World Championship, in which he ranked 11th.[7] In 2020, he finished third in the WSK Champions Cup in the OK Junior category. He also took third place in the IAME Asia Cup, in the senior category.
In September 2021, Ho became the latest signing to Nicolas Todt’s All Road Management stable.[3]
Formula 4
Formula 4 UAE
Ho made his single-seater debut in the 2022 Formula 4 UAE Championship with MP Motorsport during the third weekend of the series, in preparation for his upcoming main campaign.[8] He finished tenth in his first race and two races later, in fifth. Two more tenth places saw him place 21st in the standings.
Spanish Formula 4
2022
Ho continued with MP Motorsport for the 2022 F4 Spanish Championship.[9] In the first race, he scored a point in tenth place.[10] His results improved towards the end of the season, scoring two fourth places and a fifth place. Ho ended the championship in 13th place with 50 points.
Ho remained in Spanish F4 for 2023, but switched to Campos Racing.[11] Ho emerged as a contender early on, taking a double podium in Spa-Francorchamps.[12] After a double pole the next round in Aragón, the win was taken away after a track limits penalty in the first race.[13] However, he redeemed himself with a commanding win in Race 2, taking his maiden single-seater victory.[14] Following that, Ho began a run of five podiums in a row starting from Jerez to Valencia, which included two poles.[15] He then took his second win in the Valencia final race.[16] He was at his best during the season finale in Barcelona, taking pole for all three races.[17][18] Ho dominated during the races, proceeding to take all three wins.[19][20][21] Ho finished the season as vice-champion, having taken five wins, seven poles and 291 points.
Ho was promoted to Eurocup-3 for 2024, remaining with Campos Racing.[22] A poor start to the season saw him with only a fourth place in the first two rounds.[23] However, he would claim his maiden wins in Portimão, although a suspension failure prevented a clean sweep.[24][25] He took the standings lead with two poles, a win and a podium in Paul Ricard.[26] However, despite two additional podiums in the next two rounds in Zandvoort and Aragón, title rival Javier Sagrera won thrice, leaving Ho losing the lead of the standings.[27][28] Ho won the first race in Jerez and a fifth in the second race left him an outside chance for the title, trailing Sagrera by 26 points.[29][30] However, Ho rebounded in the Barcelona finale with second in the first race and winning the second race.[31] This meant that Ho ended as vice-champion, losing out to Sagrera by two points, but due to results being currently appealed, a champion has yet to be crowned which could fall in Sagrera or Ho's favour.[32]
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