Kwanthai Sithmorseng (50-8-1, 27) was born in Palian District, Trang Province on October 18, 1984. At the age of 20 years on June 28, 2005, he made his professional boxing debut against Nakhon Muensa, losing the fight via 6-round points decision.
On his 30th career fight at 26 years old, Sithmorseng became a strawweight world champion on November 5, 2010 after defeating Wicha Phulaikhao via 12-round split decision to win the vacant WBA title.
Sithmorseng's last fight was a 3rd-round retirement loss to Srisaket Sor Rungvisai at age 36 on March 12, 2021. He retired from the sport of boxing following this loss.
Some of Kwanthai Sithmorseng's best fights were against Zhang Yuan Boau, Adisak Polkratok and Hengky Elleuw. For details about these fights refer to "Best fights of Kwanthai Sithmorseng".
Sithmorseng has 8 losses on his boxing record. For details about these losses refer to "Kwanthai Sithmorseng Losses".
| # | Date | Opponent | Weight | Round | Method | Result |
|---|---|---|---|---|---|---|
59  | Mar 12, 2021 36 years, 4 months 50-8-1 (27) | 34 years, 3 months 49-5-1 (42) | 3 | RTD | LOSS | |
58 | Dec 30, 2020 36 years, 2 months 50-7-1 (27) | Rattakorn Tassaworn | SFL | 3 | RTD | WIN |
57 | Jun 9, 2019 34 years, 7 months 49-7-1 (26) | Jayson Mama | 3 | TKO | LOSS | |
56 | May 9, 2019 34 years, 6 months 49-6-1 (26) | Mongkol Kaokrue | 6 | UD | WIN | |
55 | May 5, 2018 33 years, 6 months 48-6-1 (26) | Wulan Tuolehazi | 4 | TKO | LOSS | |
54 | Dec 3, 2017 33 years, 1 months 48-5-1 (26) | Masahiro Sakamoto | FL | 3 | KO | LOSS |
53 | May 23, 2017 32 years, 7 months 48-4-1 (26) | Petchroi Sor Visetkit | 3 | TKO | WIN | |
52  | May 6, 2015 30 years, 6 months 47-4-1 (25) | 28 years, 5 months 21-2-1 (8) | LFL | 8 | TKO | LOSS For WBA |
51 | Feb 6, 2015 30 years, 3 months 47-3-1 (25) | Ponidi | 2 | KO | WIN | |
50 | Dec 23, 2014 30 years, 2 months 46-3-1 (24) | Heri Amol | 6 | PTS | WIN | |
49 | Oct 3, 2014 29 years, 11 months 45-3-1 (24) | Saentawee Sor Ponsaming | 2 | KO | WIN | |
48 | Aug 8, 2014 29 years, 9 months 44-3-1 (23) | Stamp Kiatniwat | FL | 12 | UD | LOSS Interim |
47 | May 1, 2014 29 years, 6 months 44-2-1 (23) | Samuel Tehuayo | 6 | UD | WIN | |
46 | Apr 4, 2014 29 years, 5 months 43-2-1 (23) | Demsi | 1 | KO | WIN | |
45 | Jan 17, 2014 29 years, 2 months 42-2-1 (22) | Safwan Lombok | 4 | TKO | WIN | |
44  | Sep 11, 2013 28 years, 10 months 41-2-1 (21) | 24 years, 5 months 12-0 (8) | LFL | 7 | KO | LOSS For WBA |
43 | Jul 5, 2013 28 years, 8 months 41-1-1 (21) | Madit Sada | ST | 5 | TKO | WIN |
42 | May 28, 2013 28 years, 7 months 40-1-1 (20) | Luinika Rodolfo | 4 | TKO | WIN | |
41 | Apr 18, 2013 28 years, 6 months 39-1-1 (19) | Unknown | 6 | PTS | WIN | |
40 | Feb 12, 2013 28 years, 3 months 38-1-1 (19) | Samuel Tehuayo | 6 | PTS | WIN | |
39 | Dec 21, 2012 28 years, 2 months 37-1-1 (19) | Modin Khadaffi | 6 | PTS | WIN | |
38 | Nov 13, 2012 28 years 36-1-1 (19) | Ical Tobida | 6 | UD | WIN | |
37 | May 22, 2012 27 years, 7 months 35-1-1 (19) | Hengky Elleuw | ST | 2 | TKO | WIN |
