Scott, who won his first major title, is the first Australian to triumph at the Masters. The entire Masters coverage on Sunday averaged 254,200 viewers, better than anything in prime time.
The Masters also lifted the CBS lineup, which claimed the three most-watched programs to start in prime time: "60 Minutes" with 192,900 viewers, "The Amazing Race" with 126,600 and "The Good Wife" with 112,000. The Masters pushed back the CBS schedule by nearly one hour.
Rounding out the top five were "America's Funniest Home Videos" on ABC with 108,600 and "The Real Housewives of Atlanta" on Bravo with 83,200.
The MTV Movie Awards was No. 11 with 62,100 viewers.
Other programs of note: "Vikings" on History was No. 15 with 52,100 viewers; HBO's "Game of Thrones" was No. 25 with 44,400; and AMC's "Mad Men" was No. 46 with 31,900.
In updated national ratings, the Masters averaged 14.7 million viewers in the 7 p.m. hour. CBS won the night in total viewers and the 18-to-49 age group. In prime time, "60 Minutes" had 12.6 million viewers, "The Amazing Race" had 9.8 million and "The Good Wife" delivered 10.1 million.
The prime-time averages: CBS with 12.9 million, NBC with 4.5 million, ABC with 3.9 million and Fox with 3.5 million.
CBS said the final round of the Masters averaged a 9.4 household rating, up 18 percent from last year.