As the 2025 CMS Sunday Night Truck Series enters its final stretch in iRacing, Iowa Speedway stands ready to separate the contenders from the pretenders.
The excitement continues to build in iRacing as the CMS Sunday Night Truck Series approaches its seventh race of the 2025 Season One. Set for Sunday, March 9th, racers will test their skills at the challenging Iowa Speedway in what promises to be a pivotal event before the season finale.
Race Day Breakdown
As the season nears its conclusion, competitors are making final preparations for the Iowa Speedway showdown. This event kicks off with a full hour of practice at 8:15 PM Eastern, giving drivers ample time to familiarize themselves with the track conditions. Following practice, qualifying begins at 9:15 PM with a quick 5-minute session where drivers will have just two laps to set their best time.
The main event starts at 9:25 PM Eastern, featuring a 175-lap battle that will run for approximately 1 hour and 55 minutes. With championship points on the line, every position gained could make the difference in the final standings.
Technical Specifications
Unlike some racing series, the CMS Sunday Night Truck Series features fixed setups, creating a level playing field where driver skill takes centre stage. For this event, all trucks will use the “iowa_oval” setup, eliminating any advantage from custom configurations.
This race will begin with a rolling start, and drivers will have one fast repair available should they encounter trouble on track. Weather conditions will be realistic, and the track state will be dynamic, evolving throughout the event as rubber is laid down and temperatures change.
Damage multiplier is set at 20x, which means drivers need to be particularly careful to avoid contact. Teams will have access to 100% maximum fuel and a total of 4 tire sets for the entire race, adding a strategic element to pit stop planning.
First Lap Caution
In keeping with safe racing practices, the entire first lap is designated as an Orange Zone (OZ). This means race officials will review any contact during this crucial opening lap with extra scrutiny. Drivers involved in questionable incidents may receive iRacing Incident Reports (IRRs) following post-race review.
This first lap caution highlights the league’s commitment to fair and clean racing, especially during the often chaotic opening moments when the field is tightly packed.
Joining the Action
For those interested in participating, this league operates separately from other CMS leagues on the iRacing platform. New racers can join by searching for League ID# 11327 within the iRacing interface or by posting in the dedicated trucks-discussion channel on the league’s communication platform.
The virtual date for the race session is set for September 7, 2025, with practice starting at 12:30 PM, qualifying at 2:00 PM, and the race beginning at 3:30 PM in the simulated environment.
- CMS Competiton Rules: General Competition Rules
- iRacing Official Sporting Code: iRacing Official Sporting Code
Championship Implications
As the second-to-last race of the season, performances at Iowa will significantly impact championship standings. Drivers near the top of the points will be looking to solidify their positions, while those further back have one of their final opportunities to make a move up the leaderboard.
With just one race remaining after Iowa, expect drivers to balance aggression with the need to finish strong. The combination of a challenging track, limited tire sets, and championship pressure should create an exciting night of racing for competitors and spectators alike.