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Ronald Mastrana Siahaan

  Ronald Mastrana Siahaan's profile at Sherdog 
Last 5: W W W W W
Association: Patunggung Simalungun Siantar Club
Pro Debut Date: 2021-06-12
Pro Record: 8-2-0
Current Ranking:
#353 Lightweight
'Big League' Record: 0-0-0
Last 3 Years: 6-0-0
Win Finish %: 75%
Combat Age: 0
Quality Perf. %: 70%
Last Quality Perf.: 2025-06-14
540 Metric: .654
Rating Points: 41
Highest Quarterly Ranking: 7/01/2025

#343 Lightweight
Last Fight Date: 6/14/2025 [One Pride MMA]
Last Opponent: [#1051 LW] Alan Darmawan Lolo
Opponent's Last 5: W W L W L
Last Loss Date: 11/06/2021
Last Loss: [#894 FW] Sukma Prawira Aditya
Opponent's Last 5: W W L L W

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

  Opponent Outcome
W Alan Darmawan Lolo
#1320 Featherweight 		Decision (Unanimous)
Round 5
  One Pride MMA Fight Night 87 - Ronald vs. ...
Saturday, June 14th 2025
W Sukma Prawira Aditya
#879 Featherweight 		Submission (Rear-Naked Choke)
Round 1
  One Pride MMA Fight Night 84 - Gugun vs. Y...
Saturday, November 2nd 2024
W Derigun Yi Submission (Rear-Naked Choke)
Round 1
  One Pride MMA Fight Night 79 - Pride of th...
Saturday, June 8th 2024
W Angga
#450 Lightweight 		Submission (Rear-Naked Choke)
Round 2
  One Pride MMA Fight Night 74 - Angga vs. R...
Saturday, November 11th 2023
W Supriandi Naibaho
#832 Lightweight 		TKO (Punches and Elbows)
Round 2
  One Pride MMA Fight Night 70 - Lase vs. Pe...
Saturday, July 8th 2023
W Alan Darmawan Lolo TKO (Head Kick)
Round 2
  One Pride MMA Fight Night 65 - Pride of Th...
Saturday, December 3rd 2022
W Alfons Ap Submission (Guillotine Choke)
Round 1
  One Pride MMA Fight Night 58 - The Warrior...
Saturday, May 21st 2022
L Sukma Prawira Aditya Submission (Rear-Naked Choke)
Round 1
  One Pride MMA Fight Night 52 - Fight For G...
Saturday, November 6th 2021
W Supriandi Naibaho Decision (Unanimous)
Round 3
  One Pride MMA Fight Night 49 - The Warrior...
Saturday, September 25th 2021
L Deni Daffa Submission (Arm Triangle Choke)
Round 1
  One Pride MMA Fight Night 46 - Fight for P...
Saturday, June 12th 2021
  Opponent Event Outcome
W Alan Darmawan Lolo
#1320 Featherweight 		  One Pride MMA Fight Night 87 - Ronald vs. ...
Saturday, June 14th 2025 		Decision (Unanimous)
Round 5
W Sukma Prawira Aditya
#879 Featherweight 		  One Pride MMA Fight Night 84 - Gugun vs. Y...
Saturday, November 2nd 2024 		Submission (Rear-Naked Choke)
Round 1
W Derigun Yi   One Pride MMA Fight Night 79 - Pride of th...
Saturday, June 8th 2024 		Submission (Rear-Naked Choke)
Round 1
W Angga
#450 Lightweight 		  One Pride MMA Fight Night 74 - Angga vs. R...
Saturday, November 11th 2023 		Submission (Rear-Naked Choke)
Round 2
W Supriandi Naibaho
#832 Lightweight 		  One Pride MMA Fight Night 70 - Lase vs. Pe...
Saturday, July 8th 2023 		TKO (Punches and Elbows)
Round 2
W Alan Darmawan Lolo   One Pride MMA Fight Night 65 - Pride of Th...
Saturday, December 3rd 2022 		TKO (Head Kick)
Round 2
W Alfons Ap   One Pride MMA Fight Night 58 - The Warrior...
Saturday, May 21st 2022 		Submission (Guillotine Choke)
Round 1
L Sukma Prawira Aditya   One Pride MMA Fight Night 52 - Fight For G...
Saturday, November 6th 2021 		Submission (Rear-Naked Choke)
Round 1
W Supriandi Naibaho   One Pride MMA Fight Night 49 - The Warrior...
Saturday, September 25th 2021 		Decision (Unanimous)
Round 3
L Deni Daffa   One Pride MMA Fight Night 46 - Fight for P...
Saturday, June 12th 2021 		Submission (Arm Triangle Choke)
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 8 #351 Lightweight 8-2-0
41
07/01/2025 54 #343 Lightweight 8-2-0
41
04/01/2025 15 #397 Lightweight 7-2-0
38
01/01/2025 18 #412 Lightweight 7-2-0
38
10/01/2024 14 #430 Lightweight 6-2-0
37
07/01/2024 14 #416 Lightweight 6-2-0
37
04/01/2024 13 #430 Lightweight 5-2-0
35
01/01/2024 170 #417 Lightweight 5-2-0
35
10/01/2023 237 #587 Lightweight 4-2-0
27
07/01/2023 32 #824 Lightweight 3-2-0
20
04/01/2023 2 #792 Lightweight 3-2-0
20
01/01/2023 315 #794 Lightweight 3-2-0
20
10/01/2022 13 #1109 Lightweight 2-2-0
16
07/01/2022 NR #1096 Lightweight 2-2-0
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

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