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Fight Matrix
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Jack Duffy

Issue Date: 5/10/2026 (Official Release: #1023)
  Jack Duffy's profile at Sherdog 

Jack Duffy's profile at Tapology 

Birth Date: 1995-10-02
Association: MMA Gold Fight Team
Pro Debut Date: 2012-11-24
Pro Record: 7-1-0
Win Finish %: 85.7%
Quality Perf. %: 75.0%
Last Ranked: 10/01/2025

#361 Flyweight

Highest Quarterly Ranking: 1/01/2018

#210 Flyweight

Last Loss Date: 8/27/2024
Last Loss: [#265 FLW] Nick Piccininni
Opponent's Last 5: W W L W L

Complete Professional MMA Fight History


Fighter rankings represent most recent generated quarterly rating prior to the fight

  Opponent Outcome
L Nick Piccininni
#282 Flyweight
Decision (Split)
Round 3
  Dana Whites Contender Series - Contender S...
Tuesday, August 27th 2024
W Devon Jackson
#589 Flyweight
Decision (Unanimous)
Round 3
  Urijah Faber A1 Combat 17 - Green vs. Felipe
Friday, January 19th 2024
W Narek Avagyan Submission (Rear-Naked Choke)
Round 2
  Urijah Fabers A1 Combat 10 - Sanchez vs. S...
Friday, April 28th 2023
W Shane Sargent TKO (Strikes)
Round 1
  PureCombat - Warrior Spirit 2
Saturday, October 5th 2019
W Jeremy Murphy
#636 Bantamweight
Submission (Rear Naked Choke)
Round 1
  Global Knockout 11
Saturday, November 4th 2017
W Nico Lozada Submission (Rear Naked Choke)
Round 1
  WFC 18 - Fight Night Sacramento
Saturday, November 5th 2016
W Tim Silagi TKO (Punches)
Round 1
  Gladiator Challenge: St. Paddy Whack
Saturday, March 14th 2015
W Rocky Del Monte Submission (Armbar)
Round 1
  Gladiator Challenge - Seasons Beatings
Saturday, November 24th 2012
  Opponent Event Outcome
L Nick Piccininni
#282 Flyweight
  Dana Whites Contender Series - Contender S...
Tuesday, August 27th 2024
Decision (Split)
Round 3
W Devon Jackson
#589 Flyweight
  Urijah Faber A1 Combat 17 - Green vs. Felipe
Friday, January 19th 2024
Decision (Unanimous)
Round 3
W Narek Avagyan   Urijah Fabers A1 Combat 10 - Sanchez vs. S...
Friday, April 28th 2023
Submission (Rear-Naked Choke)
Round 2
W Shane Sargent   PureCombat - Warrior Spirit 2
Saturday, October 5th 2019
TKO (Strikes)
Round 1
W Jeremy Murphy
#636 Bantamweight
  Global Knockout 11
Saturday, November 4th 2017
Submission (Rear Naked Choke)
Round 1
W Nico Lozada   WFC 18 - Fight Night Sacramento
Saturday, November 5th 2016
Submission (Rear Naked Choke)
Round 1
W Tim Silagi   Gladiator Challenge: St. Paddy Whack
Saturday, March 14th 2015
TKO (Punches)
Round 1
W Rocky Del Monte   Gladiator Challenge - Seasons Beatings
Saturday, November 24th 2012
Submission (Armbar)
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
10/01/2025 30 #361 Flyweight 7-1-0
26
07/01/2025 10 #331 Flyweight 7-1-0
27
04/01/2025 9 #321 Flyweight 7-1-0
27
01/01/2025 3 #330 Flyweight 7-1-0
27
10/01/2024 102 #327 Flyweight 7-1-0
27
07/01/2024 7 #225 Flyweight 7-0-0
31
04/01/2024 54 #232 Flyweight 7-0-0
31
01/01/2024 8 #286 Flyweight 6-0-0
27
10/01/2023 28 #278 Flyweight 6-0-0
27
07/01/2023 NR #250 Flyweight 6-0-0
27
10/01/2020 52 #880 Featherweight 5-0-0
18
07/01/2020 22 #932 Featherweight 5-0-0
18
04/01/2020 47 #954 Featherweight 5-0-0
18
01/01/2020 NR #1001 Featherweight 5-0-0
18
01/01/2019 17 #250 Flyweight 4-0-0
25
10/01/2018 13 #233 Flyweight 4-0-0
26
07/01/2018 3 #220 Flyweight 4-0-0
26
04/01/2018 7 #217 Flyweight 4-0-0
26
01/01/2018 NR #210 Flyweight 4-0-0
26
10/01/2017 12 #776 Bantamweight 3-0-0
17
07/01/2017 36 #764 Bantamweight 3-0-0
17
04/01/2017 23 #728 Bantamweight 3-0-0
17
01/01/2017 NR #705 Bantamweight 3-0-0
17
01/01/2014 40 #595 Bantamweight 1-0-0
15
10/01/2013 37 #555 Bantamweight 1-0-0
16
07/01/2013 11 #518 Bantamweight 1-0-0
16
04/01/2013 23 #507 Bantamweight 1-0-0
16
01/01/2013 NR #484 Bantamweight 1-0-0
16

Similar Fighters

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 Kenneth Agosto
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.

Writer's Game - Public Relations Agency

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