';
NEWS
▼
FEATURES
▼
FIGHT FINDER
▼
PODCASTS
▼
VIDEOS
RANKINGS
▼
FORUM
▼
BOXING
MORE
▼
FIGHT ODDS
UFC NEWS
PFL NEWS
WOMEN'S MMA NEWS
PREVIEWS
OPINION
INTERVIEWS
UFC EVENTS
PFL EVENTS
FULL CALENDAR
FIGHT FINDER GUIDE
SHILLAN & DUFFY PODCAST
THE SHEEHAN SHOW
AFTER THE BELL
CHECK THE KICK
DIVISIONAL RANKINGS
POUND-FOR-POUND RANKINGS
WOMEN'S POUND-FOR-POUND RANKINGS
UFC DISCUSSION
WORLDWIDE MMA DISCUSSION
OFF TOPIC DISCUSSION
PHOTOSHOPS
PICTURES
HOW TO WATCH
CONTACT
+
NEWS
UFC NEWS
PFL NEWS
WOMEN'S MMA NEWS
+
FEATURES
PREVIEWS
OPINION
INTERVIEWS
+
FIGHT FINDER
UFC EVENTS
PFL EVENTS
FULL CALENDAR
FIGHT FINDER GUIDE
+
PODCASTS
SHILLAN & DUFFY PODCAST
THE SHEEHAN SHOW
AFTER THE BELL
CHECK THE KICK
VIDEOS
+
RANKINGS
DIVISIONAL RANKINGS
POUND-FOR-POUND RANKINGS
WOMEN'S POUND-FOR-POUND RANKINGS
+
FORUM
UFC DISCUSSION
WORLDWIDE MMA DISCUSSION
OFF TOPIC DISCUSSION
PHOTOSHOPS
BOXING
+
MORE
PICTURES
HOW TO WATCH
CONTACT
FIGHT ODDS
MORE FROM OUR CHANNELS
Japan
Ninomiya, Tochigi
Seiki Ryo
AGE
48
/
Oct 21, 1976
HEIGHT
6'0"
/
182.88 cm
WEIGHT
169 lbs
/
76.66 kg
ASSOCIATION
Stand
CLASS
Welterweight
Wins
9
KO
/
TKO
5
56%
SUBMISSIONS
3
33%
DECISIONS
1
11%
Draws
3
Losses
9
KO
/
TKO
2
22%
SUBMISSIONS
1
11%
DECISIONS
6
67%
N/C
2
FIGHT HISTORY - PRO
Result
Fighter
Event
Method/
Referee
R
Time
NC
Gota Yamashita
Pancrase - Progress Tour 10
Sep / 01 / 2012
NC (Leg Injury)
Ryogaku Wada
1
1:45
win
Junya Nishikawa
Pancrase - Progress Tour 3
Mar / 11 / 2012
TKO (Punches)
Ryogaku Wada
2
3:47
loss
Shingo Suzuki
Pancrase - Impressive Tour 3
Apr / 03 / 2011
KO (Punch)
Ryogaku Wada
1
0:45
win
Daisuke Watanabe
Pancrase - Passion Tour 11
Dec / 05 / 2010
TKO (Punches)
Yoshinori Umeki
1
0:23
draw
Kiichi Kunimoto
Pancrase - Passion Tour 7
Aug / 08 / 2010
Draw (Unanimous)
Kenji Kosuge
2
5:00
NC
Masahiro Toryu
Pancrase - Changing Tour 2
Apr / 05 / 2009
No Contest (Accidental Groin Kick)
Kenji Kosuge
1
4:40
loss
Takuya Wada
Pancrase - Rising 9
Nov / 28 / 2007
Decision (Unanimous)
Ryogaku Wada
2
5:00
loss
Myung Ho Bae
MARS 8 - Burning Red
Jul / 20 / 2007
Decision (Unanimous)
2
5:00
draw
Asaki Honda
Pancrase - Rising 3
Mar / 18 / 2007
Draw (Majority)
Yoshinori Umeki
2
5:00
loss
Ryuichi Murata
Deep - clubDeep Nagoya: MB3z Impact, Di Entrare
May / 21 / 2006
Decision (Unanimous)
2
5:00
loss
Izuru Takeuchi
Pancrase - Brave 11
Nov / 26 / 2004
TKO (Shoulder Injury)
Soichi Hiroto
1
5:00
draw
Hidehiko Hasegawa
Pancrase - Brave 3
Mar / 29 / 2004
Draw (Unanimous)
Hiromi Okamoto
2
5:00
loss
Tetsuya Onose
Zst - The Battlefield 2
Mar / 09 / 2003
Decision (Split)
2
5:00
loss
Nate Marquardt
Pancrase - 2002 Neo-Blood Tournament Second Round
Jul / 28 / 2002
Technical Submission (Armbar)
Hiromi Okamoto
1
1:37
loss
Ryuki Ueyama
Deep - 5th Impact
Jun / 09 / 2002
Decision (Majority)
2
5:00
loss
Kazuo Misaki
Pancrase - 2001 Neo-Blood Tournament Second Round
Jul / 29 / 2001
Decision (Split)
Yoshinori Umeki
3
5:00
win
Yohei Ota
Pancrase - 2001 Neo-Blood Tournament Opening Round
Jul / 29 / 2001
Decision (Unanimous)
Yoshinori Umeki
3
5:00
win
Yukihiro Kanazawa
Pancrase - 2001 Neo-Blood Tournament Eliminations
May / 05 / 2001
KO (Punch)
Yoshinori Umeki
2
4:05
win
Toshiya Fujii
Club Fight - Club Fight Osaka
Jan / 27 / 2001
Submission (Rear Naked Choke)
1
0:00
win
Naoto Ichikawa
TFC - Titan Fighting Championship 1
Sep / 29 / 2000
Submission (Kimura)
1
3:43
win
Toru Uda
TFC - Titan Fighting Championship 1
Sep / 29 / 2000
Submission (Rear-Naked Choke)
3
0:54
win
Young Choi
TFC - Titan Fighting Championship 1
Sep / 29 / 2000
TKO
1
0:33
win
Hidenobu Koike
TFC - Titan Fighting Championship 1
Sep / 29 / 2000
TKO (Punches)
1
1:40
PICTURES
SEIKI RYO RELATED NEWS
Pictures: Pancrase 'Impressive Tour 3'
Mei Yamaguchi
topped “Windy”
Tomomi Sunaba
in
Pancrase
’s first ever female main event on April 3. Taro Irei was on hand at Tokyo’s Differ Ariake to photograph “...
