Podium Finish for Hoffmann in Porsche Sprint Challenge at Sonoma
Shift Up Now Athletes Erika Hoffmann and Loni Unser competed in round two of Porsche Sprint Challenge North America presented by Yokohama at Sonoma Raceway on April 4-6, 2025, with Hoffmann earning a third-place finish in class to put her on the podium for the first time this season.
Competing for Kellymoss Racing, Hoffmann piloted the No. 21 Open Lending Porsche Cayman GT4 RS, with Unser behind the wheel of the No. 4 in the “Be Your Own Hero”livery.
The first practice of the weekend took place on Thursday afternoon under sunny skies with light cloud cover, and similar weather would continue throughout the weekend. Unser ran fourth on the time sheets with Hoffmann in sixth. The following morning, Unser was sixth for the second practice, with Hoffmann in ninth.
Qualifying took place on Friday afternoon on a hot and greasy track, which caused a slower pace for the entire field. After the session was interrupted by a red flag, Unser qualified sixth with Hoffmann in seventh, right behind her Kellymoss teammate. Unser noted her frustration with not being able to put together a better lap, but felt confident in her race car over long stints.
Race one began at 8:20am PST on Saturday on the 2.52-mile, 12-turn road course. Unser started from the outside of row three, with Hoffmann on the inside of row four. After two pace laps, the 35-minute-plus-one-lap sprint race started with the pole sitter making a strong jump at the green.
Unser went around the outside of the fast, uphill turn one, which put her on the inside for the crest in turn two. She cleanly completed a pass as the field headed for turn three. On her heels, Hoffmann attempted to follow her through and make a pass for sixth in turn three. When she elected to back out of the attempt, she slotted back into seventh.
The cars in third through sixth raced tightly together, and Unser had her sights set on the pass for third in class. As the field spread out, she increased the pressure to fight for a podium spot.
Unfortunately, the driver ahead made a mistake in the chicane, causing the car to go sideways. Because Unser was underneath the rear wing at the moment, the two cars connected wheels and both drivers lost control. The contact sent Unser’s Cayman GT4 RS off track. She missed the tire barrier and made hard contact with the concrete, causing heavy damage that would not only take her out of race one, but likely put race two in jeopardy as well.
Only ten minutes remained after the full-course yellow and the field lined up for a single-file restart. Hoffmann was running fifth overall and third in class. When a car ahead spun after the
restart, she gained a position. Hoffmann would take the checkered flag third in class for her first podium finish of the season in just her second Porsche Sprint Challenge race weekend.
“It feels amazing to stand on the podium in just my second Porsche Sprint Challenge weekend,” said Hoffmann. “I want to give a huge thank you to the entire Kellymoss team for giving me a great car and helping me improve every session. I’m proud of the progress we’ve made and excited to keep building from here.”
Later that day, race two began at 2:00pm PST, and the afternoon heat meant slick track conditions once again. Hoffmann was lined up in seventh.
Unser was meant to start from sixth, but the team elected to line up at the back of the field. Although all hands were on deck from the Kellymoss Racing team to repair the car enough to at least start the race for valuable championship points, Unser had to ensure that she wouldn’t interfere with someone else’s race if she had to pit immediately after the restart.
After two pace laps, the field made a clean start and Hoffmann advanced one spot to sixth overall.
Just as Unser expected, and despite her team’s best efforts, she would have to “start and park” the car, pulling into pit lane after just one lap and retiring for the day.
Hoffmann spent the remainder of the 35-minute-plus-one-lap sprint race running within one second of the fifth-place car. But at such a difficult race track to pass on, she would have to settle for sixth-place overall - and fourth in class - when the checkered flag fell.
Next up, Hoffmann and Unser will head to Texas for round three of the Porsche Sprint Challenge North America presented by Yokohama championship at Circuit of the Americas on May 16-18, 2025.