UFC Fight Night: Iaquinta vs. Cowboy
Ottawa, Canada
4 May 2019
Heavyweight
VS
40%
Harris
60%
Spivac
Win Probability
KO/TKO
Round 1 · 0:50
Combatrics Intelligence
Data-driven breakdown · fighter metrics
Edge: Spivac
Spivac holds a meaningful edge at 60% per the CFR ratings — but Harris has real paths to victory.
Key angles
The CFR gap of 16 points suggests a clear performance difference on paper.
Harris has beaten significantly higher-quality opposition — a QoV edge of 12 points.
Striking split: Harris throws more volume but Spivac connects at a higher rate — quality vs quantity.
Risk flags
Harris's chin rating of 0 flags durability concerns based on KO history.
Spivac has a chin rating of 8 — a potential KO vulnerability.
Harris
Spivac
Physical Matchup
Height · Reach · Age · Stance
6'5"+
Height
6'3"
77"
Reach
+78"
42
Age
+31
Southpaw
Stance
Orthodox
Harris
Spivac
Composite Fighter Rating
Overall score combining performance, win quality, momentum & durability
29.6
45.1
51.0
Performance Avg
52.0
58
Quality of Victory
47
65
Momentum Score
33
Harris
Spivac
Striking
Significant strikes per minute & accuracy
1.9
1.8
45%
Strike Accuracy
50%
10.0
Striking Style Score (/10)
4.5
6 KOs
KO Finishes
3 KOs
Strike targetStrike target
17
Head
0
0
Body
0
0
Leg
1
RangeRange
9Distance1
3Clinch0
5Ground0
Harris
Spivac
Grappling
Takedowns, submissions & wrestling
—
—
—
Sub Attempts / fight
0.1
0.0
Grappling Style Score (/10)
3.5
0.0
Wrestling Style Score (/10)
2.4
0:00
Control Time (this fight)
0:00
0
Reversals
0
Harris
Spivac
Durability / Chin
Resilience against knockouts and stoppages
0
8
3 consec. KOs
Verdict
KO risk
5
KO/TKO Losses
4
1
Sub Losses
0
Avg R1.6 stoppage
KO round context
Avg R1.3 stoppage
Most recent fight
Last KO loss
2 fights ago
—
Strikes absorbed / min
—
16/23 fights
Chin rating based on
15/24 fights
Harris
Spivac
Form & Momentum
Recent fight performance — most recent weighted 30%
65
33
3-fight 📉 slide
Current form
L · KO · R1
L · KO · R2
L · KO · R2
W · KO · R1
W · KO · R1
Last 5
W · Dec · R3
L · Dec · R3
L · KO · R1
W · Sub · R1
L · KO · R2
Harris
Spivac
Finish Rate
Percentage of wins by KO/TKO or Submission
100%
67%
6
KO / TKO Wins
3
0
Submission Wins
3
0
Decision Wins
3
Style Fingerprint
Combatrics radar — 6 fighting dimensions scored 0–10
Harris
Spivac
Fighter 1
Fighter 2
10.0
Striking
KO power & stand-up volume
4.5
0.0
Grappling
Ground control & clinch
3.5
0.0
Wrestling
Takedown threat & defence
2.4
0.0
Submission
Submission attack frequency
3.3
8.2
Pressure
Clinch/ground work rate
6.5
0.8
Volume
Decision-pace fighting
3.9
HarrisSpivac
Strike Zones
Harris
Attacking
17 landedAbsorbing
1 absorbedSpivac
Attacking
1 landedAbsorbing
17 absorbedTargeting Overlap
🎯Harris targets the head (100% of attacks) — Spivac absorbs 100% of strikes there
🎯Spivac targets the legs (100% of attacks) — Harris absorbs 100% of strikes there
Round by Round
This fight · per-round breakdown
Harris
RND
Spivac
0/0R00/0
0/0R10/0
Harris · QOF Timeline
Avg: 4.1WinLossTrend
Spivac · QOF Timeline
Avg: 4.9WinLossTrend
Harris · Last 5
L · KO · R1
Marcin TyburaRating 1.9KO/TKO
UFC Fight Night: Rozenstruik vs. Sakai · 2021-06
L · KO · R2
Alexander VolkovRating 4KO/TKO
UFC 254: Khabib vs. Gaethje · 2020-10
L · KO · R2
Alistair OvereemRating 2.1KO/TKO
UFC Fight Night: Overeem vs. Harris · 2020-05
W · KO · R1
Aleksei OleinikRating 5KO/TKO
UFC Fight Night: Dos Anjos vs. Edwards · 2019-07
W · KO · R1
Serghei SpivacRating 5.5KO/TKO
UFC Fight Night: Iaquinta vs. Cowboy · 2019-05
Spivac · Last 5
W · Dec · R3
Ante DelijaRating 5.5Decision
UFC Fight Night: Strickland vs. Hernandez · 2026-02
L · Dec · R3
Waldo Cortes AcostaRating 7Decision
UFC 316: Dvalishvili vs. O'Malley 2 · 2025-06
L · KO · R1
Jailton AlmeidaRating 3.3KO/TKO
UFC 311: Makhachev vs. Moicano · 2025-01
W · Sub · R1
Marcin TyburaRating 5.4Submission
UFC Fight Night: Tybura vs. Spivac 2 · 2024-08
L · KO · R2
Ciryl GaneRating 3.9KO/TKO
UFC Fight Night: Gane vs. Spivac · 2023-09