Surachai Sukhanthong (; born November 16, 1970), known professionally as Kruekchai Kiatyongyut (), is a Thai former professional Muay Thai fighter. He is a former Lumpinee Stadium Light Flyweight Champion who was active during the 1980s and 1990s.
He trained at the Sor.Kettalingchan, Kiatyongyut, and Kaewsamrit gyms.
He fought during the Golden Era of Muay Thai against many notable fighters including Karuhat Sor.Supawan, Hippy Singmanee, Namkabuan Nongkeepahuyuth, Chatchai Paiseetong, Nungubon Sitlerchai, Jaroensap Kiatbanchong, Mathee Jadeepitak, Chandet Sor.Prantalay, Orono Por.MuangUbon, Sak Kaoponlek, Chainoi Muangsurin, Tukatathong Por.Pongsawang, and Pairojnoi Sor.Siamchai.
Since retiring from competition, he has worked as a police officer in Bangkok.
|- style="background:#fbb;" | 1995-06-30 || Loss||align=left| Jompoplek Sor.Sumalee || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1995-06-10 || Loss||align=left| Lamnamoon Sor.Sumalee || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1995-05-05 || Loss ||align=left| Saennapha Fairtex || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1995-04-10 || Win ||align=left| Silapin Thammachat || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1995-03-28 || Loss||align=left| Apiwat Por.Pleumkamol || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1995-02-13 || Loss ||align=left| Choengnoen Sitphutthapim || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1994-12-12 || Win||align=left| Thapisuj Sor.Maliwan || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1994-09-20 || Loss ||align=left| Nungubon Sitlerchai || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1994-08-01 || Loss ||align=left| Khunsuk Sunwelarewadee || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1994-05-30 || Win||align=left| Boonlong Sor.Thanikul || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1994-02-15 || Loss ||align=left| Kaoponglek Luksuratham || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1993-12-24 || Win ||align=left| Charoenwit Kiatbanchong || Lumpinee Stadium || Bangkok, Thailand || KO (Punches)|| 3 ||
|- style="background:#fbb;" | 1993-12-03 || Loss ||align=left| Peemai Or.Yutthanakorn || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00
|- style="background:#cfc;" | 1993-11-16 || Win ||align=left| Jaroensap Kiatbanchong || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1993-10-05 || Loss ||align=left| Jompoplek Sor.Sumalee || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00
|- style="background:#fbb;" | 1993-08-13 || Loss ||align=left| Kesemlek QualityGym || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00
|- style="background:#cfc;" | 1993-07-27 || Win||align=left| Jompoplek Sor.Sumalee || Onesongchai, Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1993-07-06 || Loss ||align=left| Tanongsak Sor.Prantalay || Lumpinee Stadium || Bangkok, Thailand ||Decision || 5 || 3:00
|- style="background:#fbb;" | 1993-05-07 || Loss ||align=left| Chatchai Paiseetong || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1992-12-29 || Loss ||align=left| Karuhat Sor.Supawan || Lumpinee Stadium || Bangkok, Thailand || TKO (Doctor stoppage) || 3 ||
|- style="background:#cfc;" | 1992-12-04 || Win ||align=left| Chainoi Muangsurin || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1992-11-06 || Win ||align=left| Singhao Tor.Hintok || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1992-02-05 || Loss||align=left| Jompoplek Sor.Sumalee || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-10-20 || Loss ||align=left| Chodchoi Chuchokchai|| || Phatthalung province, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-10-08 || Loss ||align=left| Saennapha Fairtex || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-09-07 || Loss ||align=left| Mathee Jadeepitak || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-05-04 || Loss||align=left| Panphet Muangsurin || Lumpinee Stadium || Bangkok, Thailand || KO (Punches)|| 1 ||
|- style="background:#fbb;" | 1991-04-18 || Loss ||align=left| Duangsompong Por.Pongsawang || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-03-13 || Loss ||align=left| Thanooin Chor.Cheuchart || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1991-02-12 || Win ||align=left| Chandet Sor.Prantalay || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#c5d2ea;" | 1991-01-25 || Draw ||align=left| Chandet Sor.Prantalay || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1991-01-04 || Loss ||align=left| Duangsompong Por.Pongsawang || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1990-08-31 || Win ||align=left| Tukatathong Por.Pongsawang || Lumpinee Stadium || Bangkok, Thailand || TKO (referee stoppage) || 1 || |- ! style=background:white colspan=9 |
|- style="background:#fbb;" | 1990-12-04 || Loss ||align=left| Pairojnoi Sor.Siamchai || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1990-09-28 || Loss ||align=left| Toto Por.Pongsawang || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1990-06-08 || Loss ||align=left| Pairojnoi Sor.Siamchai || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1990-05-15 || Win ||align=left| Singhao Tor.Hintok || Onesongchai, Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1990-03-19 || Loss ||align=left| Saengdao Kiatanan || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1990-02-24 || Win ||align=left| Hippy Singmanee || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1990-01-15 || Loss ||align=left| Orono Por.MuangUbon || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1989-11-03 || Loss ||align=left| Orono Por.MuangUbon || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1989-09-18 || Win ||align=left| Orono Por.MuangUbon || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#fbb;" | 1989-05-27 || Loss ||align=left| Namkabuan Nongkeepahuyuth || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1987-09-02 || Win ||align=left| Chaichan Technobangkapi || Rajadamnern Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- style="background:#cfc;" | 1987-04-07 || Win ||align=left| Khiaowannoi Sor.Kanokrat || Lumpinee Stadium || Bangkok, Thailand || Decision || 5 || 3:00
|- | colspan=9 | Legend: