UFC Fight Night: Magny vs. Ponzinibbio: Predictions & Analysis

Saturday, November 17, 2018·Buenos Aires, Buenos Aires, Argentina
Published April 16, 2026
Predictions are for entertainment purposes only and do not constitute financial advice. Please gamble responsibly.

UFC Fight Night: Magny vs. Ponzinibbio lands on Saturday, November 17, 2018 in Buenos Aires, Buenos Aires, Argentina 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
Santiago Ponzinibbio vs Neil MagnyWelterweightSantiago PonzinibbioConfident70%
Ricardo Lamas vs Darren ElkinsFeatherweightRicardo LamasToss-up54%
Johnny Walker vs Khalil Rountree Jr.Light HeavyweightKhalil Rountree Jr.Lean61%
Ian Heinisch vs Cezar FerreiraMiddleweightCezar FerreiraLean60%
Marlon Vera vs Guido CannettiBantamweightMarlon VeraStrong77%
Cynthia Calvillo vs Poliana BotelhoWomen's StrawweightPoliana BotelhoLean57%
Michel Prazeres vs Bartosz FabinskiWelterweightBartosz FabinskiToss-up55%
Alexandre Pantoja vs Yuta SasakiFlyweightAlexandre PantojaStrong75%
Austin Arnett vs Humberto BandenayFeatherweightHumberto BandenayConfident68%
Laureano Staropoli vs Hector AldanaWelterweightLaureano StaropoliLean60%
Jesus Pinedo vs Devin PowellLightweightJesus PinedoLean61%
Nad Narimani vs Anderson Dos SantosFeatherweightNad NarimaniConfident68%

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Fight-by-Fight Breakdown

Santiago Ponzinibbio vs Neil Magny

WelterweightTitle Fight
70%
Santiago Ponzinibbio
Ponzinibbio
12-8
CO-II1335
Striker
VS
Magny
24-13
CO-II1418
Wrestler
Over/UnderOver 62%
Under 38%Over 62%

The Welterweight championship matchup features Santiago Ponzinibbio (12-8) taking on Neil Magny (24-13). Magny is the bigger frame at 6'3" with a 7-inch reach advantage.

There's a real Elo separation here: Magny at 1418 versus Ponzinibbio at 1335. That 84-point gap typically reflects a meaningful difference in recent quality of competition and results.

Stylistically this is Ponzinibbio's striker game against Magny's wrestler approach. Ponzinibbio brings a versatile approach, while Magny 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. Ponzinibbio throws significantly more leather — a 2.0 sig. strike per minute gap. Magny is far more active with takedowns, averaging 1.6 more per 15 minutes. Ponzinibbio has tighter striking defense, making opponents miss more often.

The Pick: Santiago Ponzinibbio over Neil Magny. We're leaning Ponzinibbio here at 70%, a solid but not overwhelming edge. Notably, the betting market has Ponzinibbio at 66% implied while our model sees 70% — a 4-point disagreement that could signal value.

54%
Ricardo Lamas
Lamas
11-6
CO-II1401
All-Rounder
VS
Elkins
19-11
RK-I1191
Wrestler
Over/UnderOver 61%
Under 39%Over 61%

The Featherweight matchup features Ricardo Lamas (11-6) taking on Darren Elkins (19-11).

Lamas is rated at 1401 — 210 points above Elkins's 1191. Gaps this large usually mean one fighter has been consistently beating better opponents.

The style clash matters here: Lamas is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Elkins looks to close distance and put the fight on the mat. In our database, wrestlers own a 58% win rate against all-rounders, giving Elkins the stylistic edge.

A few statistical edges stand out. Lamas throws significantly more leather — a 0.1 sig. strike per minute gap. Elkins is far more active with takedowns, averaging 1.6 more per 15 minutes. Lamas has tighter striking defense, making opponents miss more often.

The Pick: Ricardo Lamas over Darren Elkins. This is essentially a pick'em. The model nudges toward Lamas at 54%, but there's almost nothing separating these two. The market implies 61% for Lamas, but our model sees only 54%. That 7-point gap favoring Elkins is worth watching.

61%
Khalil Rountree Jr.
Walker
8-6
CO-I1552
All-Rounder
VS
Jr.
10-7
CO-I1559
Striker
Over/UnderUnder 59%
Under 59%Over 41%

The Light Heavyweight matchup features Johnny Walker (8-6) taking on Khalil Rountree Jr. (10-7). Walker is the bigger frame at 6'6" with a 6-inch reach advantage.

The Elo gap here is razor-thin — Walker at 1552, Jr. at 1559. On paper, this is as close to a coin flip as it gets.

