IMSA releases its 2017 calendars

Photo courtesy of IMSA
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ELKHART LAKE, Wis. – At its quickly becoming annual state of the series event at Road America, IMSA has revealed the 2017 calendars for its IMSA WeatherTech SportsCar Championship, Continental Tire SportsCar Challenge, Porsche GT3 Cup Challenge USA by Yokohama, and newly rebranded IMSA Prototype Challenge presented by Mazda.

Starting with the WeatherTech Championship first, the big changes are twofold – the Circuit of The Americas and Mazda Raceway Laguna Seca dates change.

Circuit of The Americas is now a May standalone date, separate from the FIA World Endurance Championship, which brings to an end the Lone Star Le Mans weekend at the end of this year.

Meanwhile the Mazda Raceway Laguna Seca date moves to September.

Here’s your reasoning on both of these adjustments, per IMSA President Scott Atherton:

“We’ll take COTA first. We have been there from the start after the American Le Mans Series went by itself. Since we’ve merged we’ve been there with the World Endurance Championship,” Atherton said. “It’s been a spectacular weekend, but it’s come with a lot of compromise by all involved.

“It also has had issues with its proximity on the calendar to college football which is enormous in that part of the world and also in proximity to the Formula 1 race that takes place. So it definitely has a distraction from their staff, their marketing efforts. Let’s be honest: a Formula 1 weekend is their biggest so that’s where their focus is.

“So we had a desire to go to a springtime date. Grand-Am raced there in the spring, had a very successful weekend and that’s been our desire. We made that known to COTA as well as to our partners at WEC. We were able to confirm a date. I don’t have knowledge of what the WEC plans are and candidly it’s not for us to speculate. Right now, we’re pleased with that decision, looking forward to an IMSA weekend at COTA in the spring.

“The second example, simply the opportunity to open up that weekend by virtue moving our weekend at Mazda Raceway Laguna Seca. Again, fall on the Monterey peninsula is a spectacular time of year. It’s a traditional time of year for road racing, big events. They’re big historic car weekend in August followed by what will now be the WeatherTech Championship, got an entire weekend there in September. So same venues, slight modifications on the weekends and some other alterations on the class structure at each event. But all in all, couldn’t be more pleased with the calendar.”

Here’s the WeatherTech Championship schedule:

2017 IMSA WeatherTech SportsCar Championship Schedule
Date Event (Duration) / Venue Classes / Duration
Jan. 26-29 Rolex 24 At Daytona P/PC/GTLM/GTD
Daytona International Speedway – Daytona Beach, Florida 24 Hours
March 15-18 Mobil 1 Twelve Hours of Sebring Fueled by Fresh From Florida P/PC/GTLM/GTD
Sebring International Raceway – Sebring, Florida 12 Hours
April 7-8 BUBBA burger SportsCar Grand Prix at Long Beach P/GTLM/GTD
Long Beach, California 100 Minutes
May 5-7 Circuit of The Americas P/PC/GTLM/GTD
Austin, Texas 2 Hours, 40 Minutes
June 2-3 Chevrolet Belle Isle Detroit Grand Prix P/PC/GTD
Belle Isle Park – Detroit, Michigan 100 Minutes
June 30-July 2 Sahlen’s Six Hours of The Glen P/PC/GTLM/GTD
Watkins Glen International – Watkins Glen, New York 6 Hours
July 7-9 Mobil 1 SportsCar Grand Prix P/PC/GTLM/GTD
Canadian Tire Motorsport Park – Bowmanville, Ontario, Canada 2 Hours, 40 Minutes
July 21-22 IMSA WeatherTech Northeast Grand Prix GTLM/GTD
Lime Rock Park – Lakeville, Connecticut 2 Hours, 40 Minutes
Aug. 4-6 Continental Tire Road Race Showcase P/PC/GTLM/GTD
Road America – Elkhart Lake, Wisconsin 2 Hours, 40 Minutes
Aug. 25-27 Michelin GT Challenge GTLM/GTD
VIRginia International Raceway – Danville, Virginia 2 Hours, 40 Minutes
Sept. 22-24 Continental Tire Monterey Grand Prix powered by Mazda P/GTLM/GTD
Mazda Raceway Laguna Seca – Monterey, California 2 Hours, 40 Minutes
Oct. 5-7 Petit Le Mans P/PC/GTLM/GTD
Road Atlanta – Braselton, Georgia 10 Hours
IMSA WeatherTech Championship Sanctioned Test Sessions
Date Venue Classes
Nov. 15-16, 2016 Daytona International Speedway P/PC/GTLM/GTD
Daytona Beach, Florida
Dec. 13-14, 2016 Daytona International Speedway P/GTLM/GTD
Daytona Beach, Florida
Jan. 6-8, 2017 Roar Before The Rolex 24 At Daytona P/PC/GTLM/GTD
Daytona Beach, Florida
Feb. 23-24, 2017 Sebring International Raceway P/PC/GTLM/GTD
Sebring, Florida

Shifting to the Continental Tire SportsCar Challenge next, changes come with a reduction in standard races to a two-hour format, from two hours and 30 minutes. Meanwhile two four-hour races are added at Daytona and Mazda Raceway Laguna Seca, to differentiate.

