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Bout Simulator
Bantamweight · “Pegajoso”

Juan Diaz

1-0-0
Cardio Machine
—Height
—Reach
—Stance
28Age
0KO wins
1Sub wins
100.0%Finish rate
9:08Avg fight
Simulate Tapology ↗

Skill profile

Rated 0–100 · where 138 MMA has read him, his grades and tags set each axis and the stats only nudge inside his band · stats alone where he is silent · the rim is reserved for specialists
Striking — Average, rated 53 of 100 · 138 MMA: striking good · May 2026 · stats read 28 → nudged -10 inside the band · claims striking volume +3, striking technique +2, pressure +3 (+6) Accuracy — Average, rated 50 of 100 · claims striking technique +2 (+4) Striking D — Average, rated 46 of 100 · stats only — nothing in his reads bears on this axis Durability — Average, rated 46 of 100 · stats only — nothing in his reads bears on this axis Wrestling — Average, rated 46 of 100 · stats only — nothing in his reads bears on this axis TD Defense — Average, rated 46 of 100 · stats only — nothing in his reads bears on this axis Grappling — Below avg, rated 41 of 100 · 138 MMA: grappling decent · May 2026 · stats read 45 → nudged +2 inside the band Control — Average, rated 54 of 100 · claims top control +2 (+8) Striking Accuracy Striking D Durability Wrestling TD Defense Grappling Control
striking good
1 analyst read graded this phase
  • good UFC Fight Night Allen vs Costa Full Card Preview & Predictions · May 10, 2026 watch ↗
grappling decent
1 analyst read graded this phase
  • decent UFC Fight Night Allen vs Costa Full Card Preview & Predictions · May 10, 2026 watch ↗
wrestling not yet read
cardio great
1 analyst read graded this phase
  • great UFC Fight Night Allen vs Costa Full Card Preview & Predictions · May 10, 2026 watch ↗
durability not yet read
striking good 1 read
grappling decent 1 read
wrestling not yet read
cardio great 1 read
durability not yet read

138 MMA anchors Striking, Grappling · his tags and claims adjust Accuracy, Control · stats alone on Striking D, Durability, Wrestling, TD Defense.

Built on 9 minutes of tracked cage time across 1 statted fight — every axis is held down until there is more tape, so read this as a sketch rather than a verdict.

Cardio Machine 138 MMA · May 2026 grades his cardio great
Career rates — the raw numbers behind the chart
Sig. strikes landed / min1.42
Sig. strikes absorbed / min1.64
Striking accuracy52.0%
Striking defense54.5%
Knockdowns / 15 min0.0
Takedowns / 15 min8.21
Takedown accuracy62.5%
Takedown defense—
Sub attempts / 15 min1.64
Control time41.6%
Record vs .500+ opponents1-0

Insider info

1 analyst read · 138 MMA · our paraphrase, never his words
vs Malcolm Wellmaker coinflip UFC Fight Night Allen vs Costa Full Card Preview & Predictions · May 10, 2026
strikinggood grapplingdecent cardiogreat

He hedges openly, admitting a price on Diaz would tempt him too, and only commits to Wellmaker 'for now,' calling the whole fight close and heavily style-dependent.

Juan Diaz steps into the UFC for the first time off a strong Contender Series showing, and the analyst likes what he sees: a good, fundamentals-first striker whose basic combinations, very active jab and steady pressure produce heavy volume that keeps growing across a fight, backed by great cardio. He is a decent, secondary grappler who can mix in takedowns, has decent takedown defense, and is tough to pin; once he latches onto your back you do not want him there. The analyst believes he can win UFC-level fights, 'kind of depends on matchups.'

Strengthfundamentals-first striker with good, growing volume, a very active jab and steady pressure
Strengthgreat cardio, does not slow down
Strengthdecent, mix-in grappling with decent takedowns, decent takedown defense, and is hard to hold down

Fight history

1 UFC bout · newest first · opponent records as of fight night
W Malcolm Wellmaker 2-1 walk-in Submission · R2 4:08 — UFC Fight Night: Allen vs. Costa · May 16, 2026
13/25Sig. strikes
15/33Absorbed
5/8Takedowns
3:48Control
0Knockdowns
1Sub attempts
Full event page › Deep dive vs Malcolm Wellmaker › Simulate vs Malcolm Wellmaker ›

Walk-in records count UFC bouts in this database. For the pre-UFC career, see the record breakdown below or the Tapology button up top.

Record breakdown

UFC bouts in this database
1-0-0UFC record

Wins by method

KO/TKO 0
Submission 1
Decision 0
Other 0

Losses by method

KO/TKO 0
Submission 0
Decision 0
Other 0

Fights by organization

UFC 1

Showing UFC fights only — this fighter's full pre-UFC career hasn't been synced yet. It will fill in as the weekly career backfill reaches them.

Division context

vs. 124 qualified Bantamweight fighters · tick = division mean
Striking volume /min 1.4 avg 3.7
Strikes absorbed /min 1.6 avg 3.6
Striking accuracy 52.0% avg 44.0%
Striking defense 54.5% avg 56.4%
Takedowns /15 min 8.2 avg 1.6
Takedown accuracy 62.5% avg 36.9%
Sub attempts /15 min 1.6 avg 0.5
Control time 41.6% avg 19.4%
Finish rate 100.0% avg 48.2%