TeamZenith BJJ

TournamentADCC US Open - San Diego, CA - Jan 2026

[ yellow / Youth ]

Whelan David Sampson

Jits

2,754Elite

~346 Jits to Prodigy

+40Last event: Jan 24, 2026

#7,115

Overall

Top 8%

Percentile

#982

yellow Belt

Record

16-1159% Win Rate

16 Wins11 Losses

3-2 Last 5

Trophy Case

3 GoldNAGA 2 · GRAPPLING-X 1

NAGA LOS ANGELES NO-GIOct 4, 2025

NAGA LOS ANGELES GIOct 4, 2025

GRAPPLING-X WORLDS GIMay 10, 2025

Fighter Intelligence

7 Tournaments

Medals

10Medals

across 7 tournaments

Gold 3

Silver 5

Bronze 2

30% Gold Rate

Belt Avg 39%

What this means30% of tournament entries result in gold — 9 points below the belt average. Strong medal conversion with room to grow.

Finishing Ability

47%

Subs

Submission 8

Points 8

Other 1

Belt Avg 60%

-13 pts vs belt avg

What this means47% of wins by submission — 13 points below the belt average. Solid finishing ability with room to grow.

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Advanced Analytics

AI Calculated

Growth Trajectory

DVI

Building Momentum

Winning more than losing — building momentum

Growing faster than 82% of peers

Win Quality

Overachiever

Clutch Score: +10.6%

Close Wins

Losses

Best win: Beat Armenak Garayan (426 pts higher)

27 matches analyzed

Format Split

GI SPECIALIST

11 Gi15 NoGi

8W-3L73%

NoGi

8W-7L53%

Sub Rate

Gi 36%NoGi 27%

19% win rate delta — Gi stronger

Segment Analysis

Maleyellow BeltAges 12-135,468 Fighters

Comparing to 5,468 yellow belt fighters

Win Rate

63%avg 57%

AVG

+6 pts vs avg

Sub Rate

47%avg 60%

AVG

-13 pts vs avg

Gold Rate

29%avg 39%

AVG

-10 pts vs avg

What This Means

Ranked #982 of 5,468 yellow belts. 63% win rate across 27 matches.

Tale of the Tape

Fighter History

26 matches

Result	Method	Fighter	JITS	Academy	Bracket	Tournament	Format	Date
L	PTS	Jensen Bradley Lawson	4273-240	Delano Jiu Jitsu Club	- 11-12 · Advanced · 32kg	ADCCUS Open - San Diego	NoGi	Jan 24, 2026
L	SUB	Samwise Curtis	7802-80	On Guard Brazilian Jiu Jitsu	- 11-12 · Advanced · 32kg	ADCCUS Open - San Diego	NoGi	Jan 24, 2026
W	SUB	Rocco Armani Gambina	2552+360	Team Alpha Miami-cta	- 11-12 · Advanced · 32kg	ADCCUS Open - San Diego	NoGi	Jan 24, 2026
W	PTS	Armenak Garayan	3180+330	Gracie Humaita Valencia	Grey Intermediate · 10-11 · 60-70	NAGALos Angeles II	NoGi	Oct 4, 2025
W	PTS	Toki Matsuda	1354+240	10th Planet Burbank	Grey Intermediate · 10-11 · 60-70	NAGALos Angeles II	NoGi	Oct 4, 2025
W	PTS	Leo Markarian	1880+190	10th Planet Burbank	Grey Intermediate · 10-11 · 60-70	NAGALos Angeles II	NoGi	Oct 4, 2025
W	PTS	Jron Chanax	1193+210	Flow State Jiu Jitsu Eagle Rock	Grey Intermediate · 10-11 · 60-70	NAGALos Angeles II	Gi	Oct 4, 2025
W	PTS	Armenak Garayan	3180+420	Gracie Humaita Valencia	Grey Intermediate · 10-11 · 60-70	NAGALos Angeles II	Gi	Oct 4, 2025
W	SUB	Joaquin Farotto	1007+230	Gracie University Torrance	Yellow Intermediate · 10-11 · 60-70	NAGALos Angeles II	Gi	Oct 4, 2025
L	PTS	Cameron Hoashi	3520-240	Meraki BJJ	Grey No-gi --youth Divisions · 9-10 · Grey Belts · Intermediate · 60.1- 70 Lbs	GRAPPLING-XGrappling X 5/10/2025 Jiu Jitsu World Championships, AZUSA, CA	NoGi	May 10, 2025

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Scouting Report

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Data Sources

Matches26

Placements10

Tournaments7

Medals🥇 3🥈 5🥉 2

Sources

ADCCNAGAGRAPPLING-XIBJJF

First MatchJan 2025

Last MatchJan 2026

Stats verified from completed tournaments only, may not represent a fighter's true record.

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About

Whelan David Sampson is a Yellow belt from Zenith BJJ in Arizona competing with an and 2 gold medals across 5 tournaments. His 36% submission rate ranks in the top 13% of Yellow belts—16 points below the 52% belt average, indicating a control-heavy approach to finishing. At a JITS Rating of 2815, Sampson ranks #530 among Yellow belts (87th percentile) and #3063 globally (94th percentile).

All 11 of Sampson's wins came against higher-rated opponents, including a notable upset over Armenak Garayan (−245 rating points). His development velocity index sits at +6.2 points per month, placing him in the 69th percentile for growth trajectory among peers. Sampson competes in both gi and no-gi formats with nearly identical ratings (1040 gi, 1055 no-gi) across 8 and 11 matches respectively, competing in ADCC and NAGA events since his debut in 2025.

Frequently Asked Questions

Whelan David Sampson has a 17-10 competition record across 27 matches in 7 tournaments.

Whelan David Sampson is ranked #7115 overall and #982 among yellow belt competitors on Jits.gg.

Whelan David Sampson has earned 3 gold, 5 silver, 2 bronze medals across 7 tournaments.

Whelan David Sampson trains at Zenith BJJ and competes as a yellow belt.

Whelan David Sampson has a 47% submission rate and a 63% win rate across 27 matches.

Whelan David Sampson is ranked #982 among yellow belt competitors on Jits.gg.

Whelan David Sampson's current Jits rating is 2754. Use the Rating Simulator on Whelan David Sampson's profile to see how a win or loss against any opponent would affect their rating. Factors include opponent strength, match method (submission vs points), and margin of victory.