Ultimate Fighting Calendar
Fighter

Seigo Mizuguchi

"Mr. Megaton"
17-26-0JapanJapanLast 5
Amateur MMA 1-0pro-valetudo 0-1
NEXT FIGHT

No upcoming fight scheduled.

CAREER SUMMARY

Seigo Mizuguchi holds a professional MMA record of 17-26-0. Their full professional MMA career spans 43 bouts on record. Seigo Mizuguchi has won 17 fights: 8 by KO/TKO, 0 by submission, 9 by decision. Of 26 career losses, 17 came by KO/TKO and 0 by submission. Seigo Mizuguchi also has 1 recorded valetudo bout.

Profile

Height
5'10"178 cm
DOB
1975-10-28
Age
50
Nationality
Japan

Career history

  1. LOSS
    vs Naito
    DEEP 131 Impact· May 4, 2026· Super Heavyweight· 17-25 vs 0-0
    TKO
    R1 · 0:36
  2. WIN
    vs Buffalo
    DEEP 128 Impact· Nov 2, 2025· Super Heavyweight· 16-25 vs 0-0
    -
    R1 · 1:23
  3. WIN
    vs Chota Sakai
    DEEP 120 Impact· Jul 14, 2024· Super Heavyweight· 15-25 vs 0-1
    -
    R1 · 2:45
  4. LOSS
    vs Hirokazu Yokoyama
    DEEP 116 Impact· Nov 11, 2023· Super Heavyweight· 15-24 vs 4-4
    SD
  5. LOSS
    vs Hidenori Ebata
    DEEP 113 Impact· May 7, 2023· Super Heavyweight· 15-23 vs 0-0
    TKO
    R1 · 2:28
  6. WIN
    vs Kirihito Ando
    DEEP 111 Impact· Dec 11, 2022· Super Heavyweight· 14-23 vs 0-1
    TKO
    R2 · 4:46
  7. WIN
    vs Thomas
    DEEP 109 Impact· Aug 21, 2022· Super Heavyweight· 13-23 vs 0-1
    -
    R1 · 3:53
  8. LOSS
    vs Masashi Inada
    DEEP 107 Impact· May 8, 2022· Super Heavyweight· 13-22 vs 0-0
    TKO
    R1 · 4:58
  9. LOSS
    vs Tatsuya Mizuno
    DEEP 105 Impact· Dec 12, 2021· Super Heavyweight· 13-21 vs 22-14-1
    TKO
    R1 · 1:15
  10. LOSS
    vs Lawdlain Saint Ilme
    DEEP 103 Impact· Sep 23, 2021· Super Heavyweight· 13-20 vs 1-0
    UD
  11. LOSS
    vs Hidetaka Arato
    Grachan 47×Brave Fight 23· Apr 24, 2021· Super Heavyweight· 13-19 vs 2-0
    UD
  12. LOSS
    vs Hideki Sekine
    DEEP 100 IMPACT· Feb 21, 2021· Super Heavyweight· 13-18 vs 7-5
    TKO
    R1 · 0:16
  13. LOSS
    vs Roque Martinez
    DEEP 93 Impact· Dec 15, 2019· 13-17 vs 13-5-2
    TKO
    R2 · 2:09
  14. LOSS
    vs Ryo Sakai
    DEEP 86 Impact· Oct 27, 2018· 13-16 vs 7-7
    UD
  15. LOSS
    vs Kazuhiro Nakamura
    DEEP Cage Impact 2014· Jul 21, 2014· 13-15 vs 20-12
    TKO
    R2 · 3:25
  16. WIN
    vs Ryo Sakai
    DEEP 65 Impact· Mar 22, 2014· 12-15 vs 2-1
    TKO
    R1 · 2:31
  17. WIN
    vs Jong Wang Kim
    DEEP Cage Impact 2013· Nov 24, 2013· 11-15 vs 13-22
    TKO
    R1 · 1:31
  18. LOSS
    vs Jong Wang Kim
    DEEP Cage Impact 2013· Jun 15, 2013· 11-14 vs 12-22
    TKO
    R1 · 0:37
  19. LOSS
    vs Ken Hasegawa
    DEEP 61 Impact· Feb 16, 2013· 11-13 vs 7-0
    UD
  20. LOSS
    vs Hirohide Fujinuma
    DEEP Cage Impact 2012· Dec 8, 2012· Heavyweight· 11-12 vs 11-4-2
    TKO
    R2 · 4:15
  21. LOSS
    vs Jae Woong Yoon
    DEEP Osaka Impact 2012· Sep 29, 2012· Heavyweight· 11-11 vs 0-0
    UD
  22. WIN
    vs Atsushi Yamada
    DEEP 59 Impact· Aug 18, 2012· 10-11 vs 1-1
    UD
  23. WIN
    vs Jong Wang Kim
    Club DEEP: Barbarian Festival 10· Jun 24, 2012· 9-11 vs 11-21
    -
    R1 · 0:46
  24. LOSS
    vs Hirohide Fujinuma
    DEEP 57 Impact· Feb 18, 2012· 9-10 vs 10-4-2
    TKO
    R1 · 1:20
  25. WIN
    vs Chang Hee Kim
    Deep 56 Impact· Dec 16, 2011· 8-10 vs 0-2
    TKO
    R1 · 1:38
  26. LOSS
    vs Ken Hasegawa
    DEEP· Oct 29, 2011· 8-9 vs 4-0
    -
  27. LOSS
    vs Levan Razmadze
    Deep 54 Impact· Jun 24, 2011· 8-8 vs 2-0
    TKO
    R1 · 3:21
  28. WIN
    vs Mamoru Nakamura
    Deep 53 Impact· Apr 21, 2011· 7-8 vs 1-5
    TKO
    R1 · 0:53
  29. LOSS
    vs Hideki Sekine
    Deep 51 Impact· Dec 11, 2010· 7-7 vs 2-0
    TKO
    R2 · 2:38
  30. LOSS
    vs Kazuhisa Tazawa
    Deep 48 Impact· Jul 3, 2010· 7-6 vs 5-1-1
    TKO
    R1 · 0:49
  31. LOSS
    vs Baru Harn
    Astra: Yoshida's Farewell· Apr 25, 2010· Heavyweight· 7-5 vs 0-1
    UD
  32. WIN
    vs Ryota Kitamura
    Deep 45 Impact· Jan 24, 2010· 6-5 vs 0-0
    -
    R1 · 2:08
  33. LOSS
    vs Yusuke Kawaguchi
    Deep 44 Impact· Oct 10, 2009· 6-4 vs 9-1
    TKO
    R3 · 1:27
  34. WIN
    vs TBA
    DEEP· Jun 28, 2009· 5-4
    -
  35. WIN
    vs Katsumi Yamada
    Deep 41 Impact· Apr 16, 2009· 4-4 vs 2-2-1
    -
    R1 · 0:19
  36. WIN
    vs Ken Orihashi
    Deep: Protect Impact 2008· Dec 22, 2008· Heavyweight· 3-4 vs 8-6-4
    TKO
    R1 · 3:13
  37. LOSS
    vs Shunji Kosaka
    Deep 38 Impact· Oct 23, 2008· 3-3 vs 2-1
    TKO
    R1 · 3:30
  38. WIN
    vs Nobuyoshi Takahara
    Deep 36 Impact· Jul 27, 2008· 2-3 vs 1-1
    -
    R1 · 1:41
  39. LOSS
    vs Yusuke Kawaguchi
    Deep 32 Impact· Oct 10, 2007· 2-2 vs 2-0
    TKO
    R1 · 2:07
  40. LOSS
    vs Yusuke Sakashita
    Deep 30 Impact· Jul 8, 2007· 2-1 vs 2-1
    UD
  41. LOSS
    vs Minoru Kato
    Deep 27 Impact· Dec 20, 2006· 2-0 vs 0-3
    TKO
    R1 · 2:00
  42. WIN
    vs Takanori Kuno
    Deep 26 Impact· Oct 10, 2006· 1-0 vs 0-1
    TKO
    R1 · 0:57
  43. WIN
    vs Soichi Nishida
    DEEP· Jun 18, 2006· 0-0 vs 3-7-1
    TKO

