The Radical Cup North America 2026 season brings five action-packed rounds to circuits across the United States, and this complete motorsport calendar guide tells you exactly when and where to watch every session. Running from April through September, this thrilling sportscar series showcases Radical Motorsport’s legendary machinery—from one of the world’s most prolific race car manufacturers with over 3,000 cars produced since 1997. Whether you’re tracking the racing timetable or searching for a reliable live motorsport stream, this guide has everything you need.
Quick Facts: Radical Cup North America 2026 Season
- Series: Radical Cup North America (Rad NA)
- Category: Sportscars
- Season Dates: 10 April – 6 September 2026
- Total Rounds: 5
- Region: United States
- How to Watch: Live racing stream available in The Racing Line app
When Does the Radical Cup North America 2026 Season Start?
The Radical Cup North America 2026 season kicks off on 10-12 April 2026 at Sonoma Raceway in California. This opening round sets the tone for an exciting championship battle across five prestigious American circuits. Mark your motorsport calendar now—this is one racing timetable you won’t want to miss.
How Many Rounds in the Radical Cup North America 2026 Racing Calendar?
The complete Radical Cup North America 2026 racing calendar features five rounds spanning six months of competition. Here’s the full schedule:
- Round 1: USAC Sonoma — Sonoma (IndyCar Circuit), United States · 10-12 April 2026
- Round 2: XPEL Grand Prix — Road America (Grand Prix Circuit), United States · 19-21 June 2026
- Round 3: WRL / Radical Road Atlanta — Road Atlanta (Grand Prix Circuit), United States · 23-26 July 2026
- Round 4: USAC Lime Rock — Lime Rock Park (Road Course with chicanes), United States · 8-9 August 2026
- Round 5: Lone Star Le Mans — Circuit of the Americas (Grand Prix Circuit), United States · 4-6 September 2026
This motorsport timetable delivers racing at some of America’s most iconic venues, from the rolling hills of Sonoma to the challenging turns of Road Atlanta and the world-renowned Circuit of the Americas.
What Time Does Radical Cup North America Race? Timezone Conversions
Keeping track of session times across different time zones can be challenging. Here’s a general conversion guide for typical race start times (assuming a 2:00 PM local US start):
For West Coast rounds (Sonoma, Laguna Seca):
- US Pacific (PT): 2:00 PM
- US Eastern (ET): 5:00 PM
- UK (BST): 10:00 PM
- Central Europe (CEST): 11:00 PM
- Australia Eastern (AEST): 7:00 AM (+1 day)
For East Coast/Central rounds (Road America, Road Atlanta, Lime Rock, COTA):
- US Eastern (ET): 2:00 PM
- US Pacific (PT): 11:00 AM
- UK (BST): 7:00 PM
- Central Europe (CEST): 8:00 PM
- Australia Eastern (AEST): 4:00 AM (+1 day)
Rather than calculating these racing timetables manually, download The Racing Line app at https://trlapp.com/app for automatic timezone conversions that update to your local time instantly.
Where to Watch Radical Cup North America 2026 Live Streams
Finding a reliable live motorsport stream for Radical Cup North America has never been easier. The Racing Line app is your primary destination for watching every session, with the live racing stream built directly into the app itself.
Why The Racing Line app is the best way to watch:
- Embedded live stream: Watch Radical Cup North America directly within the app—no switching between platforms
- Free access: The live motorsport stream is available at no cost on both iOS and Android
- No geo-blocking hassles: Stream races without worrying about regional restrictions
- All-in-one experience: The racing calendar, session times, and live stream in a single location
Download The Racing Line app at https://trlapp.com/app and never miss a moment of Radical Cup North America action.
How Do I Get Radical Cup North America Racing Timetable Notifications?
Missing a race because you forgot the start time is frustrating. The Racing Line app solves this with Smart Notifications—customisable alerts that ensure you’re always ready when the lights go green.
Set up your alerts to:
- Receive reminders before qualifying and race sessions
- Choose your preferred lead time (15 minutes, 1 hour, or more)
- Select which session types matter most to you
- Follow Radical Cup North America alongside 220+ other series in one motorsport calendar
With The Racing Line’s comprehensive racing timetable notifications, you’ll never miss another session—whether it’s the season opener at Sonoma or the finale at COTA.
Your Complete Radical Cup North America 2026 Motorsport Calendar Companion
Radical Motorsport has cemented its place in racing history through decades of creating race-bred, customer-focused machinery. The Radical Cup North America series captures that spirit perfectly, delivering close competition and thrilling sportscar racing throughout the 2026 season.
From tracking every round on the racing calendar to accessing the live motorsport stream and receiving timely notifications, The Racing Line app provides everything you need in one free download. With 220+ series available—including Radical Cup North America—it’s the ultimate companion for any motorsport fan.
Download The Racing Line on iOS and Android: https://trlapp.com/app
Your 2026 Radical Cup North America journey starts here. Add the series to your personal motorsport timetable today and experience every race from Sonoma to the Lone Star Le Mans at COTA.
