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Celtics vs Mavericks Game 3 Picks, Odds | NBA Finals Prediction

Michael Crosson
Michael Crosson Sports Betting Expert
6 minute read

The 2024 NBA Finals continue on Wednesday night, with Game 3 of Mavericks vs. Celtics set to tip off at 8:30 p.m. ET on ABC.

The Celtics opened as 1.5-point underdogs on the spread in Wednesday's matchup, while the total is set at over/under 213 total points at DraftKings.

Here's everything you need to know about Game 3 of the NBA Finals between Dallas and Boston -- the latest betting odds, as well as our expert picks and prediction for Wednesday, June 12.

For more basketball action, check out our NBA odds.

NBA Finals Game 3 Odds

BOS @ DAL Odds

  • Full Game
  • 1H
  • 1Q
  • 2Q
  • 3Q
  • 4Q
  • Spread
  • Total
  • Moneyline
Final
Boston Celtics 505 Celtics
+1.5 -110 +3 -115 +2.5 -105 +2.5 -105 +3 -115 +2.5 -108 +2.5 -118 +2.5 -117 +1.5 +104 +2.5 -110 +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 -3 -105 -2.5 -115 -2.5 -125 -3 -105 -2.5 -112 -2.5 -110 -2.5 -109 -1.5 -128 -2.5 -120 -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o110 -110 N/A o109.5 -120 o110 -115 o109.5 -112 o109.5 -118 o109.5 -117 o110 -110 o109.5 -120 o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u110 -110 N/A u109.5 -110 u110 -105 u109.5 -108 u109.5 -113 u109.5 -112 u110 -110 u109.5 -110 u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A +145 +150 +143 +150 +132 +135 +136 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A -175 -190 -170 -180 -175 -175 -168 N/A -152  
Final
Boston Celtics 505 Celtics
+1.5 -110 +1 -110 N/A N/A -1.5 -110 -0.5 -108 +1.5 -130 +1.5 -129 N/A N/A +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 -1 -110 N/A N/A +1.5 -120 +0.5 -112 -1.5 -103 -1.5 even N/A N/A -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o104 -110 N/A N/A o102.5 -115 o103 -112 o103.5 -114 o103.5 -113 N/A N/A o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u104 -110 N/A N/A u102.5 -115 u103 -108 u103.5 -120 u103.5 -118 N/A N/A u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A N/A N/A N/A -118 -104 -103 -110 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A N/A N/A N/A -102 -127 -125 -110 N/A -152  
Final
Boston Celtics 505 Celtics
+1.5 -110 +2 -110 +1.5 -105 +1.5 -110 +2 -110 +1.5 -105 +1.5 -117 +1.5 -115 +0.5 +114 +1.5 -110 +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 -2 -110 -1.5 -115 -1.5 -120 -2 -120 -1.5 -115 -1.5 -112 -1.5 -110 -0.5 -140 -1.5 -120 -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o55 -115 N/A N/A o55 -130 o55.5 -115 o54.5 -125 o54.5 -124 o54.5 -125 o55.5 -110 o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u55 -105 N/A N/A u55 even u55.5 -105 u54.5 -106 u54.5 -105 u54.5 -102 u55.5 -120 u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A +135 +135 +140 +130 +123 +125 +126 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A -165 -170 -170 -155 -159 -159 -154 N/A -152  
Final
Boston Celtics 505 Celtics
+1.5 -110 +1 -110 N/A +0.5 -105 +1.5 -115 +1.5 -112 +1.5 -125 +1.5 -124 +0.5 +106 +0.5 -105 +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 -1 -120 N/A -0.5 -125 -1.5 -115 -1.5 -108 -1.5 -107 -1.5 -105 -0.5 -130 -0.5 -120 -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o54.5 -115 N/A N/A o55.5 -110 o54.5 -120 o54.5 -120 o54.5 -118 o55.5 -100 o53.5 -120 o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u54.5 -115 N/A N/A u55.5 -120 u54.5 even u54.5 -114 u54.5 -113 u55.5 -128 u53.5 -105 u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A N/A N/A N/A +124 +112 +114 +118 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A N/A N/A N/A -148 -143 -143 -144 N/A -152  
Final
Boston Celtics 505 Celtics
+1.5 -110 +0.5 -120 N/A -0.5 -105 -1.5 +110 -0.5 even +1.5 -141 +1.5 -139 +0.5 -120 -0.5 -105 +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 -0.5 -110 N/A +0.5 -125 +1.5 -140 +0.5 -120 -1.5 +107 -1.5 +108 -0.5 -102 +0.5 -120 -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o52 -115 N/A N/A N/A o51.5 -108 o51.5 -120 o51.5 -120 o51.5 -125 o51.5 -125 o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u52 -115 N/A N/A N/A u51.5 -112 u51.5 -113 u51.5 -112 u51.5 -102 u51.5 -110 u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A N/A -120 N/A -110 -103 even -108 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A N/A -110 N/A -110 -127 -127 -112 N/A -152  
Final
Boston Celtics 505 Celtics
+1.5 -110 -0.5 -110 N/A -0.5 -110 -1.5 +110 -0.5 -108 +1.5 -150 +1.5 -148 +0.5 -128 -0.5 -110 +3 -112  
Dallas Mavericks 506 Mavericks
-1.5 -110 +0.5 -120 N/A +0.5 -120 +1.5 -140 +0.5 -112 -1.5 +112 -1.5 +114 -0.5 +104 +0.5 -115 -3 -108  
Final
Boston Celtics 505 Celtics
o212 -110 o51.5 -110 N/A N/A N/A o51.5 -108 o51.5 -117 o51.5 -115 o51.5 -100 o50.5 -120 o213.5 -108  
Dallas Mavericks 506 Mavericks
u212 -110 u51.5 -120 N/A N/A N/A u51.5 -112 u51.5 -117 u51.5 -115 u51.5 -128 u50.5 -110 u213.5 -112  
Final
Boston Celtics 505 Celtics
+102 N/A N/A N/A N/A -120 -108 -107 -112 N/A +128  
Dallas Mavericks 506 Mavericks
-120 N/A N/A N/A N/A even -121 -120 -108 N/A -152  

