UFC Fight Night: Iaquinta vs. Cowboy: Predictions & Analysis

Saturday, May 4, 2019·Ottawa, Ontario, Canada
Published April 16, 2026
Predictions are for entertainment purposes only and do not constitute financial advice. Please gamble responsibly.

UFC Fight Night: Iaquinta vs. Cowboy lands on Saturday, May 4, 2019 in Ottawa, Ontario, Canada with 12 bouts on the card. The card is headlined by a championship fight. Below is our fight-by-fight breakdown, combining Elo ratings, rolling statistical trends, style matchup data, and betting market context into a pick for every bout.

Quick Picks

MatchupPickConfidenceProb
Donald Cerrone vs Al IaquintaLightweightAl IaquintaLean57%
Derek Brunson vs Elias TheodorouMiddleweightElias TheodorouToss-up54%
Shane Burgos vs Cub SwansonFeatherweightShane BurgosLean58%
Merab Dvalishvili vs Brad KatonaBantamweightMerab DvalishviliLean56%
Walt Harris vs Serghei SpivacHeavyweightWalt HarrisLean57%
Andrew Sanchez vs Marc-Andre BarriaultMiddleweightMarc-Andre BarriaultToss-up52%
Macy Chiasson vs Sarah MorasWomen's BantamweightMacy ChiassonStrong76%
Vince Morales vs Aiemann ZahabiBantamweightVince MoralesLean63%
Nordine Taleb vs Kyle PrepolecWelterweightNordine TalebStrong84%
Matt Sayles vs Kyle NelsonFeatherweightMatt SaylesConfident69%
Arjan Bhullar vs Juan AdamsHeavyweightJuan AdamsToss-up52%
Cole Smith vs Mitch GagnonBantamweightCole SmithLean56%

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Fight-by-Fight Breakdown

Donald Cerrone vs Al Iaquinta

LightweightTitle Fight
57%
Al Iaquinta
Cerrone
23-14
CO-III1238
All-Rounder
VS
Iaquinta
9-6
CO-II1361
Striker
Over/UnderOver 73%
Under 27%Over 73%

The Lightweight championship matchup features Donald Cerrone (23-14) taking on Al Iaquinta (9-6). Cerrone is the bigger frame at 6'1" with a 3-inch reach advantage.

There's a real Elo separation here: Iaquinta at 1361 versus Cerrone at 1238. That 123-point gap typically reflects a meaningful difference in recent quality of competition and results.

Stylistically this is Cerrone's all-rounder game against Iaquinta's striker approach. Cerrone is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Iaquinta brings a versatile approach. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Cerrone throws significantly more leather — a 0.3 sig. strike per minute gap. Cerrone is far more active with takedowns, averaging 0.7 more per 15 minutes. Iaquinta has tighter striking defense, making opponents miss more often.

The Pick: Al Iaquinta over Donald Cerrone. The model gives Iaquinta a slight nod at 57% — this could easily go either way. The market and our model are aligned — the line looks fair.

54%
Elias Theodorou
Brunson
14-7
CO-I1563
Wrestler
VS
Theodorou
8-3
CO-II1357
Striker
Over/UnderUnder 51%
Under 51%Over 49%

The Middleweight matchup features Derek Brunson (14-7) taking on Elias Theodorou (8-3).

Brunson is rated at 1563 — 206 points above Theodorou's 1357. Gaps this large usually mean one fighter has been consistently beating better opponents. Theodorou has won 3 straight.

Stylistically this is Brunson's all-rounder game against Theodorou's striker approach. Brunson is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Theodorou brings a versatile approach. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Theodorou throws significantly more leather — a 1.8 sig. strike per minute gap. Brunson is far more active with takedowns, averaging 0.3 more per 15 minutes. Theodorou has tighter striking defense, making opponents miss more often.

The Pick: Elias Theodorou over Derek Brunson. This is essentially a pick'em. The model nudges toward Theodorou at 54%, but there's almost nothing separating these two. The market implies 49% for Brunson, but our model sees only 46%. That 3-point gap favoring Theodorou is worth watching.

Shane Burgos vs Cub Swanson

Featherweight
58%
Shane Burgos
Burgos
8-3
CO-II1426
All-Rounder
VS
Swanson
15-10
CO-III1323
Striker
Over/UnderOver 58%
Under 42%Over 58%

The Featherweight matchup features Shane Burgos (8-3) taking on Cub Swanson (15-10). Burgos is the bigger frame at 5'11" with a 5-inch reach advantage.

There's a real Elo separation here: Burgos at 1426 versus Swanson at 1323. That 103-point gap typically reflects a meaningful difference in recent quality of competition and results.

The style clash matters here: Burgos is patient on the feet, timing counters and loading up when he sees openings, while Swanson brings a versatile approach. In our database, knockout artists own a 56% win rate against strikers, giving Burgos the stylistic edge.

A few statistical edges stand out. Swanson throws significantly more leather — a 0.1 sig. strike per minute gap. Swanson is far more active with takedowns, averaging 0.3 more per 15 minutes. Burgos has tighter striking defense, making opponents miss more often.

