Paul Menard has the fastest practice speed during practice 2 of 188.772 mph for the 2014 NASCAR Cup Series MyAFibStory.com 400 at Chicagoland Speedway.
The practice speeds table shows the fastest lap during practices.
|Driver||From Lap||To Lap||Average Speed|
|Martin Truex Jr||22||31||182.508|
Cars must run 10 consecutive laps on the track to be included in this table.