CBS raced to a Tuesday victory in viewers and key demographics as the two-hour finale of THE AMAZING RACE delivered its biggest audience of the season, according to Nielsen preliminary ratings for Dec. 13.

From 9:00-11:00 PM , THE AMAZING RACE finale won its time period in households (7.0/11), viewers (11.37m), adults 18-49 (4.6/12), adults 25-54 (5.4/13) and tied for first in adults 18-34 (3.4/10).  This is the best viewer delivery for any episode of this edition of THE AMAZING RACE, and matches the best adults 18-49 and adults 25-54 deliveries.

NCIS dominated its time period in households (10.7/17), viewers (16.77m), adults 18-49 (4.2/12) and adults 25-54 (5.7/14). 

For the night, CBS was first in households (8.3/13), viewers (13.17m), adults 18-49 (4.5/12) and adults 25-54 (5.5/13).

Final Tuesday ratings will be available this afternoon.