Mayuko Oka

Early career

Oka began skating at six years of age in 2015, she trained with Mami Yamada in her early career before switching to Kinoshita Academy.^[3]

On the advanced novice level, she is the 2023 national silver medalist and based on this result Oka was invited to compete at 2022-23 Japan Junior Championships where she finished 15th.^[4]

Following Season, Oka made her Junior Debut Domestically and placed 9th at 2023-24 Japan Junior Championships.

2024–2025 season

Oka finished 7th at 2024-25 Japanese Junior Championships and 16th at 2024-25 Japan Championships.^[5]In January, Mayuko finished 2nd at the Japan Winter Sport Festival.^[6]

2025–2026 season: International debut, World Junior bronze medalist

Mayuko debuted internationally at the 2025 Junior Grand Prix in Turkey where she won the gold medal at her Grand Prix debut, furthermore, earning her technical minimums required for the World Junior Championships.^[7] A month later, she placed 2nd and won the silver medal at the 2025 Junior Grand Prix in Azerbaijan.^[8] These two medals garnered Oka enough points to qualify for the 2025-26 Junior Grand Prix Final in December.^[9]

Oka competed at the 2025-26 Japanese Junior Championships in November 2025. She placed 8th in the short program segment and 1st in the free skate after landing a successful Triple Axel, finishing the event in 2nd overall and earning the silver medal.^[10][11]

In December, Mayuko finished in 3rd in the short program at the 2025-26 Grand Prix Final, she dropped to 6th overall after falling on her triple Axel attempt and underrotating her triple-triple jump combination in the Free Skate.^[12] Just two weeks later, she competed at the senior national championships where she placed 6th overall after landing two successful Triple Axels in both Segments.^[13]

Oka made her World Junior championship debut at the 2026 World Junior Championships in Tallinn, Estonia. She achieved a personal best score in the short program segment and placed 2nd, accumulating 69.77 points. After her short program she shared with media, “I wasn’t super nervous for my debut at Junior Worlds. I was determined to perform with a strong mindset and I wanted to achieve my personal best, and I was able to do that by one point, so I’m very, very happy about it.”.^[14] In the free skate, Mayuko finished in 4th place after falling on her Triple Axel and errors on her Triple Lutz. Her combined scores led her to finish in 3rd place overall and win the bronze medal behind Hana Bath and training mate, Mao Shimada.^[15] “I had some mistakes on my jumps, but I was able to enjoy my performance until the end. I was able to stay calm and focused. This was my first Junior Worlds, so my goal was to give it my all and constantly challenge myself to improve. I realised that focusing on my own performance was the most important thing" she shares.^[16]