JDC-Miller MotorSports finishes in the 11th position at Detroit
SAVAGE, Minn. (June 2, 2025) — JDC-Miller MotorSports persevered with their Porsche 963 after receiving a pit speed penalty, ultimately finishing in 11th place at the 5th round of the IMSA WeatherTech Championship on the streets of Detroit.
The privateer team felt confident heading into Saturday’s race after making progress on Friday with the car setup for the always-challenging Detroit street circuit. Some of this progress, however, was diminished on race day when the weather dropped significantly from the upper-70s to a blustery 61ºF. The cooler ambient temperatures made it more difficult to reach optimal tire temperatures during the race, which impacted the Porsche’s overall pace.
Gimmi Bruni had a strong opening lap in the No. 85 Porsche, passing two cars and advancing from his 10th starting position to 8th. The race was proceeding smoothly and according to plan when, on lap 21, Bruni pitted for the mandatory driver change to Tijman Van der Helm. Unfortunately, the No. 85 Porsche exceeded the pit speed limit while exiting the pits. A drive-through penalty was imposed, causing the car to go a lap down. Van der Helm uneventfully brought the car home in 11th position.
Quotes:
John Church, Managing Partner, No. 85 JDC-Miller MotorSports Porsche 963
“Except for the pit speed penalty, it was a relatively uneventful weekend. The team did a great job prepping the car for this race and provided the drivers with a car that performed as well as could be expected over the bumps and tight turns of this street circuit. While we didn’t achieve the pace we desired, we had a car we thought we could gain some positions with in the race. In a race as short as this one, once you go down a lap, there wasn’t much left to salvage. It’s tough.
The crew and drivers did an excellent job throughout the weekend. We are excited about Watkins Glen and the rest of the season. We have experienced success at The Glen in the past and are putting in the effort for a strong performance.”
Gianmaria Bruni, Driver, No. 85 JDC-Miller MotorSports Porsche 963

“We knew this race was going to be tough for us for a variety of reasons. I had a really great start, jumping up from P10 to P8. We were in a pretty good position to push for the rest of the race from there, but the pit overspeed violation ended that.”
Tijmen van der Helm, Driver, No. 85 JDC-Miller MotorSports Porsche 963

“Over the weekend, we couldn’t quite match the pace of Porsche Penske Motorsport’s factory Porsche 963 cars. But in the race, the gap was a bit smaller. Sadly, a penalty for exceeding the speed limit in the pit lane cost us dearly – you simply can’t make up those 25 lost seconds. And even if you did, overtaking is difficult on this track.”
JDC-Miller MotorSports finishes in the 9th position at the 2025 Monterey Sportscar Championship
SAVAGE, Minn. (May 11, 2025) — JDC-Miller MotorSports brought their Porsche 963 home in an unsatisfying 9th position at the checker of the Monterey Sportscar Championship at WeatherTech Raceway Laguna Seca. Gianmaria Bruno had qualified the car in the 10th position.
Under beautiful, but cool California skies, 36 cars took the green flag for the two-hour and 40-minute race around the 2.238 mile circuit. The LMP2 class was not part of this event.
Bruni had a good start and maintained his position. The team planned to deploy an aggressive pit strategy to gain positions using an “undercut”, which was pitting early on lap 21 to get on new tires and in clean air. This strategy played out quite well, as competitors pitted and Bruni worked the No. 85 Porsche up to as high as 4th. To make this strategy work, however, you then need a full-course caution. Unfortunately, this race was unusually green from flag to flag, and a late stop for fuel left the No. 85 in 9th.
Looking ahead, the team is already focused on their next challenge at the Detroit Grand Prix, scheduled for May 31st. With the unique demands of the Detroit street circuit, JDC-Miller MotorSports is determined to find the speed and precision required to return to the front of the pack.
Quotes:
John Church, Managing Partner, No. 85 JDC-Miller MotorSports Porsche 963
“We didn’t have quite the pace we would have liked all weekend. That resulted in a disappointing 10th qualifying position, so we knew we needed to come up with a strategy for the race that would move us up the order. We got aggressive and pitted on lap 21, which worked out very well. The downside was, however, that this strategy required a full-course caution, which we never got. That meant we had to stop for fuel late in the race, and we were back where we started. I can’t recall a race here that went the whole way without a full-course caution, but this year’s race did.
The crew and the drivers did a great job all weekend. IMSA racing is so competitive that if you are off by a couple of tenths here and there, you are going to finish 9th or 10th. I’m confident that when we study the data, we will learn where those tenths are, and make the adjustments we need to be up front at Detroit.”
Gianmaria Bruni, Driver, No. 85 JDC-Miller MotorSports Porsche 963

