| 1 | Wed Oct 19 | at Suns | L105-107 | 0-1 | .000 | ESPN | Footprint Center · Phoenix, AZ |
| 2 | Sat Oct 22 | vs Grizzlies | W137-96 | 1-1 | .500 | NBA TV | American Airlines Center · Dallas, TX |
| 3 | Tue Oct 25 | at Pelicans | L111-113 | 1-2 | .333 | TNT | Smoothie King Center · New Orleans, LA |
| 4 | Thu Oct 27 | at Nets | W129-125 (OT) | 2-2 | .500 | NBA TV | Barclays Center · Brooklyn, NY |
| 5 | Sat Oct 29 | vs Thunder | L111-117 (OT) | 2-3 | .400 | | American Airlines Center · Dallas, TX |
| 6 | Sun Oct 30 | vs Magic | W114-105 | 3-3 | .500 | | American Airlines Center · Dallas, TX |
| 7 | Wed Nov 2 | vs Jazz | W103-100 | 4-3 | .571 | | American Airlines Center · Dallas, TX |
| 8 | Fri Nov 4 | vs Raptors | W111-110 | 5-3 | .625 | | American Airlines Center · Dallas, TX |
| 9 | Mon Nov 7 | vs Nets | W96-94 | 6-3 | .667 | | American Airlines Center · Dallas, TX |
| 10 | Wed Nov 9 | at Magic | L87-94 | 6-4 | .600 | | Amway Center · Orlando, FL |
| 11 | Thu Nov 10 | at Wizards | L105-113 | 6-5 | .545 | | Capital One Arena · Washington, D.C. |
| 12 | Sat Nov 12 | vs Blazers | W117-112 | 7-5 | .583 | | American Airlines Center · Dallas, TX |
| 13 | Tue Nov 15 | vs Clippers | W103-101 | 8-5 | .615 | | American Airlines Center · Dallas, TX |
| 14 | Wed Nov 16 | vs Rockets | L92-101 | 8-6 | .571 | | American Airlines Center · Dallas, TX |
| 15 | Fri Nov 18 | vs Nuggets | W127-99 | 9-6 | .600 | | American Airlines Center · Dallas, TX |
| 16 | Sun Nov 20 | vs Nuggets | L97-98 | 9-7 | .563 | | American Airlines Center · Dallas, TX |
| 17 | Wed Nov 23 | at Celtics | L112-125 | 9-8 | .529 | ESPN | TD Garden · Boston, MA |
| 18 | Sat Nov 26 | at Raptors | L100-105 | 9-9 | .500 | | Scotiabank Arena · Toronto, ON |
| 19 | Sun Nov 27 | at Bucks | L115-124 | 9-10 | .474 | NBA TV | Fiserv Forum · Milwaukee, WI |
| 20 | Tue Nov 29 | vs Warriors | W116-113 | 10-10 | .500 | TNT | American Airlines Center · Dallas, TX |
| 21 | Thu Dec 1 | at Pistons | L125-131 (OT) | 10-11 | .476 | NBA TV | Little Caesars Arena · Detroit, MI |
| 22 | Sat Dec 3 | at Knicks | W121-100 | 11-11 | .500 | | Madison Square Garden · Manhattan, NY |
| 23 | Mon Dec 5 | vs Suns | W130-111 | 12-11 | .522 | NBA TV | American Airlines Center · Dallas, TX |
| 24 | Tue Dec 6 | at Nuggets | W116-115 | 13-11 | .542 | TNT | Ball Arena · Denver, CO |
| 25 | Fri Dec 9 | vs Bucks | L105-106 | 13-12 | .520 | ESPN | American Airlines Center · Dallas, TX |
| 26 | Sat Dec 10 | at Bulls | L115-144 | 13-13 | .500 | | United Center · Chicago, IL |
| 27 | Mon Dec 12 | vs Thunder | W121-114 | 14-13 | .519 | | American Airlines Center · Dallas, TX |
| 28 | Wed Dec 14 | vs Cavaliers | L90-105 | 14-14 | .500 | | American Airlines Center · Dallas, TX |
