# 2013 International Sports Car Weekend

The 2013 International Sports Car Weekend was a sports car race held at Circuit of the Americas in Austin, Texas on September 21, 2013. The race was the eighth round of the 2013 American Le Mans Series.

## Background
### Preview

American Le Mans Series (ALMS) president Scott Atherton confirmed the race was part of the schedule for the 2013 American Le Mans Series schedule in October 2012. It was the first year the event was held as part of the American Le Mans Series. The 2013 International Sports Car Weekend was the eighth of ten scheduled sports car races of 2013 American Le Mans Series. The race was held at the twenty-turn 3.426 mi (5.514 km) Circuit of the Americas in Austin, Texas on September 21, 2013. The event was run alongside the FIA World Endurance Championship event as a double-header.

## Qualifying
### Qualifying results

Pole positions in each class are indicated in bold and by ‡.
| Pos. | Class | No. | Entry | Driver | Time | Gap | Grid |
| 1 | P1 | 6 | Muscle Milk Pickett Racing | Lucas Luhr | 2:07.851 | — | 1‡ |
| 2 | P1 | 16 | Dyson Racing Team | Chris McMurry | 2:12.837 | +4.986 | 2 |
| 3 | P1 | 0 | DeltaWing Racing Cars | Andy Meyrick | 2:15.845 | +7.994 | 3 |
| 4 | P2 | 552 | Level 5 Motorsports | Marino Franchitti | 2:10.573 | +2.722 | 4‡ |
| 5 | P2 | 01 | Extreme Speed Motorsports | Anthony Lazzaro | 2:11.869 | +4.018 | 28 |
| 6 | P2 | 02 | Extreme Speed Motorsports | Johannes van Overbeek | 2:12.100 | +4.219 | 29 |
| 7 | P2 | 551 | Level 5 Motorsports | No Time Established | No Time Established | No Time Established | 5 |
| 8 | PC | 81 | DragonSpeed | Renger van der Zande | 2:17.865 | +10.014 | 6‡ |
| 9 | PC | 5 | Starworks Motorsport | Ryan Dalziel | 2:18.929 | +11.078 | 30 |
| 10 | PC | 8 | BAR1 Motorsports | Kyle Marcelli | 2:19.782 | +11.931 | 7 |
| 11 | PC | 9 | RSR Racing | Bruno Junqueira | 2:20.018 | +12.167 | 31 |
| 12 | PC | 05 | CORE Autosport | Tom Kimber-Smith | 2:20.340 | +12.489 | 8 |
| 13 | PC | 52 | PR1/Mathiasen Motorsports | Dane Cameron | 2:20.722 | +12.871 | 32 |
| 14 | PC | 18 | Performance Tech Motorsports | Tristan Nunez | 2:20.935 | +13.084 | 9 |
| 15 | PC | 7 | BAR1 Motorsports | Rusty Mitchell | 2:22.438 | +14.587 | 10 |
| 16 | GT | 55 | BMW Team RLL | Joey Hand | 2:17.178 | +9.327 | 11‡ |
| 17 | GT | 3 | Corvette Racing | Antonio García | 2:17.442 | +9.591 | 12 |
| 18 | GT | 4 | Corvette Racing | Oliver Gavin | 2:17.594 | +9.743 | 13 |
| 19 | GT | 56 | BMW Team RLL | John Edwards | 2:18.002 | +10.151 | 14 |
| 20 | GT | 06 | CORE Autosport | Patrick Long | 2:19.167 | +11.316 | 15 |
| 21 | GT | 93 | SRT Motorsports | Jonathan Bomarito | 2:19.246 | +11.395 | 16 |
| 22 | GT | 48 | Paul Miller Racing | Bryce Miller | 2:19.462 | +11.611 | 17 |
| 23 | GT | 62 | Risi Competizione | Matteo Malucelli | 2:19.834 | +11.983 | 33 |
| 24 | GT | 91 | SRT Motorsports | Marc Goossens | 2:20.088 | +12.237 | 18 |
| 25 | GT | 17 | Team Falken Tire | Bryan Sellers | 2:21.134 | +13.283 | 19 |
| 26 | GT | 23 | Team West/AJR/Boardwalk Ferrari | Townsend Bell | 2:21.704 | +13.853 | 20 |
| 27 | GTC | 66 | TRG | Damien Faulkner | 2:27.816 | +19.965 | 21‡ |
| 28 | GTC | 30 | NGT Motorsport | Sean Edwards | 2:27.880 | +20.029 | 22 |
| 29 | GTC | 22 | Alex Job Racing | Jeroen Bleekemolen | 2:27.920 | +20.069 | 23 |
| 30 | GTC | 27 | Dempsey Racing/Del Piero | Andy Lally | 2:28.533 | +20.682 | 24 |
| 31 | GTC | 44 | Flying Lizard Motorsports | Dion von Moltke | 2:28.618 | +20.767 | 25 |
| 32 | GTC | 11 | JDX Racing | Jan Heylen | 2:28.692 | +20.841 | 26 |
| 33 | GTC | 45 | Flying Lizard Motorsports | Spencer Pumpelly | 2:29.353 | +21.502 | 27 |
| Sources: ||||||||
Notes:
* ^1 – The No. 01 and Extreme Speed Motorsports, the No. 5 Starworks Motorsport, the No. 9 RSR Racing, the No. 52 PR1/Mathiasen Motorsports, and the No. 62 Risi Competizione Ferrari were sent to the rear of their respective class fields because their drivers did not meet minimum qualifying time.

