# Stamp Kiatniwat

Yutthana Kaensa (Thai: ยุทธนา แก่นสา, born 7 January 1998), known as Stamp Kiatniwat (แสตมป์ เกียรตินิวัฒน์), Stamp Sithmorseng (แสตมป์ ศิษย์หมอเส็ง), or Stamp Kratingdaenggym (แสตมป์ กระทิงแดงยิม), is a professional boxer from Thailand in the flyweight division. He was considered the youngest Thai world champion at the age of 17 (although he is an interim champion). He is a former WBA Asia Flyweight champion.

## Biography and career

Yutthana Kaensa, nicknamed Stamp, was born in Lao Suea Kok District), Mueang Ubon Ratchathani District, Ubon Ratchathani province, and is a cousin of Poonsawat Kratingdaenggym, a former WBA Super bantamweight world champion.
He won the WPBF Light flyweight title by wins over fellow-countryman Kwanthai Sithmorseng, a former WBA Minimumweight world champion on August 8, 2014, at Sanam Luang, Phra Nakhon District, Bangkok, and on September 23 of the same year he won the WBA Asia Flyweight title by wins over Samuel Tehuayo, an Indonesian boxer at Ayutthaya City Park, Ayutthaya province. He defended his title twice.
On July 29, 2015, he won the WBA Flyweight interim title by wins over Gregorio Lebron, a Dominican contender at Loei province and he defended it once with the old rival Gregorio Lebron at Bangkokthonburi University, Thawi Watthana District, Bangkok, on February 9, 2016.
On December 31, 2016, he challenged WBA Flyweight world title Kazuto Ioka, a Japanese holder in the elimination fight at Shimazu Arena, Kyoto, Japan. He lost by TKO in the seventh round.
He usually trains at the boxing gym inside Bangkokthonburi University with Anant Tualue, who was a trainer of Chana Porpaoin, a former two-time WBA Minimumweight world champion, and Denkaosan Kaovichit, a former WBA Flyweight world champion and former WBA Super flyweight interim champion be a trainer.
On May 18, 2018, Kiatniwat defeated TKO with left punches just the second round for the Filipino contender Jaysever Abcede at Bangkokthonburi University to lose WBA Asia Flyweight title. After the bout his manager Niwat "Che-Mae" Laosuwanwat said he would stop cheering him on to become a champion. Due to the fact that his body is too fragile.

