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Kill The Body

and the head will die

Gary Russell Jr. vs Joseph Diaz — record, stats and common opponents compared

🇺🇸LIGHTWEIGHT

Gary Russell Jr.

🇺🇸UNITED STATES

Joseph Diaz

Gary Russell Jr. (32-2) and Joseph Diaz (34-10-1) are compared on record, finishing method, activity, and common opponents on Kill The Body. The two have met once. They share 1 common opponent.

Jr.

32

Wins19 KO · 59%

2

Losses

0

Draws34 tracked bouts

Diaz

34

Wins15 KO · 44%

10

Losses

1

Draw46 tracked bouts

Head to Head

Jr. leads 1–0

Gary Russell Jr. and Joseph Diaz have met 1 time; Jr. leads 1–0.

Gary Russell Jr. and Joseph Diaz have met 1 time; Jr. leads 1–0.
Met2018May 19Series
Gary Russell Jr.Fighter AWWon1–0W–L
Joseph DiazFighter BLLost0–1W–L
ResultUD1Meeting

The Numbers

Jr. 6 · Diaz 2 of 8 measurable rows
Jr.Diaz
Record
32-2 (edge)34-10-1
Win %0–100%
94.1% (edge)
76.7%
Wins by knockoutmax 19
19 (edge)
15
KO rate0–100%
59.38% (edge)
44.12%
Stoppage rate (tracked wins)†0–100%
59% (edge)
43%
Times stopped†max 1
0 (edge)
1
Title reignsmax 2
1
2 (edge)
Bouts per year‡max 3.4
2.1
3.4 (edge)
Bouts trackedcoveragemax 46
34
46

† 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

Height+1″
Gary Russell Jr.: 5′5″
Joseph Diaz: 5′6″ (edge)
ReachLevel
Gary Russell Jr.: 64″
Joseph Diaz: 64″
Age5 yrs apart
Gary Russell Jr.: 38
Joseph Diaz: 33
Stance
Gary Russell Jr.: Southpaw
Joseph Diaz: Southpaw

Gary Russell Jr. left, Joseph Diaz right, as everywhere on this page. Age is stated, not scored — neither age nor stance carries an edge.

How They Win

Tracked bouts only
Gary Russell Jr.32 wins · from 34 tracked bouts

Gary Russell Jr.: 32 tracked wins — 19 by KO/TKO (59%), 12 on the cards (38%) and 1 by another method or unrecorded (3%). Counted from 34 bouts Kill The Body has ingested.

19 by KO/TKO 59%12 on the cards 38%1 by another method or unrecorded 3%

Joseph Diaz35 wins · from 46 tracked bouts

Joseph Diaz: 35 tracked wins — 15 by KO/TKO (43%) and 20 on the cards (57%). Counted from 46 bouts Kill The Body has ingested.

15 by KO/TKO 43%20 on the cards 57%

One square per tracked win. Counted from the bouts Kill The Body has ingested for each fighter — Gary Russell Jr. 34, Joseph Diaz 46 — not from a career-complete method table.

Common Opponents

1 shared

1 shared · even on 1

Jr.

Opponent

Diaz

Both sides are set at the same size on purpose. Kill The Body does not score a second-round knockout above a split decision — the edge counts losses first and wins as the tiebreak, and the rest is yours to argue. Shared opponents are matched on fighter identity, not on name, so two different fighters with the same name never merge into one row.

Current Form

Oldest left · newest right

Gary Russell Jr. has won once since losing a decision to Mark Magsayo. Jr. last boxed on Jul 19, 2025 — 463 days ago.WWWLW

Diaz May 2018Martínez May 2019Tögstsogt Feb 2020Magsayo Jan 2022Castañeda Jul 20252.1 tracked bouts per year

Joseph Diaz has lost three straight, after one straight win. Diaz last boxed on Jun 19, 2026 — 128 days ago.LWLLL

Montoya Nov 2024Diaz Jun 2025Prograis Aug 2025Rocha Mar 2026Sylve Jun 20263.4 tracked bouts per year

Common Questions

With the rows behind them
Have Gary Russell Jr. and Joseph Diaz ever fought each other?
Yes. Gary Russell Jr. and Joseph Diaz met once on May 19, 2018, and Gary Russell Jr. won by UD.
The meeting

WMay 19, 2018 · Jr. · UD

Head to Head ↓
Who has the better record, Jr. or Diaz?
Gary Russell Jr. is 32-2 and Joseph Diaz is 34-10-1. Gary Russell Jr. has the higher win percentage.
Records · win %

Jr.32–294.1%

Diaz34–10–176.7%

The Numbers ↓
Who has more knockouts, Jr. or Diaz?
Gary Russell Jr. has 19 knockout wins and Joseph Diaz has 15. Gary Russell Jr. has more.
Knockout wins · KO rate

Jr.1959.4%

Diaz1544.1%

The Numbers ↓
Do Jr. and Diaz have any common opponents?
Gary Russell Jr. and Joseph Diaz share 1 common opponent: Roberto Castaneda. Neither fighter fared better across the shared opponents overall.
Shared opponent

Roberto CastanedaWW

Common Opponents ↓
Who is bigger, Jr. or Diaz?
Joseph Diaz is the taller fighter at 168 cm, 4 cm above the other.
Height · reach

Jr.164 cm163 cm reach

Diaz168 cm163 cm reach

Tale of the Tape ↓
How much fight data does Kill The Body have on Jr. and Diaz?
This comparison is drawn from 34 bouts tracked for Gary Russell Jr. and 46 bouts tracked for Joseph Diaz. Method and activity splits reflect those bouts only.
Bouts tracked · no edge

Jr.34bouts

Diaz46bouts

How They Win ↓

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