UFC Fight Night: Ankalaev vs. Guskov  25 Jul 2026 · Etihad Arena, Abu Dhabi, AE

Valter Walker defeats Thomas Petersen by Submission

Win Valter Walker 16-1-0
Loss Thomas Petersen 11-5-0
Submission · calf slicer

Round 1 · 1:32

Walker vs Petersen — Heavyweight · UFC Fight Night: Ankalaev vs. Guskov

Predictions summary

What happened

The result, the defining moments, and what the verdict means.

Walker closed the distance and pulled guard as soon as the pair clinched.

Petersen defended the initial heel-hook attempt by rolling and extracting his leg.

Walker trapped the calf, increased the pressure, and forced the tap.

Pre-fight analysis — how we saw it going in

Case for Walker

Walker arrives with a remarkable four-fight run of heel-hook submissions, each from a different entry and finishing mechanic according to the UFC's event preview. That repetition makes the early grappling exchanges the central question: he has shown he can find the same finish by several routes.

Case for Petersen

Petersen comes in after an emotional split-decision victory and is trying to build on that result. If he can keep Walker from turning transitions into leg entanglements, he gives himself a path to make this a longer heavyweight fight.

What We Were Watching For

  • The first grappling scramble: can Walker find an entry to the legs?
  • Petersen's response after the split-decision win: can he carry that momentum into a very different problem?
  • Whether Petersen can reset after a takedown or clinch rather than accept a prolonged ground exchange.
  • How quickly Walker's submission threat changes the striking and wrestling choices.
Records & career stats
15-1-0
Record
11-4-0
—
Recent formRecent formWin–loss record over the fighter’s last five bouts, newest first, as carried in their UFC/FightMetric career stats.
—
Brazil
Nationality
United States
28
Age
31
6′6″198 cm
Height — Walker leads
6′1″185 cm
78″199 cm
Reach — Walker leads
74″188 cm
—
StanceStanceWhich side a fighter leads from — a striking term, not a religious one. Orthodox: right-handed, left foot and hand forward (the common default). Southpaw: the mirror image, right side forward (usually a left-hander). Switch: changes between the two during a fight.
—
Source pending
Finish rateFinish %Finish rateThe share of a fighter’s wins that ended inside the distance — by KO/TKO or submission — rather than going to the judges’ scorecards. Higher means more finishes.
73%
6
Wins by KO/TKOKO wins — Petersen leads
7
—
Wins by submissionSub wins
1
1.92
Sig. strikes landed / minStr / min — Petersen leadsSignificant strikes landed per minuteAverage number of significant strikes a fighter lands for every minute of fight time — a read on striking output and pace. From UFC/FightMetric career stats.
3.04
2.67
Sig. strikes absorbed / minAbs / minSignificant strikes absorbed per minuteAverage number of significant strikes a fighter takes for every minute of fight time. Lower is better — it means they get hit less often. From UFC/FightMetric career stats.
2.57
43%
Striking defenseStrike def. — Petersen leadsStriking defenseThe percentage of opponents’ significant strikes that do not land — strikes slipped, blocked or evaded. Higher is better. Not the same as striking accuracy, which counts your own strikes that land. From UFC/FightMetric.
55%
100%
Takedown defenseTD def. — Walker leadsTakedown defenseThe percentage of opponents’ takedown attempts that are stuffed. Higher means harder to put on the mat. From UFC/FightMetric.
88%
04:11
Avg. fight timeAvg. timeAverage fight timeThe mean length of the fighter’s bouts (minutes:seconds) — a rough read on whether they tend to finish early or go the distance. From UFC/FightMetric.
10:10

Career stats per UFC.com; recent form is each fighter's last five bouts. Record is as of fight night; career stats, recent form and win totals are the latest on file and may include this fight. Bars compare each stat on a fixed scale; the “Edge” marker flags the leading corner where the gap is meaningful. The snapshot plots five career rates — output, striking defense, durability (strikes absorbed, inverted), takedown defense and finish rate — each normalised on its own scale.

Videos

Outcome footage, post-fight coverage, and the pre-fight lead-up.

Before the fight (1)

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Who Called It?

How the analysts' picks held up once the cage door closed.

FightIQ

Current pick evidence

Picked: Valter Walker · KO/TKO

Fight result: Valter Walker · Submission

FightIQ's public record lists Valter Walker as its pick over Thomas Petersen.

Track record: winner called in 159 of 227 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 70.0% (159 hit, 68 miss, across 227 resolved calls). Method Accuracy 39.9% (59 hit, 89 miss, across 148 method-scored calls on 227 resolved calls). Round Accuracy: No round picks. Underdog Accuracy 55.0% (11 hit, 9 miss, across 20 underdog calls on 227 resolved calls).

View full track record (227 calls)
Michael Chiesa

Current pick evidence

Picked: Valter Walker

Fight result: Valter Walker · Submission

Names Walker as his preliminary-card pick without a method call.

“not least, the leg reaper. Walter Valker versus Thomas Peterson. I am going with”

Track record: winner called in 50 of 75 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 66.7% (50 hit, 25 miss, across 75 resolved calls). Method Accuracy 40.0% (2 hit, 3 miss, across 5 method-scored calls on 75 resolved calls). Round Accuracy: No round picks. Underdog Accuracy 16.7% (2 hit, 10 miss, across 12 underdog calls on 75 resolved calls).