Stylistically this is Walker's all-rounder game against Jr.'s knockout artist approach. Walker is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Jr. 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. Jr. throws significantly more leather — a 3.1 sig. strike per minute gap. Jr. is far more active with takedowns, averaging 0.0 more per 15 minutes. Walker has tighter striking defense, making opponents miss more often.

The Pick: Khalil Rountree Jr. over Johnny Walker. The model gives Jr. a slight nod at 61% — this could easily go either way.

60%
Cezar Ferreira
Heinisch
3-4
RK-II1102
All-Rounder
VS
Ferreira
9-6
RK-II1117
Wrestler
Over/UnderUnder 57%
Under 57%Over 43%

The Middleweight matchup features Ian Heinisch (3-4) taking on Cezar Ferreira (9-6). Ferreira is the bigger frame at 6'1" with a 6-inch reach advantage.

The Elo gap here is razor-thin — Heinisch at 1102, Ferreira at 1117. On paper, this is as close to a coin flip as it gets.

The style clash matters here: Heinisch is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Ferreira looks to close distance and put the fight on the mat. In our database, wrestlers own a 58% win rate against all-rounders, giving Ferreira the stylistic edge.

A few statistical edges stand out. Ferreira throws significantly more leather — a 1.8 sig. strike per minute gap. Ferreira is far more active with takedowns, averaging 3.7 more per 15 minutes. Heinisch has tighter striking defense, making opponents miss more often.

The Pick: Cezar Ferreira over Ian Heinisch. The model gives Ferreira a slight nod at 60% — this could easily go either way. The market and our model are aligned — the line looks fair.

77%
Marlon Vera
Vera
15-11
CO-I1489
All-Rounder
VS
Cannetti
4-6
RK-III1026
All-Rounder
Over/UnderUnder 55%
Under 55%Over 45%

The Bantamweight matchup features Marlon Vera (15-11) taking on Guido Cannetti (4-6). Vera is the bigger frame at 5'8" with a 2-inch reach advantage.

Vera is rated at 1489 — 464 points above Cannetti's 1026. Gaps this large usually mean one fighter has been consistently beating better opponents.

Both fighters land in our "All-Rounder" archetype — fighters comfortable everywhere, able to strike or grapple depending on what the opponent gives them. 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. Vera throws significantly more leather — a 1.6 sig. strike per minute gap. Cannetti is far more active with takedowns, averaging 2.3 more per 15 minutes. Cannetti has tighter striking defense, making opponents miss more often.

The Pick: Marlon Vera over Guido Cannetti. The model is firm on this one: Vera at 77%. Notably, the betting market has Vera at 74% implied while our model sees 77% — a 3-point disagreement that could signal value.

Cynthia Calvillo vs Poliana Botelho

Women's Strawweight
57%
Poliana Botelho
Calvillo
6-6-1
MC-I992
All-Rounder
VS
Botelho
3-4
PR-II861
Striker
Over/UnderOver 57%
Under 43%Over 57%

The Women's Strawweight matchup features Cynthia Calvillo (6-6-1) taking on Poliana Botelho (3-4). Botelho is the bigger frame at 5'8" with a 3-inch reach advantage.

There's a real Elo separation here: Calvillo at 992 versus Botelho at 861. That 131-point gap typically reflects a meaningful difference in recent quality of competition and results.

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

A few statistical edges stand out. Botelho throws significantly more leather — a 1.6 sig. strike per minute gap. Calvillo is far more active with takedowns, averaging 0.6 more per 15 minutes. Calvillo has tighter striking defense, making opponents miss more often.

The Pick: Poliana Botelho over Cynthia Calvillo. The model gives Botelho a slight nod at 57% — this could easily go either way. Notably, the betting market has Calvillo at 38% implied while our model sees 43% — a 5-point disagreement that could signal value.

55%
Bartosz Fabinski
Prazeres
10-4
CO-III1296
Wrestler
VS
Fabinski
3-3
MC-I970
Striker
Over/UnderOver 54%
Under 46%Over 54%

The Welterweight matchup features Michel Prazeres (10-4) taking on Bartosz Fabinski (3-3). Fabinski is the bigger frame at 6'0" with a 8-inch reach advantage.

Prazeres is rated at 1296 — 326 points above Fabinski's 970. Gaps this large usually mean one fighter has been consistently beating better opponents.

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

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

The Pick: Bartosz Fabinski over Michel Prazeres. This is essentially a pick'em. The model nudges toward Fabinski at 55%, but there's almost nothing separating these two. The market implies 58% for Prazeres, but our model sees only 45%. That 13-point gap favoring Fabinski is worth watching.