36 | Apr 2, 2012 27 years, 5 months 34-1-1 (18) | Domi Nenokeba | ST | 5 | TKO | WIN |
35 | Feb 28, 2012 27 years, 4 months 33-1-1 (17) | Jack Amisa | 6 | UD | WIN | |
34 | Jan 24, 2012 27 years, 3 months 32-1-1 (17) | Johan Wahyudi | 3 | TKO | WIN | |
33 | Nov 29, 2011 27 years, 1 months 31-1-1 (16) | Safwan Lombok | 6 | PTS | WIN | |
32 | Aug 9, 2011 26 years, 9 months 30-1-1 (16) | Jack Amisa | 6 | PTS | WIN | |
31 | Apr 19, 2011 26 years, 6 months 29-1-1 (16) | Muhammad Rachman | ST | 9 | KO | LOSS Lost WBA |
30 | Nov 5, 2010 26 years 29-0-1 (16) | Wicha Phulaikhao | ST | 12 | SD | WIN Won WBA Vacant |
29 | Jul 13, 2010 25 years, 8 months 28-0-1 (16) | Ricky Manufoe | ST | 6 | TKO | WIN |
28 | Apr 27, 2010 25 years, 6 months 27-0-1 (15) | Ricky Manufoe | ST | 9 | TD | WIN |
27 | Jan 11, 2010 25 years, 2 months 26-0-1 (15) | Decky Putra | 4 | KO | WIN | |
26 | Nov 4, 2009 25 years 25-0-1 (14) | Johan Wahyudi | 3 | KO | WIN | |
25 | Sep 8, 2009 24 years, 10 months 24-0-1 (13) | Donny Mabao | ST | 11 | MD | WIN |
24 | Jul 21, 2009 24 years, 9 months 23-0-1 (13) | Boy Tanto | ST | 5 | KO | WIN |
23 | Jun 19, 2009 24 years, 8 months 22-0-1 (12) | Yanus Emaury | 6 | PTS | WIN | |
22 | Apr 30, 2009 24 years, 6 months 21-0-1 (12) | Little Roseman | ST | 4 | KO | WIN |
21 | Feb 4, 2009 24 years, 3 months 20-0-1 (11) | Agus Situmorang | ST | 3 | KO | WIN |
20 | Aug 29, 2008 23 years, 10 months 19-0-1 (10) | Jack Amisa | ST | 11 | UD | WIN |
19 | Apr 29, 2008 23 years, 6 months 18-0-1 (10) | Zhang Yuan Boau | ST | 1 | TKO | WIN |
18 | Feb 19, 2008 23 years, 4 months 17-0-1 (9) | Mating Kilakil | ST | 11 | UD | WIN |
17 | Dec 28, 2007 23 years, 2 months 16-0-1 (9) | Sofyan Effendi | ST | 12 | UD | WIN |
16 | Nov 1, 2007 23 years 15-0-1 (9) | Adisak Polkratok | ST | 2 | KO | WIN |
15 | Jul 18, 2007 22 years, 9 months 14-0-1 (8) | Santi Siththongjan | 2 | KO | WIN | |
14 | Apr 30, 2007 22 years, 6 months 13-0-1 (7) | Pieter Nesi | 6 | PTS | WIN | |
13 | Feb 27, 2007 22 years, 4 months 12-0-1 (7) | Michael Rodriguez | 2 | KO | WIN | |
12 | Oct 23, 2006 22 years 11-0-1 (6) | Ryan Bito | 6 | UD | WIN | |
11 | Sep 8, 2006 21 years, 10 months 10-0-1 (6) | Michael Collondo | 6 | PTS | WIN | |
10 | Jul 31, 2006 21 years, 9 months 9-0-1 (6) | Luinika Rodolfo | 4 | KO | WIN | |
9 | Apr 26, 2006 21 years, 6 months 8-0-1 (5) | Vinai Wor Surapol | 6 | PTS | WIN | |
8 | Jan 27, 2006 21 years, 3 months 7-0-1 (5) | Jadsada Polyiam | 6 | PTS | WIN | |
7 | Dec 22, 2005 21 years, 2 months 6-0-1 (5) | Khamhaeng Phanmee | 6 | PTS | WIN | |
6 | Nov 16, 2005 21 years 5-0-1 (5) | Kiatisak Kiatisaktanee | 3 | KO | WIN | |
5 | Oct 31, 2005 21 years 4-0-1 (4) | Ekkalak Suksawat | 3 | TKO | WIN | |
4 | Sep 21, 2005 20 years, 11 months 3-0-1 (3) | Adisak Polkratok | 3 | TKO | WIN | |
3 | Aug 31, 2005 20 years, 10 months 2-0-1 (2) | Poonsawat Nimitchai | 1 | KO | WIN | |
2 | Jul 25, 2005 20 years, 9 months 1-0-1 (1) | Ongkaraknoi Jittigym | 3 | KO | WIN | |
1 | Jun 28, 2005 20 years, 8 months 0-0-1 (0) | Nakhon Muensa | 6 | PTS | DRAW |
