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Scheduling News

2021 Season 1 Week 13 Series Announced

It’s almost time for Week 13! We’ve got a brand new list of both official and fun series competing as we get ready to deploy the 2021 Season 2 build. Week 13 is the bridge week between iRacing’s quarterly championships as we deploy new content and our latest build, and allows our users to compete in some new, fun, and offbeat challenges as they get ready for the next season.

New feature series for this edition of Week 13 include the Tin Top Tussle, as GT4s take on Hockenheim for the first time; the Shiny New Shakedown, featuring the all-new Super Late Model; Silly Send it, with the 1987 NASCAR Cup Series cars facing off with the Street Stocks; the GT3 Challenge (Fixed); and the Super Slide, featuring rallycross Supercars taking on dirt ovals.

The full list of series running this Week 13 is as follows:

Official Series


13th Week Street Stock Challenge
NASCAR iRacing Series – Open
NASCAR iRacing Series – Fixed
NASCAR iRacing Class C Series
NASCAR iRacing Class B Series


13th Week Mazda Cup
13th Week Ferrari GT3 Challenge
13thWeek Porsche Cup Series

Dirt Oval

13th Week Dirt Street Stock Challenge
13th Week DIRTcar UMP Modified Fixed

Dirt Road

13th Week iRacing RallyCross Series
13th Week Pro 2 Lite

Fun Series


Pickup Cup
Dallara Dash
Carburetor Cup


13th Week iRacing Figure GR8 – Global MX-5, Pro 2 Lite
13th Week Tube Frame Twister – ARCA
13th Week Battle of the Little Wings – iR01, PM18, FR2.0, USF2000
13th Week Ridiculousness – Riley DP, Lotus 79, Lotus 49, Spec Racer

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Dirt Oval

Sling Mud for Fun – Sprint Cars
13th Week Muddy Mess – Big Block Modifieds

Dirt Road

13th Week 2×4 Off Road Trucks Pro 4 and Pro 2 Multi-class

New Content and Features Series

13th Week Shiny New Shakedown – Super Late Model
13th Week Tin Top Tussle – GT4s at Hockenheim
13th Week Silly Send It – 1987 NASCAR Cup Series cars and Street Stocks
13th Week GT3 Challenge (Fixed)
13th Week Super Slide – RX Cars on Dirt Ovals

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