METRICS GUIDE
Every stat on this page, explained
All stats are calculated from official fight data. Style scores are Combatrics proprietary ratings updated after every event.
UFC 239: Jones vs. Santos
Las Vegas, USA
6 Jul 2019
Bantamweight
VS
35%
Perez
65%
Yadong
Win Probability
KO/TKO
Round 1 · 2:04
★ Official Result
Song YadongwinsKO/TKOR1 · 2:04
def. Alejandro Perez · UFC 239: Jones vs. Santos
Fight Report
Pre-fight analysis · prediction vs result
Prediction vs Result
We predicted
Yadong
→
Actual result
Yadong wins
KO/TKO · R1
Pre-fight analysis
Yadong holds a meaningful edge at 65% per the CFR ratings — but Perez has real paths to victory.
Key angles
The CFR gap of 29 points suggests a clear performance difference on paper.
Risk flags
Perez's chin rating of 62 flags durability concerns based on KO history.
This Fight — Statistics
Actual stats from this bout
PerezYadong
0
Sig. Strikes
0
0.0
Strikes / min (SLpM)
0.0
—
Strike Accuracy
—
Perez
Yadong
Physical Matchup
Height · Reach · Age · Stance
5'6"
Height
+5'8"
67"
Reach
67"
37
Age
+28
Orthodox
Stance
Orthodox
Perez
Yadong
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
35.4
64.4
56.3
Performance Avg
57.7
49
Quality of Victory
45
100
Momentum Score
83
Perez
Yadong
Striking
Career averages · see This Fight stats above
5.1
/ 10
6.1
/ 10
5.5
Style: Pressure
6.6
5.3
Style: Volume
4.6
3 KO wins
Finish Rate (strikes)
6 KO wins
Per-minute strike stats will populate after live card results are scraped
Strike targetStrike target
0
Head
6
0
Body
1
1
Leg
1
RangeRange
1Distance7
0Clinch0
0Ground1
Perez
Yadong
Grappling
Career averages · see This Fight stats above
2.2
/ 10
2.1
/ 10
1.5
Wrestling Style (/10)
1.5
1.3
Submission Style (/10)
1.5
1
Submission wins
2
Per-fight takedown stats will populate after live card results are scraped
Perez
Yadong
Durability / Chin
Resilience against knockouts and stoppages
62
92
Moderate
Verdict
Never stopped
1
KO/TKO Losses
0
1
Sub Losses
0
Avg R1.0 stoppage
KO round context
—
2 fights ago
Last KO loss
—
—
Strikes absorbed / min
—
13/32 fights
Chin rating based on
18/31 fights
Perez
Yadong
Form & Momentum
Recent fight performance — most recent weighted 30%
100
83
Current form
2-fight 🔥 win streak
L · Dec · R3
W · Sub · R2
L · KO · R1
L · Dec · R3
W · Dec · R3
Last 5
W · KO · R2
W · Sub · R2
L · Dec · R3
W · Dec · R3
L · Dec · R3
Perez
Yadong
Finish Rate
Percentage of wins by KO/TKO or Submission
50%
62%
3
KO / TKO Wins
6
1
Submission Wins
2
4
Decision Wins
5
Style Fingerprint
Combatrics radar — 6 fighting dimensions scored 0–10
Perez
Yadong
Fighter 1
Fighter 2
5.1
Striking
KO power & stand-up volume
6.1
2.2
Grappling
Ground control & clinch
2.1
1.5
Wrestling
Takedown threat & defence
1.5
1.3
Submission
Submission attack frequency
1.5
5.5
Pressure
Clinch/ground work rate
6.6
5.3
Volume
Decision-pace fighting
4.6
PerezYadong
Strike Zones
Perez
Attacking
1 landedAbsorbing
8 absorbedYadong
Attacking
8 landedAbsorbing
1 absorbedTargeting Overlap
🎯Perez targets the legs (100% of attacks) — Yadong absorbs 100% of strikes there
🎯Yadong targets the head (75% of attacks) — Perez absorbs 75% of strikes there
Round by Round
This fight · per-round breakdown
Perez
RND
Yadong
0/0R00/0
0/0R10/0
Perez · Last 5
L · Dec · R3
Jonathan MartinezDecision
UFC Fight Night: Makhachev vs. Green · 2022-02
W · Sub · R2
Johnny EduardoSubmission
UFC Fight Night: Santos vs. Walker · 2021-10
L · KO · R1
Song YadongKO/TKO
UFC 239: Jones vs. Santos · 2019-07
L · Dec · R3
Cody StamannDecision
UFC 235: Jones vs. Smith · 2019-03
W · Dec · R3
Eddie WinelandDecision
UFC Fight Night: Dos Santos vs. Ivanov · 2018-07
Yadong · Last 5
W · KO · R2
Umar NurmagomedovKO/TKO
UFC Fight Night: Nurmagomedov vs. Song · 2026-08
W · Sub · R2
Deiveson FigueiredoSubmission
UFC Fight Night: Song vs. Figueiredo · 2026-05
L · Dec · R3
Sean O'MalleyDecision
UFC 324: Gaethje vs. Pimblett · 2026-01
W · Dec · R3
Henry CejudoDecision
UFC Fight Night: Cejudo vs. Song · 2025-02
L · Dec · R3
Petr YanDecision
UFC 299: O'Malley vs. Vera 2 · 2024-03