2009–10 Dallas Mavericks season Game log December

| Game | Date_ | Team | Score | High_points | High_rebounds | High_assists | Location_Attendance | Record |
|---|---|---|---|---|---|---|---|---|
| 19 | December 2 | @ New Jersey | W 117–101 (OT) | Dirk Nowitzki (24) | Erick Dampier (11) | Jason Kidd (10) | IZOD Center 11,689 | 14-5 |
| 20 | December 4 | @ Memphis | L 82–98 (OT) | Jason Terry (18) | Shawn Marion (11) | Jason Kidd (7) | FedExForum 13,020 | 14-6 |
| 21 | December 5 | Atlanta | L 75–80 (OT) | Dirk Nowitzki (32) | Erick Dampier (12) | Jason Kidd (6) | American Airlines Center 19,550 | 14-7 |
| 22 | December 8 | Phoenix | W 102–101 (OT) | Dirk Nowitzki (33) | Dirk Nowitzki (8) | Jason Kidd (11) | American Airlines Center 19,857 | 15-7 |