Photo credit: Porsche

If you tune into the IMSA WeatherTech Sports Car Championship race this weekend, you’ll notice only one Porsche 911 GT3 R in the GT Daytona class instead of the expected three. The Porsche GTD teams are fuming mad, including one owned by the founder of the series’ biggest sponsor.

It all started with the No. 22 WeatherTech car, owned by WeatherTech company founder David MacNeil and run by Alex Job Racing. However, as Alex Job told Racer, the No. 22 squad didn’t feel as if IMSA allowed their team to be competitive, so that car is quitting the season accordingly:

The decision to stop racing ... was based upon the performance in direct comparison to the competition over the past eight GTD races and the possible variations of how the BoP (balance of performance) could play out over the next three races with our engineering team and IMSA.

The team’s announcement came after the release of IMSA’s balance of performance tables for this weekend’s race at Virginia International Raceway. Those tables specify which modifications (such as restrictor size) must be done to put different models of race cars on a somewhat level playing field.

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Although MacNeil told Racer that his company remains committed to being the series’ title sponsor, one has to raise an eyebrow at the fact that his team doesn’t have much faith in the series’ ability to put on a fair competition.

Photo credit: Porsche

After the No. 22 dropped out, the No. 73 Park Place Porsche also withdrew in solidarity. Team owner and driver Patrick Lindsey explained to Racer:

We feel we are not competing on a level playing field with our peers. Therefore, we are opting out of spending money for the VIR event; money that would not have shown a proper return for our sponsors.

While sponsorship obligations have locked the No. 73 into competing at Circuit of the Americas and Petit Le Mans, Lindsey reiterated to Racer that they’re pulling out where they can “in the hope it will result in changes for the good of the sport.”

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It’s clear that they’ve been unhappy with their results this season, and were even less happy with their chances to catch up based on the balance of performance tweaks released for VIR. No. 73 finished second at its last outing at Road America, and No. 22 finished fifth. However, they sit tenth and eighth in the series’ standings accordingly.

The lone No. 23 Porsche left in GTD, however, won’t be joining them. In fifth place—a mere 36 points behind current leader Scuderia Corsa—they have a shot at the season championship.

However, as Marshall Pruett explained on the Midweek Motorsport podcast, the fact that one Porsche is doing fine doesn’t necessarily negate the other two teams’ protest. In pro-am classes like GTD, the amateur drivers’ ability to compete must be balanced in addition to the car.

When the Porsches are being held back by balance of performance more than the other teams, they have to set their cars up more aggressively to regain lost speed, and the cars become very hard to drive for the amateurs. The pro drivers still set fast laps, but the amateurs can’t keep up and aren’t having any fun anymore. That’s a big problem when amateurs bring much of the funding to pro-am teams, too.

IMSA’s response thus far has been to stand by their balance of performance measures and processes. Is it really fair in a class meant for amateurs when the amateurs feel like they can’t compete, though?