Career history data via Tapology.

UFCalendar Power Index rating

Current
1449▼12
Peak
1578Oct 10, 2006
Rated fights
42
14501500155020072011201520192023Jun 18, 2006 · 1540Oct 10, 2006 · 1578Dec 20, 2006 · 1509Jul 8, 2007 · 1477Oct 10, 2007 · 1442Jul 27, 2008 · 1477Oct 23, 2008 · 1448Dec 22, 2008 · 1483Apr 16, 2009 · 1502Oct 10, 2009 · 1488Jan 24, 2010 · 1508Apr 25, 2010 · 1490Jul 3, 2010 · 1470Dec 11, 2010 · 1446Apr 21, 2011 · 1472Jun 24, 2011 · 1445Oct 29, 2011 · 1432Dec 16, 2011 · 1465Feb 18, 2012 · 1457Jun 24, 2012 · 1465Aug 18, 2012 · 1474Sep 29, 2012 · 1466Dec 8, 2012 · 1458Feb 16, 2013 · 1454Jun 15, 2013 · 1441Nov 24, 2013 · 1457Mar 22, 2014 · 1474Jul 21, 2014 · 1468Oct 27, 2018 · 1476Dec 15, 2019 · 1469Feb 21, 2021 · 1458Apr 24, 2021 · 1452Sep 23, 2021 · 1446Dec 12, 2021 · 1439May 8, 2022 · 1428Aug 21, 2022 · 1438Dec 11, 2022 · 1452May 7, 2023 · 1440Nov 11, 2023 · 1436Jul 14, 2024 · 1446Nov 2, 2025 · 1461May 4, 2026 · 14491449

See the full Power Index →

Frequently asked questions

When does Seigo Mizuguchi fight next?

Seigo Mizuguchi has no confirmed upcoming fight.

What is Seigo Mizuguchi's record?

Seigo Mizuguchi's professional MMA record is 17-26-0.

Who is Seigo Mizuguchi fighting next?

Seigo Mizuguchi's next opponent has not been announced.

How many knockouts does Seigo Mizuguchi have?

Seigo Mizuguchi has 8 wins by KO/TKO and 0 wins by submission.

How tall is Seigo Mizuguchi?

Seigo Mizuguchi is 5'10" (178 cm) tall.

How old is Seigo Mizuguchi?

Seigo Mizuguchi is 50 years old (born Oct 28, 1975).

Where is Seigo Mizuguchi from?

Seigo Mizuguchi is from Japan.