## Race
### Race results

Class winners in bold and ‡. Cars failing to complete 70% of their class winner's distance are marked as Not Classified (NC).
| Pos | Class | No. | Team | Drivers | Chassis | Tire | Laps | Time/Retired |
| Pos | Class | No. | Team | Drivers | Engine | Tire | Laps | Time/Retired |
| 1 | P1 | 6 | Muscle Milk Pickett Racing | Klaus Graf Lucas Luhr | HPD ARX-03c | M | 83 | 2:45:05.710‡ |
| 1 | P1 | 6 | Muscle Milk Pickett Racing | Klaus Graf Lucas Luhr | Honda LM-V8 3.4 L V8 | M | 83 | 2:45:05.710‡ |
| 2 | P1 | 16 | Dyson Racing Team | Tony Burgess Chris McMurry | Lola B12/60 | M | 81 | +2 Laps |
| 2 | P1 | 16 | Dyson Racing Team | Tony Burgess Chris McMurry | Mazda MZR-R 2.0 L Turbo I4 (Isobutanol) | M | 81 | +2 Laps |
| 3 | P2 | 551 | Level 5 Motorsports | Scott Tucker Ryan Briscoe | HPD ARX-03b | M | 80 | +3 Laps‡ |
| 3 | P2 | 551 | Level 5 Motorsports | Scott Tucker Ryan Briscoe | Honda HR28TT 2.8 L Turbo V6 | M | 80 | +3 Laps‡ |
| 4 | P2 | 552 | Level 5 Motorsports | Guy Cosmo Marino Franchitti Scott Tucker | HPD ARX-03b | M | 80 | +3 Laps |
| 4 | P2 | 552 | Level 5 Motorsports | Guy Cosmo Marino Franchitti Scott Tucker | Honda HR28TT 2.8 L Turbo V6 | M | 80 | +3 Laps |
| 5 | P2 | 02 | Extreme Speed Motorsports | Ed Brown Johannes van Overbeek | HPD ARX-03b | M | 79 | +4 Laps |
| 5 | P2 | 02 | Extreme Speed Motorsports | Ed Brown Johannes van Overbeek | Honda HR28TT 2.8 L Turbo V6 | M | 79 | +4 Laps |
| 6 | P2 | 01 | Extreme Speed Motorsports | Anthony Lazzaro Scott Sharp | HPD ARX-03b | M | 79 | +4 Laps |
| 6 | P2 | 01 | Extreme Speed Motorsports | Anthony Lazzaro Scott Sharp | Honda HR28TT 2.8 L Turbo V6 | M | 79 | +4 Laps |
| 7 | PC | 8 | BAR1 Motorsports | Kyle Marcelli Chris Cumming | Oreca FLM09 | C | 79 | +4 Laps‡ |
| 7 | PC | 8 | BAR1 Motorsports | Kyle Marcelli Chris Cumming | Chevrolet 6.2 L V8 | C | 79 | +4 Laps‡ |
| 8 | PC | 52 | PR1/Mathiasen Motorsports | Dane Cameron Mike Guasch | Oreca FLM09 | C | 79 | +4 Laps |
| 8 | PC | 52 | PR1/Mathiasen Motorsports | Dane Cameron Mike Guasch | Chevrolet 6.2 L V8 | C | 79 | +4 Laps |
| 9 | PC | 05 | CORE Autosport | Jon Bennett Tom Kimber-Smith | Oreca FLM09 | C | 79 | +4 Laps |
| 9 | PC | 05 | CORE Autosport | Jon Bennett Tom Kimber-Smith | Chevrolet 6.2 L V8 | C | 79 | +4 Laps |
| 10 | PC | 18 | Performance Tech Motorsports | Tristan Nunez Charlie Shears | Oreca FLM09 | C | 78 | +5 Laps |
| 10 | PC | 18 | Performance Tech Motorsports | Tristan Nunez Charlie Shears | Chevrolet 6.2 L V8 | C | 78 | +5 Laps |
