TeamR1NG BJJ
TournamentGrappling Industries RENO - Jan 2026
[ white / youth ]FL
Sierra Mammano
Jits
1,017Novice
~33 Jits to Prospect
-2290Last event: Jan 31, 2026
#72,093
Overall
Top 80%
Percentile
#32,266
white Belt
Record
0-40% Win Rate
0 Wins4 Losses
L
L
L
L
0-4 Last 5
Fighter Intelligence
1 TournamentsMedals
0Medals
across 1 tournaments
0% Gold Rate
Belt Avg 14%
Finishing Ability
0%
Subs
Submission 0
Points 0
Other 0
Belt Avg 9%
-9 pts vs belt avg
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Advanced Analytics
AI CalculatedGrowth Trajectory
DVIBuilding New Foundation
Building a new foundation
Win Quality
Building
Clutch Score: -19.2%
4
Losses
4 matches analyzed
Format Split
BALANCED4 Gi0 NoGi
Gi
0W-4L0%
NoGi
0W-0L—%
0% win rate delta
Segment Analysis
Femalewhite BeltAges 8-940,727 FightersComparing to 40,727 white belt fighters
Win Rate
0%avg 27%
AVG
-27 pts vs avg
Sub Rate
0%avg 9%
AVG
-9 pts vs avg
Gold Rate
0%avg 14%
AVG
-14 pts vs avg
What This Means
Sierra is just getting started. Each tournament adds to the picture — too early for meaningful segment comparisons.
Tale of the Tape
Fighter History
4 matches
| Result | Method | Fighter | JITS | Academy | Bracket | Video | Tournament | Format | Date |
|---|---|---|---|---|---|---|---|---|---|
| L | PTS | 1119-570 | Mendes Brazilian Jiu-jitsu | White Gi Kids · White · 8 - 9 Years · -55 Lbs | Gi | Jan 31, 2026 | |||
| L | SUB | 3016-620 | Omega Jiu Jitsu | White Gi Kids · White · 8 - 9 Years · -55 Lbs | Gi | Jan 31, 2026 | |||
| L | SUB | 2789-840 | Mendes Brazilian Jiu-jitsu | White Gi Kids · White · 8 - 9 Years · -55 Lbs | Gi | Jan 31, 2026 | |||
| L | PTS | 1037-260 | Unknown Academy | White Gi Kids · White · 8 - 9 Years · -55 Lbs | Gi | Jan 31, 2026 |
From R1NG BJJ
See all →Aubrie Emelia Byers
5,599
17-2 · 82% SUB
Diamond Anthony Armello
5,212
32-10 · 69% SUB
Ariel Elizabeth Byers
4,843
17-2 · 65% SUB
Liam Serrano-montalvo
4,623
8-3 · 0% SUB
Andrew Emmett Byers
4,144
16-2 · 63% SUB
Ethan James Rivera
3,688
9-1 · 78% SUB
Damian E Hernandez
3,290
11-4 · 45% SUB
Nathaniel Edward Spearman
2,417
13-6 · 46% SUB
Scouting Report
Data Sources
Matches4
Tournaments1
Medals-
Sources
GRAP
First MatchJan 2026
Last MatchJan 2026
Stats verified from completed tournaments only, may not represent a fighter's true record.
FloGrappling Videos
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Similar Fighters
About
Sierra Mammano is a white belt competitor from R1NG BJJ in FL in the early stages of their competition career. With a 0-4 record across 4 matches.
Frequently Asked Questions
Sierra Mammano has a 0-4 competition record across 4 matches in 1 tournaments.
Sierra Mammano is ranked #72093 overall and #32266 among white belt competitors on Jits.gg.
Sierra Mammano trains at R1NG BJJ and competes as a white belt.