SHERDOG
Apr 09, 2011
Shimizu, Kawamura Retain Titles; Fujii Takes Kondo’s Crown
Kiyotaka Shimizu (left) vs. Mitsuhisa Sunabe: Taro Irei | Sherdog.com TOKYO -- Pancrase wrapped up its 2010 Passion Tour with a...
Tony Loiseleur
Dec 05, 2010
Subscribe to our Newsletter
*
indicates required
Email Address
*
Latest News
ALL
UFC
PFL
J.P. Saint Louis Emboldened by Successful PFL Debut: ‘I’m the Real Deal’
2023 PFL Finalist Joshua Silveira Trying to Maximize Experiences as Fighter, Parent
Virna Jandiroba to Rematch Mackenzie Dern at UFC 321 for Vacant 115-Pound Strap
UFC 322 Update: Former Welterweight Champ to Face Fighting Nerds Staple
Weili Zhang Vacates Belt, Moves Up to Challenge Valentina Shevchenko at UFC 322
Jack Della Maddalena vs. Islam Makhachev to Headline UFC 322 in NYC
Hernandez-Ferreira Swapped In for Scuttled Bantamweight Co-Main at Noche UFC
Impa Kasanganay ‘Definitely Down’ to Test Rising PFL Star Thad Jean at 170
Virna Jandiroba to Rematch Mackenzie Dern at UFC 321 for Vacant 115-Pound Strap
UFC 322 Update: Former Welterweight Champ to Face Fighting Nerds Staple
Weili Zhang Vacates Belt, Moves Up to Challenge Valentina Shevchenko at UFC 322
Jack Della Maddalena vs. Islam Makhachev to Headline UFC 322 in NYC
Hernandez-Ferreira Swapped In for Scuttled Bantamweight Co-Main at Noche UFC
Oliveira’s Coach Dismisses Rio Retirement Rumors: 'Next 3 Fights Are Pre-Negotiated'
Ranked Bantamweights to Clash at UFC Fight Night Event on Nov. 8
'Rampage' Jackson Says He’s Received Death Threats After Son’s Attack on Wrestler
J.P. Saint Louis Emboldened by Successful PFL Debut: ‘I’m the Real Deal’
2023 PFL Finalist Joshua Silveira Trying to Maximize Experiences as Fighter, Parent
Impa Kasanganay ‘Definitely Down’ to Test Rising PFL Star Thad Jean at 170
Vadim Nemkov Inks Exclusive, Multi-Year Deal to Remain with PFL
Co-Main Event Announced for PFL Europe 3 on Sept. 26
Antonio Carlos Jr. Reflects on Run Through PFL Light Heavyweight Tournament
Corey Anderson Claims UFC Denied Title Shot Due to Limited Social Media Presence
PFL Africa Semifinals Set for Rwanda on Oct. 18
EVENTS / FIGHTS
UFC
PFL
MORE
Sep
06
2025
UFC Fight Night 258
Imavov vs. Borralho
Sep
13
2025
UFC Fight Night 259
Noche UFC: Lopes vs. Silva
Sep
27
2025
UFC Fight Night 260
Ulberg vs. Reyes
Oct
04
2025
UFC 320
Ankalaev vs. Pereira 2
Oct
11
2025
UFC Fight Night 261
Oliveira vs. Fiziev
Sep
26
2025
Professional Fighters League
PFL Europe 3: 2025 Playoffs
Sep
27
2025
Professional Fighters League
PFL MENA 3: 2025 Semifinals
Oct
03
2025
Professional Fighters League
PFL Road to Dubai Champions Series 3: Nurmagomedov vs. Hughes 2
Oct
18
2025
Professional Fighters League
PFL Africa 3: 2025 Semifinals
Nov
28
2025
Professional Fighters League
PFL MENA 4: 2025 Finals
+
MORE UFC FIGHTS
+
MORE PFL FIGHTS
POLL
What did you think of referee Marc Goddard's standups in the UFC 319 main event?
Great calls by Goddard
Pathetic meddling
I'm ambivalent
Great calls by Goddard
42%
Pathetic meddling
36%
I'm ambivalent
23%
TOTAL: 592 VOTES
{firstname} { "nickname" }{lastname}
{firstname} { "nickname" }{lastname}
{name} - {title}
FIGHT FINDER
FIGHTER OF THE WEEK
Fabian Edwards
TOP TRENDING FIGHTERS
Khamzat Chimaev
Dalton Rosta
Lerone Murphy
Antonio Carlos Jr.
MORE FIGHTERS...
Carlos Prates
|
Sullivan Cauley
|
Baysangur Susurkaev
|
Alexander Romanov
|
Michal Oleksiejczuk
|
Oleg Popov
+
FIND MORE