Class structure stays the same with GT4 becoming the GS platform in 2018. Discussions are possible for TCR to enter into this series by 2018.

Here’s the Continental Tire schedule:

2017 IMSA Continental Tire SportsCar Challenge Schedule
Date Venue / Location Duration
Jan. 27 Daytona International Speedway – Daytona Beach, Florida 4 Hours
March 17 Sebring International Raceway – Sebring, Florida 2 Hours
May 6 Circuit of The Americas – Austin, Texas 2 Hours
July 1 Watkins Glen International – Watkins Glen, New York 2 Hours
July 8 Canadian Tire Motorsport Park – Bowmanville, Ontario, Canada 2 Hours
July 22 Lime Rock Park – Lakeville, Connecticut 2 Hours
Aug. 4-6 Road America – Elkhart Lake, Wisconsin 2 Hours
Aug. 26 VIRginia International Raceway – Danville, Virginia 2 Hours
Sept. 23 Mazda Raceway Laguna Seca – Monterey, California 4 Hours*
Oct. 6 Road Atlanta – Braselton, Georgia 2 Hours
* – Subject to final confirmation

The Prototype Challenge presented by Mazda series is the rebranded Mazda Prototype Lites presented by Cooper Tires, which in 2015 was the Cooper Tires Prototype Lites presented by Mazda.

It adds LMP3 race cars, and the new championship will race a 13-round schedule at seven premier North American circuits.

Prototype Challenge action will be divided into two classes, blending new and existing IMSA machinery. The PC1 class will feature LM P3 chassis from as many as six different constructors powered by identical V8 engines.

The PC2 class will use the existing Élan DP02 chassis powered by Mazda engines currently used in the Lites 1 class of the Mazda Prototype Lites Presented by Cooper Tires, the foundation for the new IMSA Prototype Challenge series.

Here’s that schedule:

2017 IMSA Prototype Challenge presented by Mazda Schedule
Date Venue
March 17-18 Sebring International Raceway, Sebring, Florida*
April 21-23 Barber Motorsports Park, Birmingham, Alabama
June 30-July 2 Watkins Glen International, Watkins Glen, New York*
July 7-9 Canadian Tire Motorsport Park, Bowmanville, Ontario*
July 21-22 Lime Rock Park, Lakeville, Connecticut* **
Aug. 11-13 Grand Prix of Trois-Rivières, Trois-Rivières, Quebec
Oct. 5-7 Road Atlanta, Braselton, Georgia*

* — In conjunction with IMSA WeatherTech SportsCar Championship events
** — Will feature a single, 45-minute race

The only note of note from the Porsche GT3 Cup Challenge USA by Yokohama was the inclusion of a couple Verizon IndyCar Series dates. See that schedule below:

2017 Porsche GT3 Cup Challenge USA by Yokohama Schedule
Date Venue
March 17-18 Sebring International Raceway, Sebring, Florida*
April 21-23 Barber Motorsports Park, Birmingham, Alabama
May/June To Be Confirmed
June 30-July 2 Watkins Glen International, Watkins Glen, New York*
Aug. 4-6 Road America, Elkhart Lake, Wisconsin*
Aug. 25-27 VIRginia International Raceway, Danville, Virginia*
Sept. 15-17 Sonoma Raceway, Sonoma, California
Oct. 5-7 Road Atlanta, Braselton, Georgia*

* — In conjunction with IMSA WeatherTech SportsCar Championship events

IMSA Petit Le Mans at Road Atlanta: How to watch, start times, schedule, entry list

AUTO: NOV 13 IMSA - Motul Petit Le Mans
David J. Griffin/Icon Sportswire via Getty Images
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Start times, TV schedule: The IMSA WeatherTech SportsCar Championship will conclude the 2022 season this weekend with the Motul Petit Le Mans at Michelin Road Atlanta, which also will mark the end of the line for the DPi class.

The premier Daytona Prototype international category, which started in 2017, will be replaced by the new Grand Touring Prototype (GTP) class with its LMDh cars that will establish a bridge to Le Mans.

For the third time in four years, an Acura will be crowned the champion in DPi as the No. 10 of Wayne Taylor Racing holds a 19-point edge over the No. 60 of Meyer Shank Racing.

