Little changed in the IMSA WeatherTech SportsCar Championship full season points standings after Road America.

Both prototype class leaders extended their leads. And in the GT classes, the leading pairings exercised damage limitation to remain on top.

The WeatherTech Sprint Cup lead changed hands, though.

The IMSA MICHELIN Pilot Challenge points leaders remain the same.

DPi/LMP2

Team Penske and PR1/Mathiasen Motorsports kept their respective streaks alive.

Juan Pablo Montoya and Dane Cameron secured their sixth straight podium in the No. 6 Acura ARX-05. That run dates back to Long Beach in April.

Felipe Nasr and Pipo Derani sit second in the No. 31 Whelen Engineering Racing Cadillac DPi-V.R, seven points back. The talented, title-contending pairing have only been able to achieve one podium in the last six races. Derani expressed frustration post-Road America (via Sportscar365).

With his second (and Mazda’s third straight) win, Jonathan Bomarito is now tied for third in points with the second Acura of Helio Castroneves and Ricky Taylor. Bomarito and co-driver Harry Tincknell are split on points. Tincknell missed Mid-Ohio due to his FIA World Endurance Championship commitments.

PR1/Mathiasen banked its fourth straight LMP2 win with its fourth different driver lineup. Matt McMurry is solo leader by five points over Cameron Cassels of Performance Tech Motorsports. McMurry has won with Eric Lux (Mid-Ohio and Watkins Glen), Gabriel Aubry (Watkins Glen), Dalton Kellett (CTMP) and Patrick Kelly (Road America).

GTLM/GTD

Third place for Earl Bamber and Laurens Vanthoor in GT Le Mans and fifth for Trent Hindman and Mario Farnbacher in GT Daytona ensured they stayed at the heads of the field in those classes.

Bamber and Vanthoor are 14 points clear of Porsche teammates Nick Tandy and Patrick Pilet. Courtesy of their second straight win, Ford’s Richard Westbrook and Ryan Briscoe are now only 18 points back with three races to go. Two-time defending champions Antonio Garcia and Jan Magnussen sit 19 points behind.

Meyer Shank Racing Acura’s Hindman and Farnbacher’s lead slipped from 30 points to a still healthy 26 leaving Road America. Turner Motorsport’s Bill Auberlen and Robby Foley have planted themselves second, with four podiums in a row.

WEATHERTECH SPRINT CUP

The GTD-only WeatherTech Sprint Cup has a new points leader with two races remaining in that championship. Zacharie Robichon ascended to the top spot at Road America with his second straight win.

In the sprint race championship, Robichon has raced alongside four different co-drivers. Driving either the PFAFF or Park Place Porsche, Robichon has four top-five finishes in five sprint races.

Hindman and Farnbacher, and Richard Heistand and Jack Hawksworth in the AIM Vasser Sullivan Lexus, both sit five points behind.

MICHELIN PILOT CHALLENGE

Both GS and TCR points leaders finished fourth in Saturday’s rain-shortened IMSA MICHELIN Pilot Challenge race.

Jeff Westphal and Tyler McQuarrie share the No. 39 CarBahn Motorsports with Peregrine Racing Audi R8 LMS GT4. They had a roller-coaster race at Road America. McQuarrie qualified on pole, started on slicks, handed off to Westphal who made up ground on slicks, then was early enough back to the pits for rain tires to the finish.

They gained on both the Bimmerworld BMW of Devin Jones and James Clay and the MIA McLaren of Jesse Lazare and Corey Fergus. MIA was unlucky to fall from the lead to seventh on the last lap. The Bimmerworld BMW finished ninth.

TCR closed slightly with Shelby Blackstock and Tom O’Gorman, in their L.A. Honda World Honda, gaining four points on the leaders. Mark Wilkins and Michael Lewis still lead in their Bryan Herta Autosport Hyundai.