UFC 66: Liddell vs Ortiz 2: Predictions & Analysis

Saturday, December 30, 2006·Las Vegas, Nevada, USA
Published April 18, 2026
Predictions are for entertainment purposes only and do not constitute financial advice. Please gamble responsibly.

UFC 66: Liddell vs Ortiz 2 lands on Saturday, December 30, 2006 in Las Vegas, Nevada, USA with 9 bouts on the card. 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
Chuck Liddell vs Tito OrtizLight HeavyweightChuck LiddellLean63%
Keith Jardine vs Forrest GriffinLight HeavyweightKeith JardineToss-up51%
Jason MacDonald vs Chris LebenMiddleweightJason MacDonaldConfident66%
Andrei Arlovski vs Marcio CruzHeavyweightMarcio CruzLean58%
Michael Bisping vs Eric SchaferLight HeavyweightMichael BispingLean64%
Thiago Alves vs Tony DeSouzaWelterweightThiago AlvesLean62%
Gabriel Gonzaga vs Carmelo MarreroHeavyweightGabriel GonzagaLean61%
Yushin Okami vs Rory SingerMiddleweightYushin OkamiConfident70%
Christian Wellisch vs Anthony PeroshHeavyweightChristian WellischToss-up52%

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Fight-by-Fight Breakdown

Chuck Liddell vs Tito Ortiz

Light Heavyweight
63%
Chuck Liddell
Liddell
16-7
CO-III1275
Striker
VS
Ortiz
15-11-1
CO-III1233
All-Rounder
Over/UnderUnder 54%
Under 54%Over 46%

The Light Heavyweight matchup features Chuck Liddell (16-7) taking on Tito Ortiz (15-11-1).

Liddell carries a modest Elo edge (1275 to 1233), the kind of gap that reflects a slightly better run of form rather than a talent chasm.

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

A few statistical edges stand out. Liddell throws significantly more leather — a 1.2 sig. strike per minute gap. Ortiz is far more active with takedowns, averaging 2.9 more per 15 minutes. Liddell has tighter striking defense, making opponents miss more often.

The Pick: Chuck Liddell over Tito Ortiz. The model gives Liddell a slight nod at 63% — this could easily go either way.

Keith Jardine vs Forrest Griffin

Light Heavyweight
51%
Keith Jardine
Jardine
6-7
RK-III1055
Striker
VS
Griffin
10-5
CO-II1448
All-Rounder
Over/UnderOver 53%
Under 47%Over 53%

The Light Heavyweight matchup features Keith Jardine (6-7) taking on Forrest Griffin (10-5).

Griffin is rated at 1448 — 392 points above Jardine's 1055. Gaps this large usually mean one fighter has been consistently beating better opponents.

Stylistically this is Jardine's striker game against Griffin's all-rounder approach. Jardine brings a versatile approach, while Griffin 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. Griffin throws significantly more leather — a 1.1 sig. strike per minute gap. Griffin is far more active with takedowns, averaging 0.6 more per 15 minutes. Jardine has tighter striking defense, making opponents miss more often.

The Pick: Keith Jardine over Forrest Griffin. This is essentially a pick'em. The model nudges toward Jardine at 51%, but there's almost nothing separating these two.

66%
Jason MacDonald
MacDonald
6-8
PR-II867
Submission Artist
VS
Leben
12-10
MC-I995
All-Rounder
Over/UnderUnder 57%
Under 57%Over 43%

The Middleweight matchup features Jason MacDonald (6-8) taking on Chris Leben (12-10). MacDonald is the bigger frame at 6'3" with a 7-inch reach advantage.

There's a real Elo separation here: Leben at 995 versus MacDonald at 867. That 128-point gap typically reflects a meaningful difference in recent quality of competition and results.

Stylistically this is MacDonald's submission artist game against Leben's knockout artist approach. MacDonald is most dangerous on the ground, constantly threatening chokes and joint locks, while Leben is patient on the feet, timing counters and loading up when he sees openings. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Leben throws significantly more leather — a 0.5 sig. strike per minute gap. Leben is far more active with takedowns, averaging 4.0 more per 15 minutes. Leben has tighter striking defense, making opponents miss more often.

The Pick: Jason MacDonald over Chris Leben. We're leaning MacDonald here at 66%, a solid but not overwhelming edge.

58%
Marcio Cruz
Arlovski
23-18
MC-I993
All-Rounder
VS
Cruz
2-2
RK-I1144
Over/UnderUnder 59%
Under 59%Over 41%

The Heavyweight matchup features Andrei Arlovski (23-18) taking on Marcio Cruz (2-2).

