Here’s how MLB radio flagships fared in Nielsen Audio’s October 2025 survey period (September 18 – October 15). First though, the disclaimers and fin
Here’s how MLB radio flagships fared in Nielsen Audio’s October 2025 survey period (September 18 – October 15).
First though, the disclaimers and fine print.
Shares are total week – no specific day-parts with 6+ as the demo.
Several teams have two flagships – I arbitrarily picked the best performer, so one flagship per team.
Rather than a month-to-month comparison, I chose to contrast a flagship’s year-to-year fluctuation.
Formerly Oakland-based, the Athletics played in Sacramento for the first time in 2025 – I’m using its Sacramento flagship.
Unfortunately – there’s no flagship information for five teams, including the American League champion Blue Jays.
Playoffs began September 30th; the World Series concluded November 1st.
World Series (Dodgers beat Blue Jays, four games to three)
Los Angeles Dodgers: KLAC “AM 590 LA Sports,” 2.1 – 2.2, +.1, #21 to #19
Blue Jays: CJCL “Sports Net 590 The Fan” is not in a Nielsen Audio PPM-Market.
American League Championship Series (Blue Jays beat Mariners, four games to three)
Seattle Mariners: KIRO-AM “Seattle Sports 710 AM,” 3.4 – 9.1, +5.7, #11 to #1
American League Division Series (Mariners beat Tigers, three games to two)
Detroit Tigers: WXYT-FM “97.1 The Ticket,” 11.4 – 10.3, -1.1, unchanged at #1
American League Division Series (Blue Jays beat Yankees, three games to one)
New York Yankees: WFAN-FM “101.9 FM The Fan,” 3.3 – 3.5, +.2, #12 to #11
American League Wildcard (Tigers beat Guardians, two games to one)
Cleveland Guardians: WTAM “News Radio 1110 AM,” 6.2 – 8.7, +2.5, fourth to second
American League Wildcard (Yankees beat Red Sox, two games to one)
Boston Red Sox: WEEI-FM “93.7 Boston’s Sports Original,” 3.8 – 5.7, +1.9, #11 to #4
National League Championship Series (Dodgers beat Brewers, four games to none)
Milwaukee Brewers: WTMJ “620 Wisconsin’s Radio Station” did not subscribe to Nielsen Audio’s October 2025 sweep.
National League Division Series (Dodgers beat Phillies, three games to one)
Philadelphia Phillies: WIP “Sports Radio 94,” 9.8 – 9.2, -.6, unchanged at #1
National League Division Series (Brewers beat Cubs, three games to two)
Chicago Cubs: WSCR “670 The Score,” 2.7 – 4.0, +1.3, #13 to #6
National League Wildcard (Dodgers beat Reds, two games to none)
Cincinnati Reds: WLW “News Radio 700,” 8.3 – 10.9, +2.6, second to first
National League Wildcard (Cubs beat Padres, two games to one)
San Diego Padres: KWFN “97.3 The Fan,” 6.2 – 5.3, -.9, first to fifth
The following teams did not make post-season play in 2025:
Athletics: KSTE “Talk 650”/Sacramento, 3.5 – 4.8, +1.3, #11 to #5
Tampa Bay Rays: Sports Talk “AM 620 WDAE,” 1.6 – 2.8, +1.2, #18 to #15
Houston Astros: KTRH “AM 740 News Radio,” 4.0 – 4.7, +.7, unchanged at #8
Baltimore Orioles: WBAL “News Radio 1090 AM,” 3.0 – 3.5, +.5, #12 to #10
Texas Rangers: KRLD-FM “105.3 The Fan/”Dallas, 3.1 – 3.5, +.4, #15 to #12
Atlanta Braves: WCNN “Sports Radio 680 The Fan,” 3.3 – 1.4, -1.9, #13 to #21
St. Louis Cardinals: News/Talk KMOX “The Voice Of St. Louis,” 5.0 – 3.2, -1.8, #8 to #14
Minnesota Twins: WCCO “News Talk 830”/Minneapolis, 4.2 – 2.6, -1.6, #10 to #14
Colorado Rockies: KOA “News Radio 850 AM”/Denver, 4.4 – 3.0, -1.4 #9 to #18
Kansas City Royals: KFNZ-FM “96.5 The Fan,” 5.5- 4.1, -1.4, fourth to seventh
San Francisco Giants: KNBR “The Sports Leader,” 3.0 – 2.1, -.9, #12 to #15
Arizona Diamondbacks: KMVP-FM “Arizona Sports 98.7 FM”/Phoenix, 4.0 – 3.1, -.9, #7 to #14
Washington Nationals: WJFK-FM “106.7 The Fan,” 1.8 – 1.1, .7, flat at #18
Pittsburgh Pirates: KDKA-FM “93.7 The Fan,” 8.4 – 7.7, -.7, third to fourth
Miami Marlins: WINZ “Fox Sports 940,” .6 – .5, -.1, #27 to #29
Did not subscribe to and/or did not appear in Nielsen Audio’s October 2025 sweep:
New York Mets: WHSQ “880 AM ESPN New York”
Los Angeles Angels: KSPN “ESPN LA 710 AM”
Chicago White Sox: WMVP “1000 AM ESPN Chicago”
My recaps of all 48 PPM-markets from the October 2025 sweep were posted November 8th here at USARadioMuseum.com.
Contact me at Mike.Kinosian@gmail.com.
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