ABC’s “The Bachelorette” ruled as Monday’s top program among young adults, leapfrogging NBC’s potent “American Ninja Warrior,” which was a close second as it returned following a week off. Both shows were up vs. their performance on the comparable night a year ago.

According to preliminary Nielsen estimates, “The Bachelorette” averaged a 1.9 rating/7 share in adults 18-49 and 6.6 million viewers overall from 8 to 10 p.m., up a tenth from the prior two weeks and matching its best score since its regular-season premiere on May 18 (2.1). The dating show was up 27% (and perhaps more if it rounds up to a 2.0 as expected in the nationals) from the 1.5 it did on this night a year ago.

“Bachelorette” dominated its two-hour block in adults 18-34 (1.8/8) and also stood as Monday’s most-watched program overall.

“The Whispers” followed at 10 p.m. for ABC (1.0/3 in 18-49, 4.0 million viewers overall), up a tenth from last week to tie its second best score in four airings to date. On average, the new drama is adding 64% to its 18-49 rating and 43% in total viewers (about 2 million) in Live+3 data.

At NBC, “American Ninja Warrior” (1.8/6 in 18-49, 6.1 million viewers overall) was down about 10% from its most recent airings (it should round up to a 1.9 in the nationals) but continues to have a strong summer; compared with last year at this time, it’s up 17% in 18-49 (2.1 vs. 1.8 in “most current” prior to last night) and up 34% in total viewers (7.1 million vs. 5.3 million). It was preempted last Monday for NBC Sports’ coverage of hockey’s Stanley Cup Final.

Also back after a week away, 10 p.m. rookie “The Island” (1.1/4 in 18-49, 3.6 million viewers overall) held at the rating for its prior two airings, which was just a tenth below its May 25 premiere.

NBC and ABC tied for the night’s lead among adults 18-49, with the Peacock dominating among men and the Alphabet prevailing with women.

Elsewhere, Fox’s “So You Think You Can Dance” took a tumble (0.9/3 in 18-49, 3.3 million viewers overall), falling 31% (0.4) from the previous week to its season low.

CBS nearly caught “Dance” in 18-49 from 8 to 10 p.m. with its repeats of “2 Broke Girls” (0.8/3 in 18-49, 4.6 million viewers overall), “Mike & Molly” (0.9/3 in 18-49, 4.8 million viewers overall) and “Scorpion” (0.8/3 in 18-49, 4.5 million viewers overall). A repeat “NCIS: Los Angeles” closed out the night with a 0.8/3 in 18-49 while drawing 6.3 million total viewers.

CW aired repeats of “The Originals” (0.3/1 in 18-49, 1.1 million viewers overall) and “Jane the Virgin” (0.3/1 in 18-49, 1.1 million viewers overall).

Preliminary 18-49 averages for the night: ABC and NBC, 1.6/6; Fox, 0.9/3; CBS and Univision, 0.8/3; Telemundo, 0.6/2; CW, 0.3/1.

In total viewers: ABC, 5.7 million; CBS and NBC, 5.2 million; Fox, 3.3 million; Univision, 2.2 million; Telemundo, 1.4 million; CW, 1.1 million.

    TV Ratings Monday, June 23, 2015
    18-49 ratings/share
  1. 1.

    The Bachelorette

    (8:00 ABC)

    6.6 Million Viewers
  2. 2.

    American Ninja Warrior

    (8:00 NBC)

    3.3 Million Viewers
  3. 3.

    The Island

    (10:00 NBC)

    3.6 Million Viewers
  4. 4.

    The Whispers

    (10:00 ABC)

    4.0 Million Viewers
  5. 5.

    Mike & Molly-r

    (8:30 CBS)

    4.8 Million Viewers