Iowa Corn 350 NASCAR Practice 5,1015,20,25 and 30-Lap Averages
| Driver | 10 Lap | 15 Lap | 20 Lap | 25 Lap | 30 Lap |
|---|---|---|---|---|---|
| Ryan Blaney | 1 | 1 | 1 | 1 | 1 |
| Christopher Bell | 2 | 2 | 2 | 2 | 2 |
| Joey Logano | 3 | 5 | 7 | 10 | 8 |
| Austin Cindric | 4 | 12 | 12 | 11 | 9 |
| Todd Gilliland | 5 | 3 | |||
| Ty Gibbs | 6 | 9 | 9 | 8 | 6 |
| Ross Chastain | 7 | 4 | 6 | 4 | 3 |
| John H Nemechek | 8 | 13 | 10 | 9 | |
| Josh Berry | 9 | 6 | 4 | 5 | 4 |
| Bubba Wallace | 10 | 11 | 11 | 12 | 11 |
| Tyler Reddick | 11 | 7 | 5 | 6 | 7 |
| William Byron | 12 | 8 | 3 | 3 | 5 |
| Chase Briscoe | 13 | 14 | 13 | ||
| Denny Hamlin | 14 | ||||
| Kyle Larson | 15 | 10 | 8 | 7 | 10 |
| Carson Hocevar | 16 | 15 | 17 | 17 | 19 |
| Chris Buescher | 17 | 20 | 22 | 20 | 17 |
| Zane Smith | 18 | 32 | |||
| Ricky Stenhouse Jr. | 19 | 18 | 14 | 13 | 14 |
| Alex Bowman | 20 | 19 | 16 | 14 | 12 |
| Austin Hill | 21 | 28 | 24 | 23 | |
| Chase Elliott | 22 | 17 | 20 | 19 | 21 |
| Ty Dillon | 23 | 16 | 19 | 18 | 16 |
| Daniel Suarez | 24 | 21 | 28 | ||
| AJ Allmendinger | 25 | 25 | |||
| Brad Keselowski | 26 | 22 | 15 | 16 | 13 |
| Cody Ware | 27 | 29 | 26 | 25 | 22 |
| Erik Jones | 28 | 24 | 21 | 22 | 18 |
| Shane van Gisbergen | 29 | 26 | 23 | 21 | 20 |
| Noah Gragson | 30 | 23 | 18 | 15 | 15 |
| Connor Zilisch | 31 | 27 | 25 | ||
| Austin Dillon | 32 | 30 | 29 | ||
| Michale McDowell | 33 | 31 | 27 | 24 | 23 |
| Riley Herbst | 34 | ||||
| Cole Custer | |||||
| Ryan Preece |
