Kyle Busch was the fastest in the opening round of practice at Chicagoland Speedway.
The speed chart saw a flurry of activity late as drivers went to fresh tires and climbed up the pylon. Busch’s fastest lap came on his 21st and final run around the 1.5-mile track.
For a full list of speeds for the opening round of practice for the MyAFibStory400.com you can scroll down.
Speed Chart for Opening Practice round at Chicagoland
| RANK | CAR | DRIVER | TIME | SPEED | LAP | TOTAL | |
| 1 | 18 | Kyle Busch | 28.207 | 191.442 | 21 | 21 | 28.207 |
| 2 | 31 | Ryan Newman | 28.266 | 191.042 | 14 | 14 | 28.266 |
| 3 | 99 | Carl Edwards | 28.269 | 191.022 | 9 | 9 | 28.269 |
| 4 | 17 | Ricky Stenhouse Jr. | 28.272 | 191.002 | 11 | 11 | 28.272 |
| 5 | 20 | Matt Kenseth | 28.287 | 190.9 | 27 | 27 | 28.287 |
| 6 | 15 | Clint Bowyer | 28.29 | 190.88 | 5 | 7 | 28.29 |
| 7 | 48 | Jimmie Johnson | 28.3 | 190.813 | 11 | 11 | 28.3 |
| 8 | 24 | Jeff Gordon | 28.309 | 190.752 | 19 | 21 | 28.309 |
| 9 | 27 | Paul Menard | 28.321 | 190.671 | 16 | 18 | 28.321 |
| 10 | 42 | Kyle Larson # | 28.331 | 190.604 | 22 | 26 | 28.331 |
| 11 | 1 | Jamie McMurray | 28.331 | 190.604 | 30 | 30 | 28.331 |
| 12 | 4 | Kevin Harvick | 28.334 | 190.584 | 1 | 11 | 28.334 |
| 13 | 88 | Dale Earnhardt Jr. | 28.336 | 190.57 | 30 | 30 | 28.336 |
| 14 | 41 | Kurt Busch | 28.353 | 190.456 | 3 | 25 | 28.353 |
| 15 | 55 | Brian Vickers | 28.372 | 190.328 | 9 | 9 | 28.372 |
| 16 | 3 | Austin Dillon # | 28.372 | 190.328 | 19 | 21 | 28.372 |
| 17 | 47 | AJ Allmendinger | 28.408 | 190.087 | 14 | 14 | 28.408 |
| 18 | 10 | Danica Patrick | 28.435 | 189.907 | 15 | 17 | 28.435 |
| 19 | 5 | Kasey Kahne | 28.459 | 189.747 | 18 | 22 | 28.459 |
| 20 | 16 | Greg Biffle | 28.475 | 189.64 | 21 | 21 | 28.475 |
| 21 | 9 | Marcos Ambrose | 28.499 | 189.48 | 13 | 15 | 28.499 |
| 22 | 14 | Tony Stewart | 28.505 | 189.44 | 26 | 26 | 28.505 |
| 23 | 43 | Aric Almirola | 28.518 | 189.354 | 13 | 15 | 28.518 |
| 24 | 11 | Denny Hamlin | 28.53 | 189.274 | 24 | 28 | 28.53 |
| 25 | 2 | Brad Keselowski | 28.548 | 189.155 | 27 | 27 | 28.548 |
| 26 | 51 | Justin Allgaier # | 28.58 | 188.943 | 22 | 22 | 28.58 |
| 27 | 78 | Martin Truex Jr. | 28.586 | 188.904 | 22 | 22 | 28.586 |
| 28 | 22 | Joey Logano | 28.599 | 188.818 | 24 | 26 | 28.599 |
| 29 | 13 | Casey Mears | 28.659 | 188.422 | 24 | 26 | 28.659 |
| 30 | 38 | David Gilliland | 28.778 | 187.643 | 15 | 15 | 28.778 |
| 31 | 83 | Ryan Truex # | 28.962 | 186.451 | 7 | 9 | 28.962 |
| 32 | 95 | Michael McDowell | 29.001 | 186.2 | 10 | 14 | 29.001 |
| 33 | 26 | Cole Whitt # | 29.044 | 185.925 | 16 | 16 | 29.044 |
| 34 | 98 | Josh Wise | 29.072 | 185.746 | 10 | 13 | 29.072 |
| 35 | 36 | Reed Sorenson | 29.154 | 185.223 | 7 | 7 | 29.154 |
| 36 | 7 | Michael Annett # | 29.154 | 185.223 | 9 | 9 | 29.154 |
| 37 | 23 | Alex Bowman # | 29.18 | 185.058 | 8 | 12 | 29.18 |
| 38 | 40 | Landon Cassill(i) | 29.192 | 184.982 | 19 | 19 | 29.192 |
| 39 | 34 | David Ragan | 29.2 | 184.932 | 13 | 13 | 29.2 |
| 40 | 37 | Mike Bliss(i) | 29.225 | 184.773 | 5 | 5 | 29.225 |
| 41 | 66 | Joe Nemechek(i) | 29.637 | 182.205 | 1 | 3 | 29.637 |
| 42 | 33 | Travis Kvapil | 29.726 | 181.659 | 17 | 18 | 29.726 |
| 43 | 32 | Joey Gase(i) | 30.516 | 176.956 | 38 | 50 | 30.516 |
