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How Do I Race Multiclass in Iracing

Fast answer to how do i race multiclass in iracing for iRacing drivers: steps to join multiclass races, manage traffic, avoid penalties, and fix issues fast.

If you want a quick answer: join a multiclass event from the iRacing schedule, pick the right class/car, practice traffic and overtakes, and follow blue-flag and pit rules. You’re in the right place — below are the plain-language steps and fixes for common multiclass confusion.

Quick Answer — how do i race multiclass in iracing

Multiclass races run two or more car classes at the same time. To race them: pick a multiclass session in the Schedule or Race tab, select the correct car class from the class dropdown, run practice/qualifying to learn traffic, then race with clean overtakes and respect blue flags. Follow the on-track rules to avoid penalties.

What’s really going on

iRacing multiclass events mix faster and slower cars on track so you get real-world traffic and strategy. The faster class must overtake cleanly; the slower class must be predictable and hold its line where safe. iRacing tracks class splits, applies blue flags (warnings to let faster cars through), and enforces incident and contact penalties. If something seems off, it’s usually a class selection mistake, the wrong session type, or misunderstanding blue-flag behavior.

Note: SR means Safety Rating (how clean you drive). iRating is skill used for matchmaking. Both matter for eligibility in some series.

Step-by-step fix

Open the Schedule or Race tab and filter for “Multiclass” or look for event names that list two classes.
Click the event and use the Class dropdown to choose your class (for example: GT vs Prototype). The sim won’t auto-switch classes for you.
Join practice and qualifying first. Use at least one full lap with traffic to learn closing speeds and braking differences.
In sessions, enable mirrors and spotter/flag settings (Options → Spotter & Flags). Turn on blue-flag popups so you don’t miss faster cars behind you.
In the race, slower class: stay predictable—use consistent lines and lift early if a safer pass exists; don’t block late. Faster class: plan passes, use mirrors, avoid dives into corners unless gap is clear.
Check race settings: if you don’t see multiple classes, ensure the event is multiclass (not a combined or solo split) and you’re not in a league-only session where class selection is locked.
If you get penalty issues, review the replay to see if it was contact or track limits; practice clean exits and controlled passes to protect your SR.

Extra tips / checklist

Make sure you actually selected your class before entering the track — common mistake.
Practice short stint runs with mixed traffic to learn lap-time delta and where overtakes work.
Use the on-track spotter and blue-flag audio — it prevents surprise passes.
Don’t switch to a different car setup for traffic-heavy runs unless you know what you’re doing. A balanced setup helps in traffic.
If joining leagues, confirm class assignments and server rules; some leagues require setup or pit stop choices for each class.

FAQs

Q: Why don’t I see two classes in the session?
A: You’re probably in a single-class split or a practice session not configured for multiclass. Re-check the event listing and class dropdown.

Q: How do blue flags work in iRacing multiclass races?
A: Blue flags warn slower drivers that a faster car is approaching to lap them. Slower drivers should be predictable and yield safely; faster drivers still must execute safe passes.

Q: Will multiclass races hurt my SR or iRating?
A: Yes, incidents and contact can lower SR and affect iRating. Drive predictably in slower class and avoid risky dives in faster class to protect ratings.

Q: Can I change class during an event?
A: No — you pick your class when entering the session. To switch, leave and re-enter with the other class (if the event settings allow it).

Wrap-up

Multiclass in iRacing is mostly about choosing the right class, practicing with traffic, and following simple passing etiquette. Try one short multiclass race focusing on clean lap-to-lap consistency — you’ll improve quickly and avoid penalties.