Westbrook tops opening Tudor practice in Austin
Richard Westbrook led a Daytona Prototype-dominated first practice for the TUDOR Championship's penultimate round at Circuit of The Americas, when he lapped the 3.427-mile road course in 2min00.306sec
The Briton's Spirit of Daytona Corvette DP was less than one-tenth of a second ahead of Michael Shank Racing's Riley Ford EcoBoost, in the hands of Ozz Negri, but over half a second clear of third placed runner, Joao Barbosa's Action Express Racing Riley. The LMP cars, headed by Johannes van Overbeek's ESM Racing No. 2 car, were a full second slower.
Results
| Pos | CPos | No | Class | Drivers | Time | Speed | Diff | Laps | Make |
| 1 | 1 | 90 | P | Westbrook/Valiante | 2:00.306 | 101.741 | 0.000 | 24 | Corvette DP |
| 2 | 2 | 60 | P | Negri Jr./Pew | 2:00.387 | 101.672 | 0.081 | 19 | Ford EcoBoost/Riley |
| 3 | 3 | 5 | P | Barbosa/Fittipaldi | 2:00.809 | 101.317 | 0.503 | 22 | Corvette DP |
| 4 | 4 | 01 | P | Pruett/Rojas | 2:01.187 | 101.001 | 0.881 | 17 | Ford EcoBoost/Riley |
| 5 | 5 | 10 | P | R.Taylor/J.Taylor | 2:01.225 | 100.969 | 0.919 | 20 | Corvette DP |
| 6 | 6 | 2 | P | Brown/van Overbeek | 2:01.338 | 100.875 | 1.032 | 22 | HPD ARX-03b |
| 7 | 7 | 42 | P | Yacaman/Brundle | 2:01.406 | 100.819 | 1.100 | 21 | Ligier HPD |
| 8 | 1 | 52 | PC | Jeannette/Montecalvo | 2:02.453 | 99.957 | 2.147 | 24 | ORECA FLM09 |
| 9 | 2 | 08 | PC | Hawksworth/Cumming | 2:02.584 | 99.850 | 2.278 | 26 | ORECA FLM09 |
| 10 | 3 | 09 | PC | Ende/Junqueira | 2:02.752 | 99.713 | 2.446 | 18 | ORECA FLM09 |
| 11 | 4 | 54 | PC | Bennett/Braun | 2:02.790 | 99.682 | 2.484 | 23 | ORECA FLM09 |
| 12 | 5 | 8 | PC | Schultis/van der Zande | 2:03.379 | 99.207 | 3.073 | 23 | ORECA FLM09 |
| 13 | 8 | 31 | P | Curran/Said | 2:03.634 | 99.002 | 3.328 | 20 | Corvette DP |
| 14 | 6 | 25 | PC | Diaz/Rayhall | 2:04.040 | 98.678 | 3.734 | 18 | ORECA FLM09 |
| 15 | 7 | 7 | PC | Fuentes/Jo.Martin | 2:04.495 | 98.317 | 4.189 | 24 | ORECA FLM09 |
| 16 | 8 | 38 | PC | Ostella/French | 2:04.572 | 98.256 | 4.266 | 26 | ORECA FLM09 |
| 17 | 9 | 85 | PC | C.Miller/Simpson | 2:04.605 | 98.230 | 4.299 | 23 | ORECA FLM09 |
| 18 | 1 | 910 | GTLM | Makowiecki/Pilet | 2:04.844 | 98.042 | 4.538 | 23 | Porsche 911 RSR |
| 19 | 2 | 912 | GTLM | P.Long/Christensen | 2:05.102 | 97.840 | 4.796 | 22 | Porsche 911 RSR |
| 20 | 3 | 911 | GTLM | Tandy/Bergmeister | 2:05.230 | 97.740 | 4.924 | 22 | Porsche 911 RSR |
| 21 | 9 | 07 | P | Joel.Miller/Nunez | 2:05.292 | 97.692 | 4.986 | 18 | Mazda Prototype |
| 22 | 4 | 93 | GTLM | Bomarito/Wittmer | 2:05.519 | 97.515 | 5.213 | 21 | Dodge Viper SRT |
| 23 | 5 | 55 | GTLM | Auberlen/Priaulx | 2:05.563 | 97.481 | 5.257 | 19 | BMW Z4 GTE |
| 24 | 10 | 87 | PC | Plowman/Drumwright | 2:05.570 | 97.476 | 5.264 | 20 | ORECA FLM09 |
| 25 | 10 | 70 | P | Tremblay/T.Long | 2:05.678 | 97.392 | 5.372 | 21 | Mazda Prototype |
| 26 | 6 | 56 | GTLM | Müller/J.Edwards | 2:05.739 | 97.344 | 5.433 | 23 | BMW Z4 GTE |
| 27 | 7 | 91 | GTLM | D.Farnbacher/Goossens | 2:05.787 | 97.307 | 5.481 | 19 | Dodge Viper SRT |
| 28 | 8 | 62 | GTLM | Fisichella/Kaffer | 2:06.289 | 96.921 | 5.983 | 25 | Ferrari F458 Italia |
| 29 | 9 | 3 | GTLM | Magnussen/Garcia | 2:06.344 | 96.878 | 6.038 | 22 | Chevrolet Corvette C7.R |
| 30 | 10 | 17 | GTLM | Henzler/Sellers/Holzer | 2:06.423 | 96.818 | 6.117 | 22 | Porsche 911 RSR |
| 31 | 11 | 88 | PC | Papadopoulos/Mowlem | 2:06.621 | 96.666 | 6.315 | 19 | ORECA FLM09 |
| 32 | 11 | 4 | GTLM | Gavin/Milner | 2:07.198 | 96.228 | 6.892 | 24 | Chevrolet Corvette C7.R |
| 33 | 1 | 007 | GTD | Carter/J.Davison | 2:09.815 | 94.288 | 9.509 | 20 | Aston Martin V12 Vantage |
| 34 | 2 | 27 | GTD | Dempsey/A.Davis | 2:10.055 | 94.114 | 9.749 | 22 | Porsche 911 GT America |
| 35 | 3 | 300 | GTD | Cameron/Palttala | 2:10.217 | 93.997 | 9.911 | 10 | BMW Z4 |
| 36 | 4 | 45 | GTD | Canache Jr./Pumpelly | 2:10.305 | 93.933 | 9.999 | 20 | Audi R8 LMS |
| 37 | 5 | 58 | GTD | Snow/Heylen | 2:10.369 | 93.887 | 10.063 | 24 | Porsche 911 GT America |
| 38 | 6 | 44 | GTD | Potter/Lally | 2:10.453 | 93.827 | 10.147 | 24 | Porsche 911 GT America |