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Sean Pierson

  Sean Pierson's profile at Sherdog 
Association: Tap Star
Pro Debut Date: 1999-10-09
Pro Record: 14-6-0
Win Finish %: 71.4%
Quality Perf. %: 60.0%
Last Ranked: 4/01/2013

#58 Welterweight

Highest Quarterly Ranking: 4/01/2000

#33 Light Heavyweight
Last Loss Date: 12/30/2011
Last Loss: [NR] Dong Hyun Kim
UFC Record: 4-2-0
Octagon Time: 1:17:42
Longest Win Streak: 3 (2012-2013, active)
UFC Debut: 2010-12-11
Last UFC Fight: 2013-06-15

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

  Opponent Outcome
W Kenny Robertson
#70 Welterweight 		Decision (Majority)
Round 3
  UFC 161 - Evans vs. Henderson
Saturday, June 15th 2013
W Lance Benoist
#100 Welterweight 		Decision (Unanimous)
Round 3
  UFC 152 - Jones vs. Belfort
Saturday, September 22nd 2012
W Jake Hecht
#79 Welterweight 		Decision (Unanimous)
Round 3
  UFC on FX 3 - Johnson vs. McCall
Friday, June 8th 2012
L Dong Hyun Kim
#25 Welterweight 		Decision (Unanimous)
Round 3
  UFC 141 - Lesnar vs. Overeem
Friday, December 30th 2011
L Jake Ellenberger
#18 Welterweight 		KO (Punch)
Round 1
  UFC 129 - St. Pierre vs. Shields
Saturday, April 30th 2011
W Matt Riddle
#43 Welterweight 		Decision (Unanimous)
Round 3
  UFC 124 - St. Pierre vs. Koscheck 2
Saturday, December 11th 2010
W Ricky Goodall
#744 Welterweight 		TKO (Punches)
Round 1
  W-1 MMA 6 - New Ground
Saturday, October 23rd 2010
W Fabio Holanda
#110 Lightweight 		KO (Punches)
Round 1
  Wreck MMA - Fight for the Troops
Saturday, December 12th 2009
W Jason Rorison
#531 Middleweight 		TKO (Punches and Knees to the Body)
Round 1
  Ringside MMA 2 - Rage Fighting
Saturday, August 22nd 2009
W Iraj Hadin
#600 Welterweight 		TKO (Punches)
Round 1
  W-1 MMA 2 - Unplugged
Saturday, June 13th 2009
W Jacob MacDonald Submission (Punches)
Round 1
  TKO 35 - Quenneville vs. Hioki
Friday, October 3rd 2008
L Jesse Bongfeldt
#110 Welterweight 		TKO (Punches)
Round 2
  HCF - Unfinished Business
Saturday, July 21st 2007
W Chester Post TKO (Punches)
Round 1
  TKO - MMA 2007 Tourney
Saturday, March 17th 2007
L Steve Vigneault
#21 Middleweight 		Decision (Unanimous)
Round 3
  TKO 13 - Ultimate Rush
Saturday, September 6th 2003
W Mark Colangelo Submission (Armbar)
Round 1
  UCC 10 - Battle for the Belts 2002
Saturday, June 15th 2002
L John Alessio
#39 Welterweight 		KO (Head Kick)
Round 2
  UCC 7 - Bad Boyz
Friday, January 25th 2002
W Ali Nestor Charles Submission (Heel Hook)
Round 1
  UCC 3 - Battle for the Belts
Saturday, January 27th 2001
L Chad W. Saunders
#51 Welterweight 		Submission (Heel Hook)
Round 1
  IFC WC 8 - Warriors Challenge 8
Wednesday, June 14th 2000
W Steve Vigneault Submission (Punches)
Round 1
  IFC - Battleground 2000
Saturday, January 22nd 2000
W Steve Vigneault TKO (Punches)
Round 1
  IFC - Montreal Cage Combat
Saturday, October 9th 1999
  Opponent Event Outcome
W Kenny Robertson
#70 Welterweight 		  UFC 161 - Evans vs. Henderson
Saturday, June 15th 2013 		Decision (Majority)
Round 3
W Lance Benoist
#100 Welterweight 		  UFC 152 - Jones vs. Belfort
Saturday, September 22nd 2012 		Decision (Unanimous)
Round 3
W Jake Hecht
#79 Welterweight 		  UFC on FX 3 - Johnson vs. McCall
Friday, June 8th 2012 		Decision (Unanimous)
Round 3
L Dong Hyun Kim
#25 Welterweight 		  UFC 141 - Lesnar vs. Overeem
Friday, December 30th 2011 		Decision (Unanimous)
Round 3
L Jake Ellenberger
#18 Welterweight 		  UFC 129 - St. Pierre vs. Shields
Saturday, April 30th 2011 		KO (Punch)
Round 1
W Matt Riddle
#43 Welterweight 		  UFC 124 - St. Pierre vs. Koscheck 2
Saturday, December 11th 2010 		Decision (Unanimous)
Round 3
W Ricky Goodall
#744 Welterweight 		  W-1 MMA 6 - New Ground
Saturday, October 23rd 2010 		TKO (Punches)
