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
Walker vs Petersen
15-1-0
Record
11-4-0
4-1 last 5
Recent formRecent formWin–loss record over the fighter’s last five bouts, newest first, as carried in their UFC/FightMetric career stats.
3-2 last 5
Brazil
Nationality
United States
28
Age
31
1.98 m
Height — Walker leads
1.85 m
199 cm
Reach — Walker leads
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.

AJ Devito
Hear it — 29:05

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.”

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 69.6% 165 72
  • Method Accuracy 58.4% 59 42
  • Round Accuracy 75.0% 6 2
  • Underdog Accuracy 46.2% 12 14
View full track record (237 calls)
Michael Chiesa
Hear it — 2:16

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”

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 67.7% 42 20
  • Method Accuracy 50.0% 2 2
  • Round AccuracyNo round picks
  • Underdog Accuracy 14.3% 1 6
View full track record (62 calls)
JakeGerberMMA
Hear it — 40:18

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”

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 65.4% 83 44
  • Method Accuracy 60.4% 29 19
  • Round Accuracy 44.4% 4 5
  • Underdog Accuracy 30.0% 3 7
View full track record (127 calls)
DFS By The Numbers
Hear it — 16:22

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”

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 64.4% 94 52
  • Method Accuracy 58.5% 48 34
  • Round Accuracy 35.9% 14 25
  • Underdog Accuracy 35.0% 7 13
View full track record (146 calls)
We Want Picks
Hear it — 19:15

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.”

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 52
  • Method Accuracy 40.0% 2 3
  • Round AccuracyNo qualifying picks
  • Underdog Accuracy 34.5% 10 19
View full track record (145 calls)
HopperMMA
Hear it — 13:56

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”

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 63.6% 77 44
  • Method Accuracy 64.6% 42 23
  • Round Accuracy 47.2% 17 19
  • Underdog Accuracy 26.3% 5 14
View full track record (121 calls)
Bedtime MMA
Hear it — 12:15

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,”

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 70.8% 121 50
  • Method Accuracy 62.9% 56 33
  • Round Accuracy 38.5% 10 16
  • Underdog Accuracy 48.5% 16 17
View full track record (171 calls)

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

Analyst prediction scorecards
Expand row
Bedtime MMA171 resolved calls
Bedtime MMA
Hear it — 12:15

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,”

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 70.8% 121 50
  • Method Accuracy 62.9% 56 33
  • Round Accuracy 38.5% 10 16
  • Underdog Accuracy 48.5% 16 17
View full track record (171 calls)
Historic market Underdog call, market price 37.5%. Petersen · DecWalker · Sub R1MissNot applicable — the winner call missedNot applicable — the winner call missed
AJ Devito237 resolved calls
AJ Devito
Hear it — 29:05

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.”

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 69.6% 165 72
  • Method Accuracy 58.4% 59 42
  • Round Accuracy 75.0% 6 2
  • Underdog Accuracy 46.2% 12 14
View full track record (237 calls)
Historic market Favourite call, market price 62.5%. Walker · SubWalker · Sub R1HitHitNot called
Michael Chiesa62 resolved calls
Michael Chiesa
Hear it — 2:16

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”

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 67.7% 42 20
  • Method Accuracy 50.0% 2 2
  • Round AccuracyNo round picks
  • Underdog Accuracy 14.3% 1 6
View full track record (62 calls)
Historic market Favourite call, market price 62.5%. Walker · to winWalker · Sub R1HitNot calledNot called
JakeGerberMMA127 resolved calls
JakeGerberMMA
Hear it — 40:18

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”

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 65.4% 83 44
  • Method Accuracy 60.4% 29 19
  • Round Accuracy 44.4% 4 5
  • Underdog Accuracy 30.0% 3 7
View full track record (127 calls)
Historic market Favourite call, market price 62.5%. Walker · to winWalker · Sub R1HitNot calledNot called
DFS By The Numbers146 resolved calls
DFS By The Numbers
Hear it — 16:22

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”

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 64.4% 94 52
  • Method Accuracy 58.5% 48 34
  • Round Accuracy 35.9% 14 25
  • Underdog Accuracy 35.0% 7 13
View full track record (146 calls)
Historic market Favourite call, market price 62.5%. Walker · Sub · R1Walker · Sub R1HitHitHit
We Want Picks145 resolved calls
We Want Picks
Hear it — 19:15

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.”

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 52
  • Method Accuracy 40.0% 2 3
  • Round AccuracyNo qualifying picks
  • Underdog Accuracy 34.5% 10 19
View full track record (145 calls)
Historic market Favourite call, market price 62.5%. Walker · to winWalker · Sub R1HitNot calledNot called
HopperMMA121 resolved calls
HopperMMA
Hear it — 13:56

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”

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 63.6% 77 44
  • Method Accuracy 64.6% 42 23
  • Round Accuracy 47.2% 17 19
  • Underdog Accuracy 26.3% 5 14
View full track record (121 calls)
Historic market Favourite call, market price 62.5%. Walker · to winWalker · Sub R1HitNot calledNot called

6 of 7 nailed it.

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

No AI predictions are available for this fight yet.

No market odds are available for this fight yet.

Independent fan-made fight recap. Not affiliated with, endorsed by, or sponsored by the UFC or any other MMA promotion. Analysis is editorial opinion, not betting advice. Fighter names and records are used for commentary. Image credits · Methodology · Privacy · Terms.