Kru Jack (Kasemsan Utachi) brings a rare combination of elite athletic experience and genuine teaching skill to every swim lesson. A former Thailand national team swimmer, he represented the country at two Asian Games — the 1994 Hiroshima Asian Games and the 1998 Bangkok Asian Games — competing at the highest level of the sport before turning his focus to coaching.

Kru Jack holds a Bachelor’s degree in Education from Ramkhamhaeng University and has spent more than 10 years teaching swimming, both at the Sports Authority of Thailand (SAT) and at private pools around Bangkok. He is a certified lifeguard, giving parents extra peace of mind that safety comes first in every class. Beyond the pool, Kru Jack also trained and competed in baseball in Japan for two years — a reminder of the same discipline and competitive spirit he brings to coaching.

With an athlete’s precision and a teacher’s patience, Kru Jack helps children build real swimming skills and confidence in the water — the kind that only comes from someone who’s competed at the top level himself.