The Pick: Shane Burgos over Cub Swanson. The model gives Burgos a slight nod at 58% — this could easily go either way. The market implies 62% for Burgos, but our model sees only 58%. That 3-point gap favoring Swanson is worth watching.

56%
Merab Dvalishvili
Dvalishvili
14-3
CH-I1939
Wrestler
VS
Katona
4-5
PR-II839
Striker
Over/UnderOver 60%
Under 40%Over 60%

The Bantamweight matchup features Merab Dvalishvili (14-3) taking on Brad Katona (4-5). Dvalishvili will look to use a 4-inch reach edge to control distance.

Dvalishvili is rated at 1939 — 1101 points above Katona's 839. Gaps this large usually mean one fighter has been consistently beating better opponents. Dvalishvili rides a 14-fight win streak into this one.

Stylistically this is Dvalishvili's wrestler game against Katona's striker approach. Dvalishvili looks to close distance and put the fight on the mat, while Katona brings a versatile approach. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Katona throws significantly more leather — a 1.1 sig. strike per minute gap. Dvalishvili is far more active with takedowns, averaging 6.3 more per 15 minutes. Katona has tighter striking defense, making opponents miss more often.

The Pick: Merab Dvalishvili over Brad Katona. The model gives Dvalishvili a slight nod at 56% — this could easily go either way. The market implies 61% for Dvalishvili, but our model sees only 56%. That 5-point gap favoring Katona is worth watching.

57%
Walt Harris
Harris
6-9
CO-III1273
Striker
VS
Spivac
9-6
CO-I1490
Submission Artist
Over/UnderUnder 63%
Under 63%Over 37%

The Heavyweight matchup features Walt Harris (6-9) taking on Serghei Spivac (9-6).

Spivac is rated at 1490 — 217 points above Harris's 1273. Gaps this large usually mean one fighter has been consistently beating better opponents.

Stylistically this is Harris's striker game against Spivac's submission artist approach. Harris brings a versatile approach, while Spivac is most dangerous on the ground, constantly threatening chokes and joint locks. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Harris throws significantly more leather — a 2.9 sig. strike per minute gap. Harris is far more active with takedowns, averaging 0.9 more per 15 minutes. Spivac has tighter striking defense, making opponents miss more often.

The Pick: Walt Harris over Serghei Spivac. The model gives Harris a slight nod at 57% — this could easily go either way.

52%
Marc-Andre Barriault
Sanchez
5-5
MC-II957
Striker
VS
Barriault
6-10
RK-III1051
All-Rounder
Over/UnderUnder 53%
Under 53%Over 47%

The Middleweight matchup features Andrew Sanchez (5-5) taking on Marc-Andre Barriault (6-10).

There's a real Elo separation here: Barriault at 1051 versus Sanchez at 957. That 94-point gap typically reflects a meaningful difference in recent quality of competition and results.

Stylistically this is Sanchez's striker game against Barriault's all-rounder approach. Sanchez brings a versatile approach, while Barriault is comfortable adjusting on the fly, mixing strikes and grappling as openings appear. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Sanchez throws significantly more leather — a 4.8 sig. strike per minute gap. Sanchez is far more active with takedowns, averaging 2.8 more per 15 minutes. Barriault has tighter striking defense, making opponents miss more often.

The Pick: Marc-Andre Barriault over Andrew Sanchez. This is essentially a pick'em. The model nudges toward Barriault at 52%, but there's almost nothing separating these two. The market implies 59% for Sanchez, but our model sees only 48%. That 12-point gap favoring Barriault is worth watching.

Macy Chiasson vs Sarah Moras

Women's Bantamweight
76%
Macy Chiasson
Chiasson
8-6
CO-III1200
Wrestler
VS
Moras
3-6
UC-I786
Wrestler
Over/UnderUnder 51%
Under 51%Over 49%

The Women's Bantamweight matchup features Macy Chiasson (8-6) taking on Sarah Moras (3-6). Chiasson is the bigger frame at 5'11" with a 5-inch reach advantage.

Chiasson is rated at 1200 — 414 points above Moras's 786. Gaps this large usually mean one fighter has been consistently beating better opponents.

Both fighters land in our "Wrestler" archetype — fighters who win by dictating where the fight takes place, grinding out control time and wearing opponents down. When mirror matchups like this happen, the edge usually goes to whoever can impose their preferred pace and range.

A few statistical edges stand out. Chiasson throws significantly more leather — a 3.6 sig. strike per minute gap. Moras is far more active with takedowns, averaging 0.9 more per 15 minutes. Chiasson has tighter striking defense, making opponents miss more often.

The Pick: Macy Chiasson over Sarah Moras. The model is firm on this one: Chiasson at 76%. The market implies 85% for Chiasson, but our model sees only 76%. That 9-point gap favoring Moras is worth watching.

