Katsuyuki Nakasuga

Katsuyuki Nakasuga isn't a name most casual fans outside Japan would recognize, and honestly that feels a little unfair. This Fukuoka-born racer has dominated the All Japan Superbike Championship for years — racking up multiple JSB1000 titles in a way that makes him basically the undisputed king of domestic Japanese two-wheel racing. He's also been Yamaha's trusted test rider, which tells you everything about how much the factory respects his feedback and raw pace. He's popped up as a MotoGP wildcard at home races and held his own against full-season Grand Prix riders, which is quietly impressive. There's something I find compelling about a guy who operates mostly away from the global spotlight but keeps winning anyway — no fanfare, just lap times.

This take was written by generative AI, one per person, from publicly reported facts (editorial policy). It is a reading of the record, not reporting.

Katsuyuki Nakasuga is a Japanese motorcycle racer born on August 9, 1981, in Fukuoka Prefecture. Riding a factory Yamaha, he has won the All Japan Road Race Championship JSB1000 title ten times and four consecutive Suzuka 8 Hours from 2015, and has also served as Yamaha's MotoGP test rider.

Name (English)

Katsuyuki Nakasuga

Name (Japanese)

中須賀克行

Reading

なかすが かつゆき

Born

August 9, 1981 (age 45)

Origin

Fukuoka Prefecture, Japan

Occupation

Motorcycle Racer

Zodiac / Chinese zodiac

Leo / Rooster

• Xhttps://x.com/nakasugayamaha
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E4%B8%AD%E9%A0%88%E8%B3%80%E5%85%8B%E8%A1%8C
• Wikidatahttps://www.wikidata.org/wiki/Q2334030

Tags

• From Fukuoka Prefecture
• Motorcycle Racer

Last updated

September 26, 2026

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.