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NBA Finals Game 3 Prediction & Picks

Very few things went right for Boston in the most recent meeting between these two teams, aside from a surprisingly dominant performance by Jrue Holiday (26 PTS, 79% FG). The Celtics shot a combined 10-of-39 (25.6%) from 3-point range in Game 2, Jayson Tatum couldn’t buy a basket (18 PTS, 27% FG), it seemed like nobody could stop Luka Doncic (32 PTS, 57%), and most notably, Kristaps Porzingis exited late for Boston after appearing to re-aggravate a leg injury that kept him sidelined for 10-of-14 playoff matchups prior to the Finals.

With that in mind, however, the Celtics still managed to win and cover the spread in Game 2 thanks to the Mavs’ supporting cast failing to make a meaningful contribution in a second straight loss. Doncic scored 32 of the Mavs’ 95 points on 12-of-21 (57.1%) from the field and 4-of-9 (44.4%) from 3-point range in Sunday’s contest. However, aside from Luka, Dallas couldn’t get anything going on offense, as the rest of the Mavs’ rotation combined for only 66 points on 44.1% shooting and 11.8% from long range in Game 2, resulting in a 7-point defeat.

The final margin of deficit in Game 2 may be a little bit misleading, though. Boston led by a score of 103-98 with 54 seconds left in the fourth quarter, and after a strong defensive possession in a key moment, the Mavericks managed to leak out for a fast break led by PJ Washington, who drove hard to the basket and was clearly pushed from behind by Jaylen Brown on the play -- which, hypothetically, would’ve given him a pair of free throws with a chance to cut the lead to three in crunch time. But instead, no foul was called, and the Celtics extended the lead to seven on the following possession to officially put the game out of reach.

