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Fight Matrix
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Sachiko Yamamoto

  Sachiko Yamamoto's profile at Sherdog 

Sachiko Yamamoto's profile at Tapology 

Association: N/A
Pro Debut Date: 2005-09-03
Pro Record: 9-7-1
Win Finish %: 44.4%
Quality Perf. %: 41.2%
Last Ranked: 4/01/2012

#5 Women Atomweight

Highest Quarterly Ranking: 1/01/2012

#4 Women Atomweight
Last Loss Date: 5/26/2012
Last Loss: [NR] Sadae Numata

Complete Professional MMA Fight History
Fighter rankings represent most recent generated quarterly rating prior to the fight

  Opponent Outcome
L Sadae Numata Decision (Unanimous)
Round 2
  Jewels - 19th Ring
Saturday, May 26th 2012
W Yasuko Tamada
#4 Women Atomweight 		Decision (Split)
Round 2
  Jewels - 17th Ring
Saturday, December 17th 2011
L Yukiko Seki Decision (Unanimous)
Round 2
  Jewels - 16th Ring
Sunday, September 11th 2011
L Kikuyo Ishikawa
#12 Women Atomweight 		Decision (Unanimous)
Round 2
  Jewels - 15th Ring
Saturday, July 9th 2011
W Miyoko Kusaka Decision (Unanimous)
Round 2
  Jewels - 14th Ring
Saturday, May 14th 2011
W Maho Muranami
#6 Women Atomweight 		Submission (Armbar)
Round 2
  GCM - Valkyrie 3
Saturday, October 24th 2009
L Naoko Omuro
#5 Women Atomweight 		TKO (Punches and Knees)
Round 1
  GCM - Valkyrie 2
Saturday, April 25th 2009
W Kazumi Kaneko Technical Submission (Armbar)
Round 1
  Jewels - First Ring
Sunday, November 16th 2008
W Kayo Nagayasu
#7 Women Atomweight 		Submission (Armbar)
Round 2
  Deep - 34 Impact
Friday, February 22nd 2008
L Satoko Shinashi
#3 Women Atomweight 		Submission (Armbar)
Round 1
  Deep - 34 Impact
Friday, February 22nd 2008
L Satoko Shinashi
#3 Women Atomweight 		Submission (Straight Armbar)
Round 1
  Deep 32 Impact
Wednesday, October 10th 2007
W Yukiko Seki Decision (Unanimous)
Round 2
  Shooto - Battle Mix Tokyo 4
Friday, July 20th 2007
L Madoka Ebihara Decision (Unanimous)
Round 2
  Smackgirl - The Next Cinderella 2007 Secon...
Saturday, May 19th 2007
W Yuka Okumura Submission (Armbar)
Round 2
  Smackgirl - The Next Cinderella Tournament...
Sunday, March 11th 2007
W Wakako Sunayama Decision (Unanimous)
Round 2
  G-Shooto - G-Shooto Special03
Sunday, November 19th 2006
W Megumi Imagawa Decision (Majority)
Round 2
  G-Shooto - Wrestle Expo 2006
Saturday, August 19th 2006
D Taeko Nagamine Draw
Round 1
  SR - Spiritual Road 1st
Saturday, September 3rd 2005
  Opponent Event Outcome
L Sadae Numata   Jewels - 19th Ring
Saturday, May 26th 2012 		Decision (Unanimous)
Round 2
W Yasuko Tamada
#4 Women Atomweight 		  Jewels - 17th Ring
Saturday, December 17th 2011 		Decision (Split)
Round 2
L Yukiko Seki   Jewels - 16th Ring
Sunday, September 11th 2011 		Decision (Unanimous)
Round 2
L Kikuyo Ishikawa
#12 Women Atomweight 		  Jewels - 15th Ring
Saturday, July 9th 2011 		Decision (Unanimous)
Round 2
W Miyoko Kusaka   Jewels - 14th Ring
Saturday, May 14th 2011 		Decision (Unanimous)
Round 2
W Maho Muranami
#6 Women Atomweight 		  GCM - Valkyrie 3
Saturday, October 24th 2009 		Submission (Armbar)
Round 2
L Naoko Omuro
#5 Women Atomweight 		  GCM - Valkyrie 2
Saturday, April 25th 2009 		TKO (Punches and Knees)
Round 1
W Kazumi Kaneko   Jewels - First Ring
Sunday, November 16th 2008 		Technical Submission (Armbar)
Round 1
W Kayo Nagayasu
#7 Women Atomweight 		  Deep - 34 Impact
Friday, February 22nd 2008 		Submission (Armbar)
Round 2
L Satoko Shinashi
#3 Women Atomweight 		  Deep - 34 Impact
Friday, February 22nd 2008 		Submission (Armbar)
Round 1
L Satoko Shinashi
#3 Women Atomweight 		  Deep 32 Impact
Wednesday, October 10th 2007 		Submission (Straight Armbar)
Round 1
W Yukiko Seki   Shooto - Battle Mix Tokyo 4
Friday, July 20th 2007 		Decision (Unanimous)
Round 2
L Madoka Ebihara   Smackgirl - The Next Cinderella 2007 Secon...
Saturday, May 19th 2007 		Decision (Unanimous)
Round 2
W Yuka Okumura   Smackgirl - The Next Cinderella Tournament...
Sunday, March 11th 2007 		Submission (Armbar)
Round 2
W Wakako Sunayama   G-Shooto - G-Shooto Special03
Sunday, November 19th 2006 		Decision (Unanimous)
Round 2
W Megumi Imagawa   G-Shooto - Wrestle Expo 2006
Saturday, August 19th 2006 		Decision (Majority)
Round 2
D Taeko Nagamine   SR - Spiritual Road 1st
Saturday, September 3rd 2005 		Draw
Round 1