“This was an interesting race. We tried to get the best out of it from the strategy, unfortunately, we needed a yellow that didn’t come. We gambled on a strategy, which sometimes works and sometimes not, and that is racing.
I think we did the right things for the position we were in. There wasn’t much else we could do to improve track position. It was good. We tried our best this weekend and now we move forward.”
Tijmen van der Helm, Driver, No. 85 JDC-Miller MotorSports Porsche 963

“We were struggling a bit with pace this weekend, and we just wanted to take a gamble on the strategy to maybe have a better result. It didn’t work out so well because we never got the safety car we were expecting. When you look at this race, normally there are several safety cars. So luck just wasn’t on our side. We will put our heads together to find some more speed in the car for Detroit and beyond.”
JDC-Miller MotorSports finishes in the 10th position at the 2025 Grand Prix of Long Beach
SAVAGE, Minn. (April 12, 2025) — JDC-Miller MotorSports brought their Porsche 963
home in a disappointing 10th position at the conclusion of the 2025 Grand Prix of Long
Beach. The 100-minute race around the 1.968 street circuit represented a sharp
contrast to the first two rounds of the IMSA WeatherTech SportsCar Championship.
IMSA competitors went from the two longest races on the schedule to one of the
shortest. This year’s race represented the 50th running of this popular and iconic race
around the Long Beach harbor.
Starting in the 9th position, the race started strong for the JDC-Miller MotorSports no. 85
Porsche 963 as Tijmen van der Helm picked up a spot on the start and had excellent
pace. His day was short, however, as a caution came out twenty minutes into the race.
The team pitted to take advantage of the yellow for the mandatory driver change to
Gianmaria Bruni. The JDC-Miller crew had an outstanding stop, and when the race
resumed, the 85 was running in a very strong 5th. Gimmi was running with the leaders
when on lap 40, a GTD car he was lapping, hit the left rear of the Porsche and spun him
into the tire wall. This forced a pit stop to repair a broken rear wing. The JDC-Miller
team made the repair in less than a minute, keeping the car on the lead lap, but the 85
dropped to 10th, where it would remain until the race’s conclusion 20 laps later.
The car will stay on the West Coast for the next race at WeatherTech Raceway Laguna
Seca May 11th. It was just 2 years ago that JDC-Miller MotorSports debuted their new
Porsche 963 in the IMSA WeatherTech SportsCar Championship GTP class.
Quotes:
John Church, Managing Partner, No. 85 JDC-Miller MotorSports Porsche 963
“We were not happy with our qualifying set-up and the crew did a great job overnight to
give us a really good car for the race. Tijmen showed that right away with an over-take
on the first lap, and we were feeling confident of a good result. When the first caution
came out, everyone did an awesome job in the pits, and we vaulted up to 5th.
Unfortunately, as so often happens on a street course, Gimmi had an incident and we
had to pit to repair the rear wing. With only a little over a half hour left in the race, there
just isn’t much you can do.
A disappointing finish, but there were some real bright moments. We had a competitive
car and executed very well. If we keep doing that, we will be in a great position when
Lady Luck does smile on us.”
Gianmaria Bruni, Driver, No. 85 JDC-Miller MotorSports Porsche 963
“A tough finish which doesn’t reflect how competitive the car was. The car was very
good, and we were running strong until, in turn 6, I got hit in the left rear corner by a
GTD car I had just lapped. It spun me around into the tire wall, damaging the wing and
diffuser. It’s a shame because we were doing very well. We’ll move forward.”
Tijmen van der Helm, Driver, No. 85 JDC-Miller MotorSports Porsche 963
“This is a very short race for our series. We had to come from the back as we struggled
with the setup in qualifying. The car was much better in the race, and we picked up
some spots early in the race. Sadly, we got hit by a GTD car and had to make an extra
pit stop. Just not the luck on our side. We will keep improving and get some results at
Laguna Seca.”