Push comes to shove, however, the Mavericks have nobody to blame except themselves. There’s no excuse for the amount of free throws they missed in Game 2, and although it may seem like a rather oversimplified explanation, Dallas’s inefficiency at the charity stripe was the main factor that held them back from stealing Game 2. The Mavs made 16-of-24 (66.7%) free throw attempts in the latest meeting between these two teams, while the Celtics made 19-of-20 (95%). So, in theory, the Mavs would’ve been much better positioned to steal the win if they made their free throws at a normal clip (or, if somebody else helped in the scoring department besides Luka).

The Mavs’ shooting numbers will likely regress back toward the mean at home. However, that isn’t the only reason why I’m picking them in Wednesday’s contest. The main reason I like Dallas to win Game 3 is because of the latest injury to Kristaps Porzingis, who has played an enormous role in Boston taking a 2-0 lead in this series.

The Celtics are already thin in the frontcourt, even when they are fully healthy. Whenever Porzingis is sidelined, Al Horford shifts into the starting lineup, while small-ball lineups usually fill in the gaps as the 38-year-old veteran rests, which has been a disaster for Boston in the paint defensively for most of the playoffs. Prior to the Finals, the Celtics surrendered the 3rd-worst opponent field goal percentage within five feet of the basket (68.5%) throughout the postseason.

Porzingis says he's going to play in Game 3, but if he's anything less than 100% healthy and unable to protect the rim at an elite level moving forward, that will likely be enough to move the needle back toward Dallas's direction, and he certainly didn't look healthy in his final minutes of Game 2; exited with 4:40 left in game, did not return.

Porzingis came off the Boston bench in Games 1 and 2, and the Celtics posted a point differential +25 in his 44 minutes of runtime in those two contests. While contrarily, they posted a point differential of only +8 in 58 minutes with Horford on the court.

A key part of slowing down the Mavs’ offense is the ability to protect the rim, and the Celtics struggled to do so during stints without Porzingis early in this series. Dallas has slammed home a total of 127 dunks this postseason, which leads all playoff teams by a wide margin in that particular department. The Mavs immediately jumped out to a 13-6 lead without Porzingis on the floor to start Game 2, but the Celtics quickly narrowed the gap once Porzingis entered, as they closed the first quarter at a score of 28-25.

Motivation will be a factor for Dallas in Game 3. The Mavs currently trail Boston two games-to-none, and they'll desperately want to avoid an insurmountable three-game deficit in their first home game of the series. Homecourt advantage should also play a meaningful role for a Dallas supporting cast that struggled miserably on the road in Games 1 and 2. So, I’ll hold my breath and lay the points with the Mavs in Game 3.

Pick: Mavericks -1.5 (-110)

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NBA Finals Game 3 Time & TV Channel

Date: Wednesday, June 12
Matchup: Southwest vs. Atlantic
Venue: American Airlines Center
Location: Dallas, TX
Time-TV: ABC, 8:30 p.m. ET

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Celtics vs Mavericks Betting Stats

1) Boston Celtics
(1st Place, Atlantic)

  • Odds to Win Series: -1000
  • SU: 64-18
  • ATS: 43-38-1
  • O/U: 37-44-1
  • PPG: 120.6
  • OPPG: 109.2

Click here for the latest betting trends and market movements for the NBA Finals from VegasInsider Senior Reporter Patrick Everson!

5) Dallas Mavericks
(1st Place, Southwest)

  • Odds to Win Series: +660
  • SU: 50-32
  • ATS: 48-34
  • O/U: 36-45-1
  • PPG: 117.9
  • OPPG: 115.6

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Michael Crosson

Michael Crosson

Michael Crosson began his time at VegasInsider as a freelance NBA writer back in 2019 while he continued to study Psychology and Biology at James Madison University. Following his graduation in 2021, Michael joined the team full-time, and he's been with VI ever since. Michael still writes NBA, NFL, and MLB for VI, as well as gambling industry news. He's also become a crucial part of our editorial production team. More from Michael Crosson
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