Round 1
W Fabio Holanda
#110 Lightweight 		  Wreck MMA - Fight for the Troops
Saturday, December 12th 2009 		KO (Punches)
Round 1
W Jason Rorison
#531 Middleweight 		  Ringside MMA 2 - Rage Fighting
Saturday, August 22nd 2009 		TKO (Punches and Knees to the Body)
Round 1
W Iraj Hadin
#600 Welterweight 		  W-1 MMA 2 - Unplugged
Saturday, June 13th 2009 		TKO (Punches)
Round 1
W Jacob MacDonald   TKO 35 - Quenneville vs. Hioki
Friday, October 3rd 2008 		Submission (Punches)
Round 1
L Jesse Bongfeldt
#110 Welterweight 		  HCF - Unfinished Business
Saturday, July 21st 2007 		TKO (Punches)
Round 2
W Chester Post   TKO - MMA 2007 Tourney
Saturday, March 17th 2007 		TKO (Punches)
Round 1
L Steve Vigneault
#21 Middleweight 		  TKO 13 - Ultimate Rush
Saturday, September 6th 2003 		Decision (Unanimous)
Round 3
W Mark Colangelo   UCC 10 - Battle for the Belts 2002
Saturday, June 15th 2002 		Submission (Armbar)
Round 1
L John Alessio
#39 Welterweight 		  UCC 7 - Bad Boyz
Friday, January 25th 2002 		KO (Head Kick)
Round 2
W Ali Nestor Charles   UCC 3 - Battle for the Belts
Saturday, January 27th 2001 		Submission (Heel Hook)
Round 1
L Chad W. Saunders
#51 Welterweight 		  IFC WC 8 - Warriors Challenge 8
Wednesday, June 14th 2000 		Submission (Heel Hook)
Round 1
W Steve Vigneault   IFC - Battleground 2000
Saturday, January 22nd 2000 		Submission (Punches)
Round 1
W Steve Vigneault   IFC - Montreal Cage Combat
Saturday, October 9th 1999 		TKO (Punches)
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
04/01/2013 1 #58 Welterweight 13-6-0
111
01/01/2013 3 #57 Welterweight 13-6-0
111
10/01/2012 8 #54 Welterweight 13-6-0
111
07/01/2012 32 #62 Welterweight 12-6-0
96
04/01/2012 8 #94 Welterweight 11-6-0
74
01/01/2012 4 #86 Welterweight 11-6-0
76
10/01/2011   #82 Welterweight 11-5-0
79
07/01/2011 25 #82 Welterweight 11-5-0
79
04/01/2011 1 #57 Welterweight 11-4-0
92
01/01/2011 NR #56 Welterweight 11-4-0
92
10/01/2010 8 #146 Middleweight 9-4-0
45
07/01/2010 6 #138 Middleweight 9-4-0
45
04/01/2010 8 #144 Middleweight 9-4-0
45
01/01/2010 NR #136 Middleweight 9-4-0
45
10/01/2009 38 #194 Welterweight 8-4-0
35
07/01/2009 NR #232 Welterweight 7-4-0
30
04/01/2009 11 #318 Middleweight 6-4-0
22
01/01/2009 120 #329 Middleweight 6-4-0
22
10/01/2008 21 #449 Middleweight 5-4-0
19
07/01/2008 32 #428 Middleweight 5-4-0
19
04/01/2008 16 #396 Middleweight 5-4-0
19
01/01/2008 19 #380 Middleweight 5-4-0
19
10/01/2007 120 #361 Middleweight 5-4-0
19
07/01/2007 16 #241 Middleweight 5-3-0
23
04/01/2007 NR #225 Middleweight 5-3-0
23
10/01/2004 17 #242 Middleweight 4-3-0
16
07/01/2004 23 #225 Middleweight 4-3-0
16
04/01/2004 15 #202 Middleweight 4-3-0
16
01/01/2004 10 #187 Middleweight 4-3-0
17
10/01/2003 NR #177 Middleweight 4-3-0
17
07/01/2003 9 #118 Welterweight 4-2-0
18
04/01/2003 10 #109 Welterweight 4-2-0
18
01/01/2003 10 #99 Welterweight 4-2-0
18
10/01/2002 1 #89 Welterweight 4-2-0
18
07/01/2002 10 #90 Welterweight 4-2-0
18
04/01/2002 28 #100 Welterweight 3-2-0
16
01/01/2002 3 #72 Welterweight 3-1-0
18
10/01/2001 13 #75 Welterweight 3-1-0
18
07/01/2001 4 #62 Welterweight 3-1-0
18
04/01/2001 10 #66 Welterweight 3-1-0
18
01/01/2001 1 #56 Welterweight 2-1-0
18
10/01/2000   #55 Welterweight 2-1-0
18
07/01/2000 NR #55 Welterweight 2-1-0
18
04/01/2000 NR #33 Light Heavyweight 2-0-0
19
01/01/2000 NR #47 Middleweight 1-0-0
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.

Current MMA Rankings

  • Pound for Pound
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  • Women’s Division Point Dominance
  • Women’s Featherweight+
  • Women’s Bantamweight
  • Women’s Flyweight
  • Women’s Strawweight
  • Women’s Atomweight
  • Unknown Division

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