Guts_Jyonai

Masaki Jyonai

Masaki Jyonai

Japanese racing driver and businessman

Masaki Jyonai (城内 政樹, Jōnai Masaki, born 9 September 1962)[1] is a Japanese racing driver and businessman.

Quick Facts Nationality, Born ...

Racing career

Jyonai started karting in 1988; he is noted for his extensive experience in kart racing, having won numerous karting championships. He moved to car racing in 1993, racing in the Suzuka 1000 km in the Proto 2 class; he won on his debut.[2]

Jyonai began competing in Super GT in 1997 with the SigmaTec Racing Team. As of 2023, he has won two races;[2] his best finish in the championship is 5th, achieved in his first year in the series. Outside of racing, Jyonai is the CEO and President of Marusho Co. Ltd., a company involved in the lighting, security and construction sectors.[3] He is also a lecturer at the karting classes of Honda Racing School Suzuka as well as a color commentator for various television programs.

He occasionally competes using the pseudonym Guts Jyonai (Guts城内, Gattsu Jōnai);[2] Jyonai says he took the name from comedian Guts Ishimatsu. In more recent years he has reverted to using his real name.[1]

Racing record

Complete Super GT results

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

More information Year, Team ...

* Season still in progress.

References

  1. [1]
    "2023 城内 政樹". Super GT (in Japanese). Retrieved 27 June 2023.
  2. [2]
    "2006 Driver Information". Super GT (in Japanese). Retrieved 27 June 2023.
  3. [3]
    "メッセージ (代表 城内 政樹)". marusho-cl.com (in Japanese). Retrieved 27 June 2023.
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