S. Yingcharoenkarnchang Gym was founded in 2011 by Mr. Sakon Chaichimplee, known in the Muay Thai world as

Pa Lor Harley. The gym is home to many well-known fighters such as Sornngern S. Yingcharoenkarnchang,

Sorntong S. Yingcharoenkarnchang, Laopi S. Yingcharoenkarnchang, Paetsanlek S. Yingcharoenkarnchang, and many others. Pa Lor has been deeply involved in the Muay Thai scene, especially in the Central Region of Thailand, and has played a key role in launching the careers of many fighters who have gone on to achieve national success.

After relocating to Chiang Mai, Pa Lor established the Chiang Mai Boxing Stadium as a base for nurturing rural fighters and helping them reach the national stage in Bangkok's major stadiums.

      Today, S. Yingcharoenkarnchang Gym has seen rapid growth, with a rising number of promising young fighters and new trainees joining its ranks. This growth reflects both the gym’s development and Pa Lor’s vision of encouraging children and youth to spend their free time practicing Muay Thai—a traditional Thai martial art that not only promotes cultural heritage but also serves as a form of exercise. Fighters under the gym's care have regular match schedules, providing them with a way to earn a living and support their families. Each boxer is trained one-on-one by experienced trainers, receiving rigorous instruction to develop their skills and unlock their potential. Once they are ready, Pa Lor sends them to compete on the big stages in Bangkok to earn titles and rise to professional stardom.

The Chiang Mai Boxing Stadium, established by Pa Lor, stands out as the largest and most modernized stadium in Northern Thailand—on par with major venues in Bangkok. It has received great reviews and feedback from visitors.

       It is also the only stadium in Chiang Mai to have been selected as the venue for the prestigious "Poon 5" (Top Fighter Selection Tournament) for five consecutive years. The stadium continues its mission of promoting skilled fighters to compete in top-level events such as Poon Suea, Muay Thai 7 Colors, Kiatpetch Muay Thai, Super Champ, Chao Muay Thai, ONE Championship, ONE Lumpinee, and Muay Dee Withi Thai.

       S. Yingcharoenkarnchang Gym is managed by Sakon Chaichimplee, with Uthis Mangka serving as head trainer. The gym is located in Chiang Mai and is proud to have produced fighters who have succeeded both nationally and internationally, such as Kaichon, Maisangngoen, Maisangkhum, and Korpai S. Yingcharoenkarnchang.