View full track record (75 calls)
AJ Devito

Current pick evidence

Picked: Valter Walker · Sub

Fight result: Valter Walker · Submission

Keeps backing Walker's heel hook until it fails, seeing Petersen as a favorable matchup for another submission.

“Volkan Oezdemir by submission is going to be the pick.”

Track record: winner called in 175 of 264 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 66.3% (175 hit, 89 miss, across 264 resolved calls). Method Accuracy 58.7% (61 hit, 43 miss, across 104 method-scored calls on 264 resolved calls). Round Accuracy 77.8% (7 hit, 2 miss, across 9 round-scored calls on 264 resolved calls). Underdog Accuracy 36.4% (12 hit, 21 miss, across 33 underdog calls on 264 resolved calls).

View full track record (264 calls)
JakeGerberMMA

Current pick evidence

Picked: Valter Walker

Fight result: Valter Walker · Submission

Names Valter Walker as the full-card pick in this preview.

“he's been pulling off. I think he does it again and uh submits Tom Peterson uh”

Track record: winner called in 101 of 154 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 65.6% (101 hit, 53 miss, across 154 resolved calls). Method Accuracy 60.0% (39 hit, 26 miss, across 65 method-scored calls on 154 resolved calls). Round Accuracy 35.7% (5 hit, 9 miss, across 14 round-scored calls on 154 resolved calls). Underdog Accuracy 33.3% (4 hit, 8 miss, across 12 underdog calls on 154 resolved calls).

View full track record (154 calls)
DFS By The Numbers

Current pick evidence

Picked: Valter Walker · Sub · Round 1

Fight result: Valter Walker · Submission

Calls Walker's familiar heel-hook route for a first-round submission.

“heavyweights if that in the division. So yeah, give me Valter Walker. I'll say he”

Track record: winner called in 112 of 173 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 64.7% (112 hit, 61 miss, across 173 resolved calls). Method Accuracy 61.0% (61 hit, 39 miss, across 100 method-scored calls on 173 resolved calls). Round Accuracy 38.3% (18 hit, 29 miss, across 47 round-scored calls on 173 resolved calls). Underdog Accuracy 36.4% (8 hit, 14 miss, across 22 underdog calls on 173 resolved calls).

View full track record (173 calls)
We Want Picks

Current pick evidence

Picked: Valter Walker

Fight result: Valter Walker · Submission

Names Valter Walker as the full-card pick in this preview.

“manages to keep his feet attached to his body. I am going to pick Walter.”

Track record: winner called in 93 of 145 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 64.1% (93 hit, 52 miss, across 145 resolved calls). Method Accuracy 40.0% (2 hit, 3 miss, across 5 method-scored calls on 145 resolved calls). Round Accuracy: No qualifying picks. Underdog Accuracy 34.5% (10 hit, 19 miss, across 29 underdog calls on 145 resolved calls).

View full track record (145 calls)
HopperMMA

Current pick evidence

Picked: Valter Walker

Fight result: Valter Walker · Submission

Names Valter Walker as the full-card pick in this preview.

“Yeah, it's going to be another heel hook. I'm going to go with Valter Walker”

Track record: winner called in 92 of 148 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 62.2% (92 hit, 56 miss, across 148 resolved calls). Method Accuracy 60.8% (45 hit, 29 miss, across 74 method-scored calls on 148 resolved calls). Round Accuracy 48.8% (20 hit, 21 miss, across 41 round-scored calls on 148 resolved calls). Underdog Accuracy 26.9% (7 hit, 19 miss, across 26 underdog calls on 148 resolved calls).

View full track record (148 calls)
Bedtime MMA

Current pick evidence

Picked: Thomas Petersen · Dec

Fight result: Valter Walker · Submission

Picks Thomas Petersen by decision in a deliberately contrarian call.

“you know what, bro? I'm gonna go with Thomas Peterson by decision. I am,”

Track record: winner called in 132 of 185 resolved picks. How winner calls are counted

Analyst track record Track record countsWinner counts resolved calls. Method and Round count only after a correct winner call. Underdog counts picks for a strict underdog in frozen pre-fight odds.Methodology

Winner Accuracy 71.4% (132 hit, 53 miss, across 185 resolved calls). Method Accuracy 61.9% (60 hit, 37 miss, across 97 method-scored calls on 185 resolved calls). Round Accuracy 40.7% (11 hit, 16 miss, across 27 round-scored calls on 185 resolved calls). Underdog Accuracy 48.7% (19 hit, 20 miss, across 39 underdog calls on 185 resolved calls).

View full track record (185 calls)

Analyst picks: Bedtime MMA Miss; FightIQ Hit; Michael Chiesa Hit; AJ Devito Hit; JakeGerberMMA Hit; DFS By The Numbers Hit; We Want Picks Hit; HopperMMA Hit.

7 of 8 nailed it.

Chart: selected analyst picks, not a win probability. Pill badge: Winner hit rate (total scored picks before this event).

The experts above are a lens, not credentials we conferred — analyst, fighter or betting desk.

AI Predictions

This fight is settled. Eligible pre-fight AI forecasts load when this page is online.

Market Odds

No current consensus line is saved on this page.

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