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Kill The Body

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Mario Barrios vs Naim Nelson — record, stats and common opponents compared

🇺🇸WELTERWEIGHT

Mario Barrios

Cross-division

MIDDLEWEIGHT

Naim Nelson

Mario Barrios (29-3-2) and Naim Nelson (1-3 across 4 tracked bouts) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share no common opponents in Kill The Body's bout data.

Barrios

29

Wins18 KO · 62%

3

Losses

2

Draws34 tracked bouts

Nelson

Tracked record

1–3

counted from 4 bouts Kill The Body has ingested

Heads up: at least one of these records is a tracked record — the wins and losses Kill The Body has ingested so far, not an independently verified career total. Treat the comparison as a read on the bouts we hold, not a settled ledger.

Head to Head

Barrios leads 1–0

Mario Barrios and Naim Nelson have met 1 time; Barrios leads 1–0.

Mario Barrios and Naim Nelson have met 1 time; Barrios leads 1–0.
Met2017Sep 19Series
Mario BarriosFighter AWWon1–0W–L
Naim NelsonFighter BLLost0–1W–L
ResultTKOR71Meeting

The Numbers

Barrios 6 · Nelson 0 of 6 measurable rows
BarriosNelson
Record†
29-3-2 (edge)1-3
Win %0–100%
88.2% (edge)
25%
Wins by knockoutmax 18
18 (edge)
0
KO ratenot comparable
62.07%—
Stoppage rate (tracked wins)‡0–100%
62% (edge)
0%
Times stopped‡max 2
1 (edge)
2
Title reignslevelmax 0
0
0
Bouts per year§max 2.8
2.8 (edge)
0.4
Bouts trackedcoveragemax 34
34
4

† One or both records are tracked, not career-verified. · ‡ Counted from bouts Kill The Body has ingested, not a career total. · § Across each fighter's tracked career span. · Bars are scaled per row — percentages on 0–100, counts against the larger of the two. Every figure is also printed as text.

Tale of the Tape

Heightnot held
Mario Barrios: 6′0″
Naim Nelson: No height on file
Reachnot held
Mario Barrios: 74″
Naim Nelson: No reach on file
Agenot held
Mario Barrios: 31
Naim Nelson: No date of birth
Stance
Mario Barrios: Orthodox
Naim Nelson: Not recorded

Mario Barrios left, Naim Nelson right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

Welterweight against Middleweight. The two are listed in different weight classes, so the tape measures them as they stand rather than as a matchup.

How They Win

Tracked bouts only
Mario Barrios29 wins · from 34 tracked bouts

Mario Barrios: 29 tracked wins — 18 by KO/TKO (62%) and 11 on the cards (38%). Counted from 34 bouts Kill The Body has ingested.

18 by KO/TKO 62%11 on the cards 38%

Naim Nelson1 win · from 4 tracked bouts

Naim Nelson: 1 tracked win — 1 by another method or unrecorded (100%). Counted from 4 bouts Kill The Body has ingested.

1 by another method or unrecorded 100%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Mario Barrios 34, Naim Nelson 4 — not from a career-complete method table.

Common Opponents

No opponents in common across the bouts Kill The Body has tracked for these two.

Current Form

Oldest left · newest right

Mario Barrios has lost the most recent, to Ryan Garcia. Barrios last boxed on Feb 21, 2026 — 242 days ago.WWDDL

Ugás Sep 2023Maidana May 2024Ramos Nov 2024Pacquiao Jul 2025Garcia Feb 20262.8 tracked bouts per year

Naim Nelson has won once since three straight losses. Nelson last boxed on Feb 8, 2025 — 620 days ago.LLLW

Bey Dec 2015Barrios Sep 2017Ramos Dec 2020Morales Feb 20250.4 tracked bouts per year

Common Questions

With the rows behind them
Have Mario Barrios and Naim Nelson ever fought each other?
Yes. Mario Barrios and Naim Nelson met once on September 19, 2017, and Mario Barrios won by TKO in round 7.
The meeting

WSep 19, 2017 · Barrios · TKO R7

Head to Head ↓
Who has the better record, Barrios or Nelson?
Mario Barrios is 29-3-2 and Naim Nelson is 1-3 across the 4 bouts Kill The Body has tracked. Mario Barrios has the higher win percentage. Records shown as tracked have not yet been independently verified as complete career totals.
Records · win %

Barrios29–3–288.2%

Nelson1–325%

The Numbers ↓
Who has more knockouts, Barrios or Nelson?
Mario Barrios has 18 knockout wins and Naim Nelson has 0. Mario Barrios has more.
Knockout wins · KO rate

Barrios1862.1%

Nelson0

The Numbers ↓
Do Barrios and Nelson have any common opponents?
Kill The Body's bout data shows no opponents that both Mario Barrios and Naim Nelson have faced.
How much fight data does Kill The Body have on Barrios and Nelson?
This comparison is drawn from 34 bouts tracked for Mario Barrios and 4 bouts tracked for Naim Nelson. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Barrios34bouts

Nelson4bouts

How They Win ↓

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