| 29 | Fri Dec 16 | vs Blazers | W130-110 | 15-14 | .517 | | American Airlines Center · Dallas, TX |
| 30 | Sat Dec 17 | at Cavaliers | L99-100 (OT) | 15-15 | .500 | | Rocket Mortgage FieldHouse · Cleveland, OH |
| 31 | Mon Dec 19 | at T-wolves | L106-116 | 15-16 | .484 | | Target Center · Minneapolis, MN |
| 32 | Wed Dec 21 | at T-wolves | W104-99 | 16-16 | .500 | | Target Center · Minneapolis, MN |
| 33 | Fri Dec 23 | at Rockets | W112-106 | 17-16 | .515 | | Toyota Center · Houston, TX |
| 34 | Sun Dec 25 | vs Lakers | W124-115 | 18-16 | .529 | ABC | American Airlines Center · Dallas, TX |
| 35 | Tue Dec 27 | vs Knicks | W126-121 (OT) | 19-16 | .543 | NBA TV | American Airlines Center · Dallas, TX |
| 36 | Thu Dec 29 | vs Rockets | W129-114 | 20-16 | .556 | | American Airlines Center · Dallas, TX |
| 37 | Sat Dec 31 | at Spurs | W126-125 | 21-16 | .568 | | AT&T Center · San Antonio, TX |
| 38 | Mon Jan 2 | at Rockets | W111-106 | 22-16 | .579 | | Toyota Center · Houston, TX |
| 39 | Thu Jan 5 | vs Celtics | L95-124 | 22-17 | .564 | TNT | American Airlines Center · Dallas, TX |
| 40 | Sat Jan 7 | vs Pelicans | W127-117 | 23-17 | .575 | | American Airlines Center · Dallas, TX |
| 41 | Sun Jan 8 | at Thunder | L109-120 | 23-18 | .561 | | Paycom Center · Oklahoma City, OK |
| 42 | Tue Jan 10 | at Clippers | L101-113 | 23-19 | .548 | | Intuit Dome · Inglewood, CA |
| 43 | Thu Jan 12 | at Lakers | W119-115 (2OT) | 24-19 | .558 | TNT | Crypto.com Arena · Los Angeles, CA |
| 44 | Sat Jan 14 | at Blazers | L119-136 | 24-20 | .545 | | Moda Center · Portland, OR |
| 45 | Sun Jan 15 | at Blazers | L123-140 | 24-21 | .533 | | Moda Center · Portland, OR |
| 46 | Wed Jan 18 | vs Hawks | L122-130 | 24-22 | .522 | ESPN | American Airlines Center · Dallas, TX |
| 47 | Fri Jan 20 | vs Heat | W115-90 | 25-22 | .532 | ESPN | American Airlines Center · Dallas, TX |
| 48 | Sun Jan 22 | vs Clippers | L98-112 | 25-23 | .521 | | American Airlines Center · Dallas, TX |
| 49 | Tue Jan 24 | vs Wizards | L126-127 | 25-24 | .510 | | American Airlines Center · Dallas, TX |
| 50 | Thu Jan 26 | at Suns | W99-95 | 26-24 | .520 | TNT | Footprint Center · Phoenix, AZ |
| 51 | Sat Jan 28 | at Jazz | L100-108 | 26-25 | .510 | | Vivint Arena · Salt Lake City, UT |
| 52 | Mon Jan 30 | vs Pistons | W111-105 | 27-25 | .519 | | American Airlines Center · Dallas, TX |
| 53 | Thu Feb 2 | vs Pelicans | W111-106 | 28-25 | .528 | | American Airlines Center · Dallas, TX |
| 54 | Sat Feb 4 | at Warriors | L113-119 | 28-26 | .519 | ABC | Chase Center · San Francisco, CA |
| 55 | Mon Feb 6 | at Jazz | W124-111 | 29-26 | .527 | | Vivint Arena · Salt Lake City, UT |