| 11 | PC | 81 | DragonSpeed | Mirco Schultis Renger van der Zande | Oreca FLM09 | C | 78 | +5 Laps |
| 11 | PC | 81 | DragonSpeed | Mirco Schultis Renger van der Zande | Chevrolet 6.2 L V8 | C | 78 | +5 Laps |
| 12 | PC | 9 | RSR Racing | Bruno Junqueira David Heinemeier Hansson | Oreca FLM09 | C | 78 | +5 Laps |
| 12 | PC | 9 | RSR Racing | Bruno Junqueira David Heinemeier Hansson | Chevrolet 6.2 L V8 | C | 78 | +5 Laps |
| 13 | GT | 3 | Corvette Racing | Jan Magnussen Antonio García | Chevrolet Corvette C6.R | M | 78 | +5 Laps‡ |
| 13 | GT | 3 | Corvette Racing | Jan Magnussen Antonio García | Chevrolet 5.5 L V8 | M | 78 | +5 Laps‡ |
| 14 | GT | 93 | SRT Motorsports | Kuno Wittmer Jonathan Bomarito | SRT Viper GTS-R | M | 78 | +5 Laps |
| 14 | GT | 93 | SRT Motorsports | Kuno Wittmer Jonathan Bomarito | SRT 8.0 L V10 | M | 78 | +5 Laps |
| 15 | GT | 56 | BMW Team RLL | Dirk Müller John Edwards | BMW Z4 GTE | M | 78 | +5 Laps |
| 15 | GT | 56 | BMW Team RLL | Dirk Müller John Edwards | BMW 4.4 L V8 | M | 78 | +5 Laps |
| 16 | GT | 55 | BMW Team RLL | Bill Auberlen Joey Hand | BMW Z4 GTE | M | 77 | +6 Laps |
| 16 | GT | 55 | BMW Team RLL | Bill Auberlen Joey Hand | BMW 4.4 L V8 | M | 77 | +6 Laps |
| 17 | GT | 91 | SRT Motorsports | Marc Goossens Dominik Farnbacher | SRT Viper GTS-R | M | 77 | +6 Laps |
| 17 | GT | 91 | SRT Motorsports | Marc Goossens Dominik Farnbacher | SRT 8.0 L V10 | M | 77 | +6 Laps |
| 18 | GT | 62 | Risi Competizione | Olivier Beretta Matteo Malucelli | Ferrari 458 Italia GT2 | M | 77 | +6 Laps |
| 18 | GT | 62 | Risi Competizione | Olivier Beretta Matteo Malucelli | Ferrari 4.5 L V8 | M | 77 | +6 Laps |
| 19 | GT | 17 | Team Falken Tire | Bryan Sellers Wolf Henzler | Porsche 911 GT3-RSR | F | 76 | +7 Laps |
| 19 | GT | 17 | Team Falken Tire | Bryan Sellers Wolf Henzler | Porsche 4.0 L Flat-6 | F | 76 | +7 Laps |
| 20 | GT | 23 | Team West/AJR/Boardwalk Ferrari | Townsend Bell Bill Sweedler | Ferrari 458 Italia GT2 | Y | 75 | +8 Laps |
| 20 | GT | 23 | Team West/AJR/Boardwalk Ferrari | Townsend Bell Bill Sweedler | Ferrari 4.5 L V8 | Y | 75 | +8 Laps |
| 21 | GTC | 66 | TRG | Ben Keating Damien Faulkner | Porsche 911 GT3 Cup | Y | 72 | +11 Laps‡ |
| 21 | GTC | 66 | TRG | Ben Keating Damien Faulkner | Porsche 4.0 L Flat-6 | Y | 72 | +11 Laps‡ |
| 22 | GTC | 30 | NGT Motorsport | Henrique Cisneros Sean Edwards | Porsche 911 GT3 Cup | Y | 72 | +11 Laps |
| 22 | GTC | 30 | NGT Motorsport | Henrique Cisneros Sean Edwards | Porsche 4.0 L Flat-6 | Y | 72 | +11 Laps |
| 23 | GTC | 27 | Dempsey Racing/Del Piero | Patrick Dempsey Andy Lally | Porsche 911 GT3 Cup | Y | 72 | +11 Laps |
