2026 IndyCar radio broadcast schedule released

The NTT IndyCar Series is back on track for 2026! Select races, including the Indy 500 and NASCAR’s Brickyard 400, will air live on Thunder 103.9 WIMC starting on March 1st. Race coverage is presented by Lakeside Book Company. View the full broadcast schedule below. Note that all dates and times are subject to change.

Streets of St. Petersburg

Date: Sunday, March 1st.

Broadcast Start: 11:30 a.m.

Phoenix Raceway

Date: Saturday, March 7th.

Broadcast Start: 2:30 p.m.

Streets of Arlington

Date: Sunday, March 15th.

Broadcasting Start: 12:00 p.m.

Barber Motorsports Park

Date: Sunday, March 29th.

Broadcasting Start: 12:30 p.m.

Streets of Long Beach

Date: Sunday, April 19th.

Broadcasting Start: 5:00 p.m.

Indy Grand Prix

Date: Saturday, May 9th.

Broadcasting Start: 4:00 p.m.

110th Indianapolis 500

Date: Sunday, May 24th.

Broadcasting Start: 11:00 a.m.

Streets of Detroit

Date: Sunday, May 31st.

Broadcasting Start: 12:00 p.m.

World Wide Technology

Date: Sunday, June 7th.

Broadcasting Start: 8:30 p.m.

Road America

Date: Sunday, June 21st.

Broadcasting Start: 1:30 p.m.

NASCAR’s Pennzoil 250

Date: Saturday, July 25th.

Broadcasting Start: 1:30 p.m.

NASCAR’s Brickyard 400

Date: Sunday, July 26th.

Broadcasting Start: 1:00 p.m.

All times are in EST.