| 56 | Wed Feb 8 | at Clippers | W110-104 | 30-26 | .536 | ESPN | Intuit Dome · Inglewood, CA |
| 57 | Fri Feb 10 | at Kings | W122-114 | 31-26 | .544 | | Golden 1 Center · Sacramento, CA |
| 58 | Sat Feb 11 | at Kings | L128-133 (OT) | 31-27 | .534 | | Golden 1 Center · Sacramento, CA |
| 59 | Mon Feb 13 | vs T-wolves | L121-124 | 31-28 | .525 | | American Airlines Center · Dallas, TX |
| 60 | Wed Feb 15 | at Nuggets | L109-118 | 31-29 | .517 | | Ball Arena · Denver, CO |
| --all-star break-- |
| 61 | Thu Feb 23 | vs Spurs | W142-116 | 32-29 | .525 | | American Airlines Center · Dallas, TX |
| 62 | Sun Feb 26 | vs Lakers | L108-111 | 32-30 | .516 | ABC | American Airlines Center · Dallas, TX |
| 63 | Tue Feb 28 | vs Pacers | L122-124 | 32-31 | .508 | | American Airlines Center · Dallas, TX |
| 64 | Thu Mar 2 | vs 76ers | W133-126 | 33-31 | .516 | TNT | American Airlines Center · Dallas, TX |
| 65 | Sun Mar 5 | vs Suns | L126-130 | 33-32 | .508 | ABC | American Airlines Center · Dallas, TX |
| 66 | Tue Mar 7 | vs Jazz | W120-116 | 34-32 | .515 | | American Airlines Center · Dallas, TX |
| 67 | Wed Mar 8 | at Pelicans | L106-113 | 34-33 | .507 | ESPN | Smoothie King Center · New Orleans, LA |
| 68 | Sat Mar 11 | at Grizzlies | L108-112 | 34-34 | .500 | | FedExForum · Memphis, TN |
| 69 | Mon Mar 13 | vs Grizzlies | L88-104 | 34-35 | .493 | ESPN | American Airlines Center · Dallas, TX |
| 70 | Wed Mar 15 | at Spurs | W137-128 (OT) | 35-35 | .500 | | AT&T Center · San Antonio, TX |
| 71 | Fri Mar 17 | at Lakers | W111-110 | 36-35 | .507 | NBA TV | Crypto.com Arena · Los Angeles, CA |
| 72 | Mon Mar 20 | at Grizzlies | L108-112 | 36-36 | .500 | NBA TV | FedExForum · Memphis, TN |
| 73 | Wed Mar 22 | vs Warriors | L125-127 | 36-37 | .493 | ESPN | American Airlines Center · Dallas, TX |
| 74 | Fri Mar 24 | vs Hornets | L109-117 | 36-38 | .486 | | American Airlines Center · Dallas, TX |
| 75 | Sun Mar 26 | at Hornets | L104-110 | 36-39 | .480 | | Spectrum Center · Charlotte, NC |
| 76 | Mon Mar 27 | at Pacers | W127-104 | 37-39 | .487 | NBA TV | Gainbridge Fieldhouse · Indianapolis, IN |
| 77 | Wed Mar 29 | at 76ers | L108-116 | 37-40 | .481 | ESPN | Wells Fargo Center · Philadelphia, PA |
| 78 | Sat Apr 1 | at Heat | L122-129 | 37-41 | .474 | NBA TV | Kaseya Center · Miami, FL |
| 79 | Sun Apr 2 | at Hawks | L130-132 (OT) | 37-42 | .468 | NBA TV | State Farm Arena · Atlanta, GA |
| 80 | Wed Apr 5 | vs Kings | W123-119 | 38-42 | .475 | | American Airlines Center · Dallas, TX |
| 81 | Fri Apr 7 | vs Bulls | L112-115 | 38-43 | .469 | | American Airlines Center · Dallas, TX |
| 82 | Sun Apr 9 | vs Spurs | L117-138 | 38-44 | .463 | | American Airlines Center · Dallas, TX |