Last year, WTR’s No. 10 entered the season finale with a 19-point lead but lost the title to the No. 31 Cadillac of Action Express.

Full-time WTR drivers Filipe Albuquerque and Ricky Taylor (who will be joined by Brendon Hartley in the No. 10 this weekend) have a series-leading four victories this season. The MSR duo of Tom Blomqvist and Oliver Jarvis (who will be joined by Helio Castroneves this weekend) won the Rolex 24 at Daytona and have five runner-up finishes this year.

Championship scenarios in the other four categories:

GTD Pro: Points leaders Matt Campbell and Mathieu Jaminet will clinch the title by starting in their No. 9 Pfaff Motorsports Porsche 911 GT3 R.

–GTD: There are 140 points separating the top four teams with Roman De Angelis and the No. 27 Heart of Racing Aston Martin Vantage GT3 leading by 45 points.

–LMP2: John Farano is first in the driver standings by 33 points over Dwight Merriman and Ryan Dalziel. In the team standings, the No. 52 PR1 Mathiasen Motorsports leads by 19 points over the No. 8 Tower Motorsport (Farano’s team).

–LMP3: No. 54 CORE autosport drivers Jon Bennett and Colin Braun lead by 83 points over the No. 74 Riley Motorsports of Gar Robinson.

With the 10-hour race requiring an extra driver, several stars from other racing series have been added. In addition to Castroneves, Scott Dixon and Ryan Hunter-Reay will serve as third drivers in Chip Ganassi Racing’s pair of Cadillacs.

Jimmie Johnson also will be making his last DPi start in the No. 48 Ally Cadillac with Mike Rockenfeller and Kamui Kobayashi. Petit Le Mans could mark the last start in an IMSA prototype for Johnson, who has said limited inventory likely will keep him out of the GTP category in the Rolex 24 next year.

Here are the start times, starting lineup, schedule and TV info for the IMSA Petit Le Mans at Road Atlanta (all times are ET):


Petit Le Mans at Road Atlanta start times, schedule, TV info

When: Saturday, 12:10 p.m. ET

Race distance: Ten hours on the 12-turn, 2.54-mile road course

TV: Noon-3 p.m., NBC; 3-10:30 p.m., USA Network. Peacock, the NBC Sports App,and NBCSports.com will have streaming coverage of the event from flag to flag beginning at noon. Leigh Diffey and Dave Burns are the play by play announcers with analysts Calvin Fish, Townsend Bell, James Hinchcliffe and Brian Till. The pit reporters are Kevin Lee, Hannah Newhouse, Dillon Welch and Matt Yocum.

IMSA.com live TV qualifying stream: Friday, 3:35 p.m. ET.

IMSA Radio: All sessions are live on IMSA.com and RadioLeMans.com; SiriusXM live race coverage will begin Saturday at noon (XM 207, Internet/App 992).

Forecast: According to Wunderground.com, it’s expected to be 63 degrees with an 85% chance of rain at the green flag.

Entry list: Click here to see the 48-car field for the IMSA Petit Le Mans at Road Atlanta


Daily schedule IMSA Petit Le Mans

Here’s a rundown of the Petit Le Mans at Michelin Road Atlanta in Braselton, Georgia:

Wednesday, Sept. 28

9:30 a.m.: Mazda MX-5 practice

10:25 a.m.: Porsche Carrera Cup

12:30 p.m.: Prototype Challenge practice

1:15 p.m.: Mazda MX-5 practcice

2 p.m.: Porsche Carrera Cup practice

3:30 p.m.: Michelin Challenge practice

Thursday, Sept. 29

8 a.m.: Prototype Challenge practice

9 a.m.: Porsche Carrera Cup qualifying

9:50 a.m.: IMSA WeatherTech SportsCar Championship practice

11:40 a.m.: Prototype Challenge qualifying

12:10 p.m.: Michelin Challenge practice

1:50 p.m.: Mazda MX-5, Race 1

2:55 p.m.: IMSA WeatherTech SportsCar Championship practice

5 p.m.: Porsche Carrera Cup, Race 1

6 p.m.: Michelin Challenge qualifying

7:30 p.m.: IMSA WeatherTech SportsCar Championship practice

Friday, Sept. 30

8 a.m.: Prototype Challenge race

9:50 a.m.: Mazda MX-5, Race 2

10:55 a.m.: Porsche Carrera Cup, Race 2

1:10 p.m.: IMSA Michelin Pilot Challenge race

3:40 p.m.: IMSA WeatherTech SportsCar Championship qualifying

Saturday, Oct. 1

9:15 a.m.: IMSA WeatherTech SportsCar Championship practice

12:10 p.m.: Petit Le Mans