| 23 | GTC | 27 | Dempsey Racing/Del Piero | Patrick Dempsey Andy Lally | Porsche 4.0 L Flat-6 | Y | 72 | +11 Laps |
| 24 | GTC | 11 | JDX Racing | Mike Hedlund Jan Heylen | Porsche 911 GT3 Cup | Y | 72 | +11 Laps |
| 24 | GTC | 11 | JDX Racing | Mike Hedlund Jan Heylen | Porsche 4.0 L Flat-6 | Y | 72 | +11 Laps |
| 25 | GTC | 45 | Flying Lizard Motorsports | Spencer Pumpelly Nelson Canache Jr. | Porsche 911 GT3 Cup | Y | 72 | +11 Laps |
| 25 | GTC | 45 | Flying Lizard Motorsports | Spencer Pumpelly Nelson Canache Jr. | Porsche 4.0 L Flat-6 | Y | 72 | +11 Laps |
| 26 | GTC | 22 | Alex Job Racing | Cooper MacNeil Jeroen Bleekemolen | Porsche 911 GT3 Cup | Y | 71 | +12 Laps |
| 26 | GTC | 22 | Alex Job Racing | Cooper MacNeil Jeroen Bleekemolen | Porsche 4.0 L Flat-6 | Y | 71 | +12 Laps |
| 27 | GTC | 44 | Flying Lizard Motorsports | Seth Neiman Dion von Moltke | Porsche 911 GT3 Cup | Y | 71 | +12 Laps |
| 27 | GTC | 44 | Flying Lizard Motorsports | Seth Neiman Dion von Moltke | Porsche 4.0 L Flat-6 | Y | 71 | +12 Laps |
| 28 DNF | PC | 7 | BAR1 Motorsports | Tomy Drissi Rusty Mitchell | Oreca FLM09 | C | 69 | Suspension |
| 28 DNF | PC | 7 | BAR1 Motorsports | Tomy Drissi Rusty Mitchell | Chevrolet 6.2 L V8 | C | 69 | Suspension |
| 29 DNF | P1 | 0 | DeltaWing Racing Cars | Katherine Legge Andy Meyrick | DeltaWing DWC13 | B | 66 | Gearbox |
| 29 DNF | P1 | 0 | DeltaWing Racing Cars | Katherine Legge Andy Meyrick | Élan (Mazda) 1.9 L Turbo I4 | B | 66 | Gearbox |
| 30 | GT | 48 | Paul Miller Racing | Bryce Miller Marco Holzer | Porsche 911 GT3-RSR | M | 56 | +27 Laps |
| 30 | GT | 48 | Paul Miller Racing | Bryce Miller Marco Holzer | Porsche 4.0 L Flat-6 | M | 56 | +27 Laps |
| 31 DNF | GT | 06 | CORE Autosport | Colin Braun Patrick Long | Porsche 911 GT3-RSR | M | 53 | Transmission |
| 31 DNF | GT | 06 | CORE Autosport | Colin Braun Patrick Long | Porsche 4.0 L Flat-6 | M | 53 | Transmission |
| 32 DNF | PC | 5 | Starworks Motorsport | Ryan Dalziel John Pew | Oreca FLM09 | C | 45 | Overheating |
| 32 DNF | PC | 5 | Starworks Motorsport | Ryan Dalziel John Pew | Chevrolet 6.2 L V8 | C | 45 | Overheating |
| 33 DNF | GT | 4 | Corvette Racing | Oliver Gavin Tommy Milner | Chevrolet Corvette C6.R | M | 26 | Gearbox |
| 33 DNF | GT | 4 | Corvette Racing | Oliver Gavin Tommy Milner | Chevrolet 5.5 L V8 | M | 26 | Gearbox |
| Sources: |||||||||
Tyre manufacturers :
| Key ||
| Symbol | Tyre manufacturer |
| B | Bridgestone |
| C | Continental |
| F | Falken Tire |
| M | Michelin |
| Y | Yokohama |