63%
Vince Morales
Morales
3-8
PR-I872
All-Rounder
VS
Zahabi
8-2
CH-III1673
Striker
Over/UnderOver 54%
Under 46%Over 54%

The Bantamweight matchup features Vince Morales (3-8) taking on Aiemann Zahabi (8-2).

Zahabi is rated at 1673 — 800 points above Morales's 872. Gaps this large usually mean one fighter has been consistently beating better opponents. Zahabi has won 7 straight.

Stylistically this is Morales's all-rounder game against Zahabi's striker approach. Morales is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Zahabi brings a versatile approach. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Morales throws significantly more leather — a 1.6 sig. strike per minute gap. Zahabi is far more active with takedowns, averaging 0.0 more per 15 minutes. Zahabi has tighter striking defense, making opponents miss more often.

The Pick: Vince Morales over Aiemann Zahabi. The model gives Morales a slight nod at 63% — this could easily go either way.

84%
Nordine Taleb
Taleb
7-5
RK-II1080
Striker
VS
Prepolec
0-4
UC-I763
Over/UnderOver 55%
Under 45%Over 55%

The Welterweight matchup features Nordine Taleb (7-5) taking on Kyle Prepolec (0-4). Taleb is the bigger frame at 6'1" with a 4-inch reach advantage.

Taleb is rated at 1080 — 317 points above Prepolec's 763. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Taleb throws significantly more leather — a 3.8 sig. strike per minute gap. Taleb is far more active with takedowns, averaging 1.0 more per 15 minutes. Prepolec has tighter striking defense, making opponents miss more often.

The Pick: Nordine Taleb over Kyle Prepolec. The model is firm on this one: Taleb at 84%. Notably, the betting market has Taleb at 80% implied while our model sees 84% — a 4-point disagreement that could signal value.

Matt Sayles vs Kyle Nelson

Featherweight
69%
Matt Sayles
Sayles
1-3
PR-II852
VS
Nelson
5-6-1
CO-III1203
Striker
Over/UnderOver 55%
Under 45%Over 55%

The Featherweight matchup features Matt Sayles (1-3) taking on Kyle Nelson (5-6-1). Nelson is the bigger frame at 5'11" with a 3-inch reach advantage.

Nelson is rated at 1203 — 352 points above Sayles's 852. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Sayles throws significantly more leather — a 2.0 sig. strike per minute gap. Nelson is far more active with takedowns, averaging 0.0 more per 15 minutes. Sayles has tighter striking defense, making opponents miss more often.

The Pick: Matt Sayles over Kyle Nelson. We're leaning Sayles here at 69%, a solid but not overwhelming edge. Notably, the betting market has Sayles at 64% implied while our model sees 69% — a 5-point disagreement that could signal value.

52%
Juan Adams
Bhullar
3-1
RK-I1194
VS
Adams
1-3
UC-III615
Over/UnderUnder 58%
Under 58%Over 42%

The Heavyweight matchup features Arjan Bhullar (3-1) taking on Juan Adams (1-3). Adams is the bigger frame at 6'5" with a 5-inch reach advantage.

Bhullar is rated at 1194 — 578 points above Adams's 615. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Adams throws significantly more leather — a 5.7 sig. strike per minute gap. Adams is far more active with takedowns, averaging 1.1 more per 15 minutes. Bhullar has tighter striking defense, making opponents miss more often.

The Pick: Juan Adams over Arjan Bhullar. This is essentially a pick'em. The model nudges toward Adams at 52%, but there's almost nothing separating these two. Notably, the betting market has Bhullar at 44% implied while our model sees 48% — a 4-point disagreement that could signal value.

Cole Smith vs Mitch Gagnon

Bantamweight
56%
Cole Smith
Smith
1-2
PR-I883
VS
Gagnon
4-4
RK-III1014
Wrestler
Over/UnderOver 53%
Under 47%Over 53%

The Bantamweight matchup features Cole Smith (1-2) taking on Mitch Gagnon (4-4). Smith is the bigger frame at 5'11" with a 2-inch reach advantage.

There's a real Elo separation here: Gagnon at 1014 versus Smith at 883. That 131-point gap typically reflects a meaningful difference in recent quality of competition and results.

A few statistical edges stand out. Gagnon throws significantly more leather — a 3.4 sig. strike per minute gap. Gagnon is far more active with takedowns, averaging 1.5 more per 15 minutes. Smith has tighter striking defense, making opponents miss more often.

The Pick: Cole Smith over Mitch Gagnon. The model gives Smith a slight nod at 56% — this could easily go either way. Notably, the betting market has Smith at 46% implied while our model sees 56% — a 9-point disagreement that could signal value.

Methodology

Predictions are generated by our ensemble model combining LightGBM (65%) and CatBoost (35%), trained on every UFC fight since 1994. The model uses 23 features including Elo ratings, rolling 5-fight statistical averages, style matchup history, physical attributes, and market odds when available.

On our held-out test set (402 fights from January-September 2023), the model achieves 63.4% accuracy with a log-loss of 0.626. High-confidence picks (>75% probability) hit at 82.7%. For full model transparency, visit our Model page.