This Saturday Hernandez vs Rodrigues · Golden 1 Center Sacramento , CA United States See tonight's picks →
Picks · Hernandez vs Rodrigues · Serghei Spivac vs Vitor Petrino
Heavyweight · 3 rounds
The model's read

The model's pick is Vitor Petrino over Serghei Spivac at 59% confidence — a lean.

Most likely outcome: KO/TKO at 41% (KO/TKO 41%, submission 19%, decision 40%) — but all three finishes stay live.

The model gives it a 41% chance of going the distance, with a projected median fight time around 9:31.

That read carries 2.1pp of edge above the market on Vitor Petrino.

Live on Polymarket, Vitor Petrino is priced around 58%.

Assembled from the model's own outputs (confidence, method & round distribution, edge vs the market, live price) — not written free-hand. If a number isn't in the model, it isn't in this summary.

Prediction

One honest, calibrated confidence rating — the number is the signal.

LOW We predict Vitor Petrino59% confident
Serghei Spivac 41% Vitor Petrino 59%
How it ends (method)
KO / TKO41%
Submission19%
Decision40%
How long it lasts (rounds)
Reaches R267%
Reaches R349%
Goes the distance41%
9:31
median time
+2.1pp
edge vs market

Odds

The market line next to the live prediction-market prices — information only.

paymentsSportsbook line
Serghei Spivac+132
Vitor Petrino-138
Live · Polymarket
Serghei Spivac42% · +141
Vitor Petrino58% · -141
as of 2026-08-22T19:51:08Z · $29,368 liquidity
Live · Kalshi
Serghei Spivac42% · 42–43c
Vitor Petrino58% · 58–59c
bid–ask mid · as of 2026-08-22T18:27:42Z

Props

Our read on the method / round / distance markets — the market price shown for context, not as a bet call.

MarketOur readMarket
KO/TKO YES41%44%
SUB YES19%17%
DEC YES40%40%
GOES DISTANCE YES41%40%
OVER 1.5 ROUNDS67%65%
OVER 2.5 ROUNDS49%45%
Source: polymarket-gamma · as of 2026-08-22T19:51:08Z. “Our read” is the model's probability; “Market” is the de-vigged live price.

Tale of the tape

The facts, side by side — Serghei Spivac vs Vitor Petrino.

18-6Record14-2
Polar BearNickname
6' 3"Height6' 2"
78.0"Reach77.0"
OrthodoxStanceOrthodox
31Age28
260 lbs.Weight225 lbs.
MoldovaNationalityBrazil
ChisinauHometownSanta Luzia, Minas Gerais
Polar Bear TeamFighting out ofCM System
Vitals and record from public UFC statistics; nickname, nationality, hometown and camp from the public fighter register. Career finish-splits are pending backfill.

FightIQ Metrics

Our read — not official stats. Six 0–100 scores, each a percentile rank against every fighter on record. The better score on each row is highlighted in that fighter's corner colour.

Serghei SpivacVitor Petrino
66
Striking
64
42
Defence
57
68
Grappling / TD
61
80
Cardio
68
35
Chin
49
58
Fight IQ
60
Our read — derived, not official stats.

Strike zones

Strike zones

Where they go — head to head

Career UFC significant strikes by target zone. Red corner left, blue corner right.

Serghei Spivac15 UFC fights · 448 landed

93.9%
HEAD
67.4%
3.6%
BODY
19.7%
2.5%
LEGS
12.9%

Vitor Petrino9 UFC fights · 294 landed

Significant strikes only, as recorded by UFCStats, across the fighter's whole UFC career. Shares are raw counts — nothing here is modelled or smoothed. Accuracy is landed ÷ attempted and comes from the per-round tape, which covers slightly fewer fights than the totals do.

Stats comparison

Serghei Spivac (left) vs Vitor Petrino (right) — career striking & grappling rates.

Strikes landed / min
3.57
vs
3.24
Striking accuracy
47%
vs
48%
Strikes absorbed / min
4.23
vs
2.71
Striking defence
52%
vs
51%
Takedowns / 15 min
3.82
vs
2.6
Takedown accuracy
59%
vs
46%
Takedown defence
63%
vs
79%
Sub attempts / 15 min
0.5
vs
0.7
Career averages from public UFC statistics.

Bios

Who these two are — reported newsroom prose where we have it, our own data-built profile where we don’t. Each is labelled.

Serghei SpivacFightIQ profileWrestle-grinder

6'3" orthodox wrestle-grinder with a 8-6 record, age 31. Standout metric: hits 62% of takedown attempts; finishes 38% of wins by submission. Form: last 5: WLWLL · on a 2-fight slide · 259 days off · Elo 1529.

Built from Serghei Spivac’s own striking, grappling and form figures, as of 2026-02-21. Full profile →
Vitor PetrinoFightIQ profileWrestle-grinder

6'2" orthodox wrestle-grinder with a 6-2 record, age 28. Standout metric: hits 51% of takedown attempts; defends 81% of takedowns. Form: last 5: WLLWW · on a 2-fight win streak · 154 days off · Elo 1542.

Built from Vitor Petrino’s own striking, grappling and form figures, as of 2026-03-14. Full profile →

Related coverage

pending

No newsroom piece is mapped to this bout yet. The newsroom is live — read the latest →

← Back to the full card