The only thing that mattered today at the Indianapolis Motor Speedway were raw, unadulterated miles per hour. Unlike most of the running from Tuesday through Thursday where circulating in packs and working on race setups took place, Fast Friday—with 90 extra horsepower—was all about qualifying preparations.

It added new importance to monitoring the No-Tow Report speeds, which the NTT IndyCar Series’ timing and scoring team deliver by filtering out all laps that have less than a 10-second gap between cars around the 2.5-mile oval. If, for example, a driver is running nine seconds behind another car, that lap would be excluded from the NTR.

Only laps with a gap of 10 seconds or more—enough to be considered as free of an aerodynamic tow—make it onto the NTR, with the best of each driver’s NTR laps represented below from Fast Friday. Although the NTR list is by no means a guarantee each driver will qualify in a similar position on Saturday and Sunday, it does give a solid indicator of which cars have healthy speed and which drivers will be going to bed tonight with a lot on their minds.

1. Alexander Rossi – 231.598 – Honda
2. Graham Rahal – 231.518 – Honda
3. Pato O’Ward – 231.510 – Chevy
4. Scott Dixon – 231.502 – Honda
5. Takuma Sato – 231.379 – Honda
6. Colton Herta – 231.348 – Honda
7. Marcus Ericsson – 231.226 – Honda
8. Alex Palou – 231.208 – Honda
9. Santino Ferrucci – 230.924 – Honda
10. Ed Carpenter – 230.901 – Chevy
11. Jack Harvey – 230.772 – Honda
12. Tony Kanaan – 230.762 – Honda
13. Pietro Fittipaldi – 230.666 – Honda
14. Rinus VeeKay – 230.647 – Chevy
15. Stefan Wilson – 230.514 – Honda
16. Helio Castroneves – 230.512 – Honda
17. Josef Newgarden – 230.479 – Chevy
18. Conor Daly – 230.386 – Chevy
19. Dalton Kellett – 230.197 – Chevy
20. Scott McLaughlin – 230.037 – Chevy
21. Juan Pablo-Montoya – 229.956 – Chevy
22. Ryan Hunter-Reay – 229.910 – Honda
23. Marco Andretti – 229.908 – Honda
24. J.R. Hildebrand – 229.812 – Chevy
25. Ed Jones – 229.794 – Honda
26. Simon Pagenaud – 229.792 – Chevy
27. Felix Rosenqvist – 229.691 – Chevy
28. James Hinchcliffe – 229.584 – Honda
29. Sage Karam – 229.536 – Chevy
30. Simona de Silvestro – 229.477
31. Sebastian Bourdais – 229.426
32. Will Power – 229.163 – Chevy
33. Max Chilton – 229.086 – Chevy
34. Charlie Kimball – 226.743 – Chevy
35. R.C. Enerson – 226.055 – Chevy

A different performance metric related to qualifying was also produced, which shows the best four-lap averages. Unlike the NTR, the four-lap data does not account for laps during the qualifying simulations where a tow was provided. Dale Coyne Racing with Vasser Sullivan’s Ed Jones is a perfect example: P25 on the NTR, but P9 on the four-lap average, which reveals a big tow was involved.

Similar to the NTR, the top 12 below on the four-lap averages would not be well-served as a betting guide.

1. Marcus Ericsson – 231.950 – Honda
2. Colton Herta – 231.727 – Honda
3. Pato O’Ward – 231.522 – Chevy
4. Alexander Rossi – 230.999 – Honda
5. Stefan Wilson – 230.844 – Honda
6. Takuma Sato – 230.820 – Honda
7. Ed Carpenter – 230.424 – Chevy
8. Santino Ferrucci – 230.365 – Honda
9. Ed Jones – 230.252 – Honda
10. Rinus VeeKay – 230.234 – Chevy
11. Ryan Hunter-Reay 230.217 – Honda
12. Scott Dixon – 230.182 – Honda