JDC‑Miller wins Laguna Seca, Heinrich leads

Sports car racing usually rewards the biggest factory programs. More people, more data, more margin for error. That is why Laguna Seca mattered so much this weekend — JDC-Miller MotorSports, a customer Porsche team, beat the full works outfits in IMSA’s top class and did it with a last-lap pass. Laurin Heinrich and Tijmen van der Helm put the No. 5 Porsche 963 in Victory Lane on May 3, and the result changed the shape of the title fight immediately. (imsa.com) ### What actually happened? JDC-Miller won the StubHub Monterey SportsCar Championship at WeatherTech Raceway Laguna Seca, with Heinrich taking the lead from Earl Bamber’s No. 31 Cadillac on the final lap. The margin at the flag was just 0.758 seconds after 119 laps, with the BMW M Team WRT No. 25 finishing third. (imsa.com) ### Why is that such a big deal? Because this was not Porsche Penske, Cadillac Whelen, or another full factory operation. JDC-Miller is a privateer team running a customer Porsche 963, and Laguna Seca made it the first privateer winner in IMSA’s GTP era since the current rules package arrived in 2023. In a class built around manufacturer muscle, that is the sort of result people remember. (newsroom.porsche.com) ### How did they pull it off? The race was basically a clean execution story. Tijmen van der Helm handled the opening stint without mistakes, the team stayed on strategy, and Heinrich took over around 40 minutes in while running 10th. From there (newsroom.porsche.com)urn 5. (imsa.com) ### Why does Heinrich matter so much here? Heinrich was the closer, but he was also the bridge between Porsche’s factory effort and its customer program. He is a Porsche factory driver, only 24, and this was already part of a huge 2026 run(imsa.com) a completely different kind of car and program. (imsa.com) ### What happened to the factory Porsches? They never turned this into a Porsche 1-2-3 kind of day. Porsche Penske tried a bold strategy and briefly looked relevant at the front, but late pit timing dropped the factory cars back. The No. 6 of Kévin Estre and Laurens Vanthoor finished sixth, and the No. 7 of Felipe Nasr and Julien Andlauer came home seventh. (newsroom.porsche.com) ### How did this hit the standings? This is where the win gets bigger than one dramatic finish. Heinrich moved into the GTP drivers’ championship lead after Laguna Seca. IMSA’s standings page showed Julien Andlauer and Felipe Nasr still level at (newsroom.porsche.com) sprint-title picture after his Laguna result. The simple version — he turned one guest drive for JDC-Miller into a real championship swing. (imsa.com) ### Was Porsche strong outside GTP too? Yes — and that is part of why the weekend landed so well for them. Porsche said AO Racing’s 911 GT3 R also made the GTD Pro podium, so the brand was not just surviving on one upset in the prototype class. It had a multi-class weekend with a headline win at the top. (newsroom.porsche.com) ### Bottom line Laguna Seca gave IMSA something rare — a true giant-killing result that was not fluky or fuel-lottery weird. JDC-Miller started last in GTP, executed perfectly, and let Heinrich finish the job. That made it a breakthrough for customer teams, a statement for Porsche’s 963 program, and a real title moment for Heinrich. (imsa.com)