NASCAR Cup Series stars Kyle Larson and Tyler Reddick were among the drivers hit with a penalty during Sunday's race at Chicagoland Speedway.

While all cars cleared post-race technical inspection without issue and Chase Briscoe's win was made official, the race officials were kept busy during the action, with a total of 21 penalties recorded on NASCAR's infraction sheet.

This included a tail-end penalty for Larson for pitting before pit road was open on lap 96, and a pass-through penalty for Reddick after a tire violation on lap 233.

Pitting before pit road was open was the most common infraction during the race, with 14 penalties handed out as a result.

Elsewhere, NASCAR also issued penalties for speeding on pit road and for having too many crew members in contact with the pit service area.

READ MORE: Denny Hamlin extends NASCAR Cup Series standings lead as Tyler Reddick suffers Chicagoland DNF

NASCAR Chicagoland Speedway penalty report

Here is the full in-race penalty report from Sunday's eero 400 at Chicagoland Speedway.

NASCAR Chicagoland penalty report
Lap Driver Infraction Penalty NASCAR Notes
Pre-Race Michael McDowell (#71) Pre-Race to the Rear Tail End Multiple Inspection Failures
Pre-Race Michael McDowell (#71) Pre-Race to the Rear Pass Through Multiple Inspection Failures
3 Ryan Preece (#60) Pitting before pit road is open Tail End N/A
5 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
33 Connor Zilisch (#38) Pitting before pit road is open Tail End N/A
36 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
47 Austin Hill (#33) Pitting before pit road is open Tail End Garage
52 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
84 Christopher Bell (#20) Too many crew member(s) in contact with pit service area Tail End N/A
87 Christopher Bell (#20) Pitting before pit road is open Tail End N/A
95 Connor Zilisch (#38) Pitting before pit road is open Tail End N/A
95 Connor Zilisch (#38) Too many crew member(s) in contact with pit service area Tail End N/A
96 Kyle Larson (#5) Pitting before pit road is open Tail End N/A
98 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
98 Ty Dillon (#10) Pitting before pit road is open Tail End N/A
142 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
168 Connor Zilisch (#38) Tire violation Tail End N/A
171 JJ Yeley (#44) Pitting before pit road is open Tail End N/A
171 Ryan Preece (#60) Pitting before pit road is open Tail End N/A
209 JJ Yeley (#44) Speeding on pit road Pass Through N/A
233 Tyler Reddick (#45) Tire violation Pass Through N/A

READ MORE: Chase Briscoe on top at Chicagoland in stunning 1-2-3 JGR finish