Justin Allgaier at Chicagoland
Justin Allgaier has made 13 NASCAR O'Reilly Series starts at Chicagoland since 2009, with 2 wins, 9 top 10s and an average finish of 9.2.
Totals at Chicagoland by series
| Series | Starts | Wins | Top 5 | Top 10 | Laps led | Avg finish | Avg start | Best finish |
|---|
| Cup Series | 3 | 0 | 0 | 0 | 0 | 25.7 | 31 | 23 |
| O'Reilly Series | 13 | 2 | 4 | 9 | 27 | 9.2 | 12.6 | 1 |
Every start at Chicagoland
| Date | Race | Series | Start | Finish | Laps led | Status |
|---|
| July 4, 2026 | 2026 Chicagoland, July 4 | O'Reilly Series | 17 | 6 | 0 | Running |
| June 29, 2019 | 2019 Camping World 300 | Xfinity Series | 4 | 32 | 0 | Crash |
| June 30, 2018 | 2018 Overton's 300 | Xfinity Series | 18 | 7 | 0 | Running |
| September 16, 2017 | 2017 TheHouse.com 300 | Xfinity Series | 14 | 1 | 15 | Running |
| September 17, 2016 | 2016 Drive for Safety 300 | Xfinity Series | 3 | 5 | 3 | Running |
| September 20, 2015 | 2015 myAFibRisk.com 400 | Cup Series | 31 | 23 | 0 | |
| September 14, 2014 | 2014 MyAFibStory.com 400 | Cup Series | 26 | 27 | 0 | Running |
| September 15, 2013 | 2013 GEICO 400 | Cup Series | 36 | 27 | 0 | Running |
| September 14, 2013 | 2013 Dollar General 300 Powered by Coca-Cola | Xfinity Series | 20 | 12 | 0 | Running |
| July 21, 2013 | 2013 STP 300 | Xfinity Series | 16 | 8 | 0 | Running |
| September 15, 2012 | 2012 Dollar General 300 | Xfinity Series | 10 | 11 | 3 | Running |
| July 22, 2012 | 2012 STP 300 | Xfinity Series | 16 | 3 | 1 | Running |
| September 17, 2011 | 2011 Dollar General 300 | Xfinity Series | 13 | 14 | 0 | Running |
| June 4, 2011 | 2011 STP 300 | Xfinity Series | 13 | 1 | 1 | Running |
| July 9, 2010 | 2010 Dollar General 300 Powered by Coca-Cola | Xfinity Series | 11 | 10 | 4 | Running |
| July 10, 2009 | 2009 Dollar General 300 Powered by Coca-Cola | Xfinity Series | 9 | 10 | 0 | Running |