Cruz is rated at 1144 — 151 points above Arlovski's 993. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Arlovski throws significantly more leather — a 0.3 sig. strike per minute gap. Cruz is far more active with takedowns, averaging 0.6 more per 15 minutes. Cruz has tighter striking defense, making opponents miss more often.

The Pick: Marcio Cruz over Andrei Arlovski. The model gives Cruz a slight nod at 58% — this could easily go either way.

Michael Bisping vs Eric Schafer

Light Heavyweight
64%
Michael Bisping
Bisping
20-9
CH-III1615
Striker
VS
Schafer
3-6
MC-III921
Wrestler
Over/UnderUnder 62%
Under 62%Over 38%

The Light Heavyweight matchup features Michael Bisping (20-9) taking on Eric Schafer (3-6).

Bisping is rated at 1615 — 694 points above Schafer's 921. Gaps this large usually mean one fighter has been consistently beating better opponents.

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

A few statistical edges stand out. Bisping throws significantly more leather — a 1.6 sig. strike per minute gap. Bisping is far more active with takedowns, averaging 6.5 more per 15 minutes. Bisping has tighter striking defense, making opponents miss more often.

The Pick: Michael Bisping over Eric Schafer. The model gives Bisping a slight nod at 64% — this could easily go either way.

Thiago Alves vs Tony DeSouza

Welterweight
62%
Thiago Alves
Alves
15-12
RK-III1061
All-Rounder
VS
DeSouza
3-3
MC-III921
Wrestler
Over/UnderOver 51%
Under 49%Over 51%

The Welterweight matchup features Thiago Alves (15-12) taking on Tony DeSouza (3-3). There's a 3-inch height gap favoring DeSouza.

There's a real Elo separation here: Alves at 1061 versus DeSouza at 921. That 140-point gap typically reflects a meaningful difference in recent quality of competition and results.

Stylistically this is Alves's knockout artist game against DeSouza's wrestler approach. Alves is patient on the feet, timing counters and loading up when he sees openings, while DeSouza looks to close distance and put the fight on the mat. Historically these archetypes are dead-even when they collide.

A few statistical edges stand out. Alves throws significantly more leather — a 1.2 sig. strike per minute gap. DeSouza is far more active with takedowns, averaging 1.7 more per 15 minutes. DeSouza has tighter striking defense, making opponents miss more often.

The Pick: Thiago Alves over Tony DeSouza. The model gives Alves a slight nod at 62% — this could easily go either way.

61%
Gabriel Gonzaga
Gonzaga
12-10
RK-II1072
All-Rounder
VS
Marrero
1-3
PR-I875
Over/UnderUnder 59%
Under 59%Over 41%

The Heavyweight matchup features Gabriel Gonzaga (12-10) taking on Carmelo Marrero (1-3). Gonzaga is the bigger frame at 6'2" with a 3-inch reach advantage.

Gonzaga is rated at 1072 — 197 points above Marrero's 875. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Gonzaga throws significantly more leather — a 0.9 sig. strike per minute gap. Marrero is far more active with takedowns, averaging 2.3 more per 15 minutes. Gonzaga has tighter striking defense, making opponents miss more often.

The Pick: Gabriel Gonzaga over Carmelo Marrero. The model gives Gonzaga a slight nod at 61% — this could easily go either way.

Yushin Okami vs Rory Singer

Middleweight
70%
Yushin Okami
Okami
14-7
CO-III1229
Wrestler
VS
Singer
2-2
MC-I976
Over/UnderOver 52%
Under 48%Over 52%

The Middleweight matchup features Yushin Okami (14-7) taking on Rory Singer (2-2).

Okami is rated at 1229 — 253 points above Singer's 976. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Singer throws significantly more leather — a 1.4 sig. strike per minute gap. Okami is far more active with takedowns, averaging 4.5 more per 15 minutes. Singer has tighter striking defense, making opponents miss more often.

The Pick: Yushin Okami over Rory Singer. We're leaning Okami here at 70%, a solid but not overwhelming edge.

52%
Christian Wellisch
Wellisch
2-3
PR-II862
VS
Perosh
5-7
MC-III929
Submission Artist
Over/UnderUnder 57%
Under 57%Over 43%

The Heavyweight matchup features Christian Wellisch (2-3) taking on Anthony Perosh (5-7).

Perosh carries a modest Elo edge (929 to 862), the kind of gap that reflects a slightly better run of form rather than a talent chasm.

A few statistical edges stand out. Perosh throws significantly more leather — a 3.0 sig. strike per minute gap. Wellisch is far more active with takedowns, averaging 5.3 more per 15 minutes. Perosh has tighter striking defense, making opponents miss more often.

The Pick: Christian Wellisch over Anthony Perosh. This is essentially a pick'em. The model nudges toward Wellisch at 52%, but there's almost nothing separating these two.

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.