Quarterly Generated Historical Rankings
Rating bar represents the fighter's standing relative to the top of the division at the time

Date ↑ ↓ Rank Record Points
04/01/2012 1 #5 Women Atomweight 9-6-1
24
01/01/2012 9 #4 Women Atomweight 9-6-1
24
10/01/2011 8 #13 Women Atomweight 8-6-1
17
07/01/2011 NR #5 Women Atomweight 8-4-1
25
01/01/2011 2 #6 Women Atomweight 7-4-1
21
10/01/2010   #4 Women Atomweight 7-4-1
23
07/01/2010   #4 Women Atomweight 7-4-1
23
04/01/2010 1 #4 Women Atomweight 7-4-1
23
01/01/2010 2 #5 Women Atomweight 7-4-1
23
10/01/2009 1 #7 Women Atomweight 6-4-1
17
07/01/2009   #6 Women Atomweight 6-4-1
17
04/01/2009 1 #6 Women Atomweight 6-3-1
18
01/01/2009   #7 Women Atomweight 6-3-1
18
10/01/2008   #7 Women Atomweight 5-3-1
18
07/01/2008   #7 Women Atomweight 5-3-1
18
04/01/2008 NR #7 Women Atomweight 5-3-1
18
04/01/2007 1 #13 Women Atomweight 3-0-1
16
01/01/2007 NR #12 Women Atomweight 2-0-1
16


A fighter's rank (US) state is assigned based on the state that the fighter most frequently fought in professionally, within the past three years. If there is a tie, the most recent state is used. The Win-Loss-Draw record for the fighter in the "Big Leagues". The Big Leagues refer to the top organizations based on a statistical analysis we performed. Some organizations were counted as one, due to mergers, etc. A quality performance is a fight in which the fighter fought an acceptable opponent, and substantiated their current rating (at the time) based on the outcome. At it's most basic level, one can equate "combat age" to "dog years" in that it will mirror the basic human lifecycle. With this computation, we expect fighters to hit their respective "peak" in the years that your typical adult "peaks" in life, somewhere between 25 and 40. We will expect most fighters to start their descent at some point in their 40s and be far removed from their peak by 60. This is an experimental metric that attempts to reflect a fighter's recent opposition quality. The metric goes back 1,080 days, and looks at all the fighter's opponents' W-L-D records within a window of 540 days before, and 540 days after their respective bout(s) with the fighter. All of the records are added up and the cumulative win percentage is presented by this metric in a "strength of schedule" format. These ranking sets have been generated by a recent version of the software, using recent data and will not match previously published issues of the rankings, especially since a majority of these generated sets are for dates much earlier than the site’s inception.

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