75%
Alexandre Pantoja
Pantoja
14-4
CO-I1543
Wrestler
VS
Sasaki
4-5
RK-III1042
Wrestler
Over/UnderOver 57%
Under 43%Over 57%

The Flyweight matchup features Alexandre Pantoja (14-4) taking on Yuta Sasaki (4-5). Sasaki is the bigger frame at 5'10" with a 4-inch reach advantage.

Pantoja is rated at 1543 — 501 points above Sasaki's 1042. Gaps this large usually mean one fighter has been consistently beating better opponents. Pantoja rides a 8-fight win streak into this one.

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. Pantoja throws significantly more leather — a 2.1 sig. strike per minute gap. Sasaki is far more active with takedowns, averaging 2.9 more per 15 minutes. Pantoja has tighter striking defense, making opponents miss more often.

The Pick: Alexandre Pantoja over Yuta Sasaki. The model is firm on this one: Pantoja at 75%. The market and our model are aligned — the line looks fair.

68%
Humberto Bandenay
Arnett
1-3
PR-I874
VS
Bandenay
1-3
UC-I750
Over/UnderOver 53%
Under 47%Over 53%

The Featherweight matchup features Austin Arnett (1-3) taking on Humberto Bandenay (1-3).

There's a real Elo separation here: Arnett at 874 versus Bandenay at 750. That 124-point gap typically reflects a meaningful difference in recent quality of competition and results.

A few statistical edges stand out. Bandenay throws significantly more leather — a 4.2 sig. strike per minute gap. Arnett is far more active with takedowns, averaging 0.6 more per 15 minutes. Bandenay has tighter striking defense, making opponents miss more often.

The Pick: Humberto Bandenay over Austin Arnett. We're leaning Bandenay here at 68%, a solid but not overwhelming edge. The market and our model are aligned — the line looks fair.

60%
Laureano Staropoli
Staropoli
2-4
PR-III810
Striker
VS
Aldana
0-3
UC-II690
Over/UnderOver 60%
Under 40%Over 60%

The Welterweight matchup features Laureano Staropoli (2-4) taking on Hector Aldana (0-3).

There's a real Elo separation here: Staropoli at 810 versus Aldana at 690. That 120-point gap typically reflects a meaningful difference in recent quality of competition and results.

A few statistical edges stand out. Aldana throws significantly more leather — a 4.0 sig. strike per minute gap. Aldana is far more active with takedowns, averaging 3.1 more per 15 minutes. Staropoli has tighter striking defense, making opponents miss more often.

The Pick: Laureano Staropoli over Hector Aldana. The model gives Staropoli a slight nod at 60% — this could easily go either way. Notably, the betting market has Staropoli at 47% implied while our model sees 60% — a 13-point disagreement that could signal value.

61%
Jesus Pinedo
Pinedo
1-1
RK-III1015
VS
Powell
1-3
PR-II865
Over/UnderOver 51%
Under 49%Over 51%

The Lightweight matchup features Jesus Pinedo (1-1) taking on Devin Powell (1-3).

Pinedo is rated at 1015 — 150 points above Powell's 865. Gaps this large usually mean one fighter has been consistently beating better opponents.

A few statistical edges stand out. Powell throws significantly more leather — a 2.4 sig. strike per minute gap. Powell is far more active with takedowns, averaging 0.0 more per 15 minutes. Pinedo has tighter striking defense, making opponents miss more often.

The Pick: Jesus Pinedo over Devin Powell. The model gives Pinedo a slight nod at 61% — this could easily go either way. The market implies 67% for Pinedo, but our model sees only 61%. That 6-point gap favoring Powell is worth watching.

68%
Nad Narimani
Narimani
2-2
PR-I895
VS
Santos
1-3
PR-II858
Over/UnderOver 59%
Under 41%Over 59%

The Featherweight matchup features Nad Narimani (2-2) taking on Anderson Dos Santos (1-3). There's a 3-inch height gap favoring Narimani.

Narimani carries a modest Elo edge (895 to 858), the kind of gap that reflects a slightly better run of form rather than a talent chasm.

A few statistical edges stand out. Narimani throws significantly more leather — a 3.0 sig. strike per minute gap. Narimani is far more active with takedowns, averaging 6.0 more per 15 minutes. Santos has tighter striking defense, making opponents miss more often.

The Pick: Nad Narimani over Anderson Dos Santos. We're leaning Narimani here at 68%, a solid but not overwhelming edge.

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.