Chris Buescher landed the fastest speed Tuesday in the final day of a two-day Organizational Test for Monster Energy Series teams at Kansas Speedway.
Buescher drove the JTG Daugherty Racing No. 37 Chevrolet to a best speed of 185.989 mph on the 1.5-mile track, site of a NASCAR Playoff race on Oct. 21 ( 2 p.m. ET, NBC/NBC Sports App, MRN, SiriusXM NASCAR Radio). His speed was slightly slower than the 186.477 mph lap posted by Chase Elliott on Monday, the first day of the session.
Kyle Busch, last weekend’s winner at Richmond Raceway, was the only driver among the top three on both days of the Organizational Test. He was third-fastest on the Monday speed chart and posted the second-best lap on the closing day.
Defending series champion Martin Truex Jr. was fourth-fastest on Day 1, but his Furniture Row Racing team did not participate in the second-day session.
A dozen teams participated in Kansas testing. Drew Herring, Justin Allgaier and David Ragan were also there on behalf of TRD, GM Racing and Ford, respectively, driving wheel-force cars for further data collection for the manufacturers.
DAY 1 SPEEDS
| Rank | Driver | Team | Speed |
| 1 | Chase Elliott | Hendrick Motorsports | 186.477 mph |
| 2 | Jamie McMurray | Chip Ganassi Racing | 183.755 mph |
| 3 | Kyle Busch | Joe Gibbs Racing | 183.374 mph |
| 4 | Martin Truex Jr. | Furniture Row Racing | 183.076 mph |
| 5 | Joey Logano | Team Penske | 182.939 mph |
| 6 | Paul Menard | Wood Brothers Racing | 182.710 mph |
| 7 | Kurt Busch | Stewart-Haas Racing | 182.192 mph |
| 8 | Matt Kenseth | Roush Fenway Racing | 182.149 mph |
| 9 | Cole Custer | Rick Ware Racing | 181.873 mph |
| 10 | Chris Buescher | JTG Daugherty Racing | 181.513 mph |
| 11 | Ty Dillon | Germain Racing | 181.184 mph |
| 12 | Austin Dillon | Richard Childress Racing | 180.156 mph |
| 13 | Drew Herring | Toyota Wheel Force | 179.563 mph |
| 14 | Justin Allgaier | Chevrolet Wheel Force | 176.488 mph |
| 15 | David Ragan | Ford Wheel Force | 175.793 mph |
DAY 2 SPEEDS
| Rank | Driver | Team | Speed |
| 1 | Chris Buescher | JTG Daugherty Racing | 185.989 mph |
| 2 | Kyle Busch | Joe Gibbs Racing | 184.055 mph |
| 3 (tie) | Joey Logano | Team Penske | 183.237 mph |
| 3 (tie) | Kurt Busch | Stewart-Haas Racing | 183.237 mph |
| 5 | Chase Elliott | Hendrick Motorsports | 183.138 mph |
| 6 | Jamie McMurray | Chip Ganassi Racing | 182.933 mph |
| 7 | Cole Custer | Rick Ware Racing | 182.747 mph |
| 8 | Ty Dillon | Germain Racing | 182.525 mph |
| 9 | Austin Dillon | Richard Childress Racing | 181.702 mph |
| 10 | Paul Menard | Wood Brothers Racing | 181.696 mph |
| 11 | Matt Kenseth | Roush Fenway Racing | 180.880 mph |
| 12 | Drew Herring | Toyota Wheel Force | 178.891 mph |
| 13 | Justin Allgaier | Chevrolet Wheel Force | 177.731 mph |
| 14 | David Ragan | Ford Wheel Force | 176.056 mph |