## Professional boxing record

| 29 fights | 24 wins | 5 losses |
| By knockout | 10 | 4 |
| By decision | 14 | 1 |
| No. | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
| 29 | Loss | 24–5 | Lü Bin | TKO | 1 (10), 1:39 | 16 Mar 2023 | Yongkang Sports Center, Yongkang, Zhejiang, China | For vacant WBA International super-flyweight title |
| 28 | Win | 24–4 | Daeloniel McDelon | UD | 10 | 5 Nov 2022 | Spaceplus Bangkok RCA, Bangkok, Thailand | Retained ABF Continental bantamweight title |
| 27 | Win | 23–4 | Adisak Ketpiam | TKO | 4 (8) 1:31 | 3 Sep 2022 | Spaceplus Bangkok RCA, Bangkok, Thailand | Won vacant ABF Continental bantamweight title |
| 26 | Loas | 22–4 | F. Zoramchhana | MD | 6 | 2 Jul 2022 | Spaceplus Bangkok RCA, Bangkok, Thailand | |
| 25 | Win | 22–3 | Lekpetch Lookmhakrodyon111 | TKO | 2 (6) | 4 Jun 2022 | Suan Lum Night Bazaar Ratchadaphisek, Bangkok, Thailand | |
| 24 | Loss | 21–3 | Vyacheslav Mirzaev | TKO | 5 (10) 2:19 | 2 Mar 2019 | RGK Kapitan, Anapa, Russia | |
| 23 | Win | 21–2 | Rolly Sumalpong | UD | 12 | 10 Aug 2018 | Morseng Center, Samut Prakan, Thailand | Won vacant WBA Asia super-flyweight title |
| 22 | Loss | 20–2 | Jaysever Abcede | KO | 2 (12) 2:01 | 15 May 2018 | Bangkokthonburi University, Bangkok, Thailand | Lost WBA Asia flyweight title |
| 21 | Win | 20–1 | Macrea Gandionco | KO | 4 (12) 2:40 | 28 Dec 2017 | Bangkokthonburi University, Bangkok, Thailand | Retained WBA Asia flyweight title |
| 20 | Win | 19–1 | Michael Enriquez | UD | 12 | 22 Sep 2017 | Ayuthaya Night Bazzar, Ayutthaya, Thailand | Retained WBA Asia flyweight title |
| 19 | Win | 18–1 | Michael Enriquez | UD | 12 | 29 Jul 2017 | Bangkokthonburi University, Bangkok, Thailand | Won vacant WBA Asia flyweight title |
| 18 | Win | 17–1 | Rajesh | UD | 12 | 17 Mar 2017 | ThaUthen Subdistrict Municipality Office, Nakhon Phanom, Thailand | Retained PABA flyweight title |
| 17 | Loss | 16–1 | Kazuto Ioka | KO | 7 (12) 2:51 | 31 Dec 2016 | Shimazu Arena, Kyoto, Japan | For WBA flyweight title |
| 16 | Win | 16–0 | Gregorio Lebron | MD | 12 | 9 Sep 2016 | Bangkokthonburi University, Bangkok, Thailand | Retained WBA interim flyweight title |
| 15 | Win | 15–0 | Gregorio Lebron | MD | 12 | 29 Jul 2015 | Chiang Khan Police Station, Loei, Thailand | Won vacant WBA interim flyweight title |
| 14 | Win | 14–0 | Wilber Andogan | KO | 5 (12) | 23 Mar 2015 | The Society Ayutthaya Resort, Ayutthaya, Thailand | Retained PABA flyweight title |
| 13 | Win | 13–0 | Espinos Sabu | UD | 12 | 2 Jan 2015 | Kamkwan Seafood Restaurant, Bangkok, Thailand | Retained PABA flyweight title |
| 12 | Win | 12–0 | Geboi Mansalayao | KO | 2 (12) | 5 Dec 2014 | Sanam Luang, Bangkok, Thailand | Retained PABA flyweight title |
| 11 | Win | 11–0 | Samuel Tehuayo | UD | 12 | 23 Sep 2014 | Ayutthaya Park, Ayutthaya, Thailand | Won vacant PABA flyweight title |
| 10 | Win | 10–0 | Kwanthai Sithmorseng | UD | 12 | 8 Aug 2014 | Sanam Luang, Bangkok, Thailand | Won vacant WPMF light-flyweight title |
| 9 | Win | 9–0 | Johan Wahyudi | TKO | 4 (6) | 4 Jul 2014 | Provincial Stadium, Phichit, Thailand | |
| 8 | Win | 8–0 | Safwan Lombok | UD | 6 | 1 May 2014 | Klangwieng, Phayao, Thailand | |
| 7 | Win | 7–0 | Petchsuksawat Kiatphompetch | TKO | 2 (6) | 21 Mar 2014 | Bueng Kan, Thailand | |
| 6 | Win | 6–0 | Dawut Manoproonroj | TKO | 4 (6) 0:35 | 17 Jan 2014 | Watsingmatayon School, Bangkok, Thailand | |
| 5 | Win | 5–0 | John Bima | TKO | 1 (6) | 26 Nov 2013 | Lawoe Technology School, Lopburi, Thailand | |
| 4 | Win | 4–0 | Phompetch Kilasportsgym | PTS | 6 | 17 Sep 2013 | Bangkokthonburi University, Bangkok, Thailand | |
| 3 | Win | 3–0 | Auto Golf Snooker | PTS | 6 | 23 Aug 2013 | Siam Amazing Park, Bangkok, Thailand | |
| 2 | Win | 2–0 | Petchprakaifa Sor Visetkit | TKO | 1 (6) | 28 May 2013 | Wat Phrasaeng, Surat Thani, Thailand | |
| 1 | Win | 1–0 | Jaokhumphol Kaolanlek Gym | PTS | 6 | 18 Apr 2013 | Ayutthaya Park, Ayutthaya, Thailand | |