';
NEWS
▼
FEATURES
▼
FIGHT FINDER
▼
PODCASTS
▼
VIDEOS
RANKINGS
▼
FORUM
▼
BOXING
MORE
▼
FIGHT ODDS
PFL WORLD TOURNAMENT
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
PFL WORLD TOURNAMENT
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
Mateusz Gamrot Proposes Nickname Change for Benoit St. Denis
Arman Tsarukyan Willing to Be Backup Fighter for UFC 317, UFC 318 Main Events
Erin Blanchfield to Receive Show Purse, Win Bonus for UFC Vegas 107
Magomed Ankalaev Seeks New Challenge: Alex Pereira 'Never Coming Back'
Erin Blanchfield Reacts to Last-Minute Cancelation of UFC Vegas 107 Headliner
UFC Vegas 107 Bonuses: Brahimaj, Leavitt Get $50K for Submission Wins
Medical Issue Forces Maycee Barber’s Exit; Mateusz Gamrot Shines at UFC Vegas 107
UFC Vegas 107 ‘Blanchfield vs. Barber’ Play-by-Play, Results & Round Scoring
Mateusz Gamrot Proposes Nickname Change for Benoit St. Denis
Arman Tsarukyan Willing to Be Backup Fighter for UFC 317, UFC 318 Main Events
Erin Blanchfield to Receive Show Purse, Win Bonus for UFC Vegas 107
Magomed Ankalaev Seeks New Challenge: Alex Pereira 'Never Coming Back'
Erin Blanchfield Reacts to Last-Minute Cancelation of UFC Vegas 107 Headliner
UFC Vegas 107 Bonuses: Brahimaj, Leavitt Get $50K for Submission Wins
Medical Issue Forces Maycee Barber’s Exit; Mateusz Gamrot Shines at UFC Vegas 107
UFC Vegas 107 ‘Blanchfield vs. Barber’ Play-by-Play, Results & Round Scoring
PFL Brussels Adds Bantamweight Tourney, Habirora-Roberts Headliner
Kevin Lee Joins PFL Roster, Gets Spot in Lightweight Semifinals
Pivotal Bouts Added to July 19’s PFL Africa Champions Series Event
Professional Fighters League Updates July’s 2025 PFL Europe 2 Lineup
PFL Africa, Champions Series Events Rescheduled for July 19
Claressa Shields Says She’s 'Done' with MMA
PFL Announces Full Chicago Lineup in June; Adds Sergio Pettis-Raufeon Stots
Full Card Announced for PFL World Tournament 6 in Wichita
EVENTS / FIGHTS
UFC
PFL
MORE
May
31
2025
UFC on ESPN 68
Blanchfield vs. Barber
Jun
07
2025
UFC 316
Dvalishvili vs. O'Malley 2
Jun
14
2025
UFC on ESPN 69
Usman vs. Buckley
Jun
21
2025
UFC on ABC 8
Hill vs. Rountree
Jun
28
2025
UFC 317
Oliveira vs. Topuria
Jun
12
2025
Professional Fighters League
2025 PFL World Tournament 5: Semifinals
Jun
20
2025
Professional Fighters League
2025 PFL World Tournament 6: Semifinals
Jun
27
2025
Professional Fighters League
2025 PFL World Tournament 7: Semifinals
Jul
04
2025
Professional Fighters League
PFL MENA 2: 2025 First Round
Jul
05
2025
Professional Fighters League
PFL Europe 2: 2025 First Round
+
MORE UFC FIGHTS
+
MORE PFL FIGHTS
POLL
Should Jon Jones be stripped of his UFC heavyweight title for ducking Tom Aspinall?
Yes
No
I'm indifferent
Yes
85%
No
12%
I'm indifferent
3%
TOTAL: 384 VOTES
{firstname} { "nickname" }{lastname}
{firstname} { "nickname" }{lastname}
{name} - {title}
FIGHT FINDER
FIGHTER OF THE WEEK
Jesus Pinedo
TOP TRENDING FIGHTERS
Milos Janicic
Magomed Umalatov
Marko Bojkovic
Kendly St. Louis
MORE FIGHTERS...
Dusko Todorovic
|
Logan Storley
|
Erin Blanchfield
|
Adam Borics
|
Zachary Reese
|
Mukhamed Berkhamov
|
Igor Vovchanchyn
+
FIND MORE