2009–10 Boston Celtics season Game log December

| Game | Date_ | Team | Score | High_points | High_rebounds | High_assists | Location_Attendance | Record |
|---|---|---|---|---|---|---|---|---|
| 22 | December 10 | @ Washington | W 104–102 (OT) | Rajon Rondo (21) | Kendrick Perkins (11) | Rajon Rondo (11) | Verizon Center 20,173 | 18–4 |
| 23 | December 12 | @ Chicago | W 106–80 (OT) | Rajon Rondo (16) | Kevin Garnett (10) | Rajon Rondo (14) | United Center 21,257 | 19–4 |
| 24 | December 14 | @ Memphis | W 110–105 (OT) | Paul Pierce (19) | Kevin Garnett (8) | Rajon Rondo (9) | FedExForum 14,193 | 20–4 |
| 25 | December 18 | Philadelphia | L 97–98 (OT) | Kevin Garnett (21) | Kendrick Perkins (16) | Rajon Rondo (10) | TD Garden 18,624 | 20–5 |
| 26 | December 20 | Minnesota | W 122–104 (OT) | Paul Pierce (29) | Kendrick Perkins (11) | Rajon Rondo (15) | TD Garden 18624 | 21–5 |