Shift Up Now Athletes Hannah Greenemeier and Hannah Grisham earned back-to-back seventh-place finishes overall during the season finale of Pirelli GT4 America at the Indianapolis Motor Speedway (IMS) on October 16-19, 2025.
Driving the No. 26 navy blue and yellow Aston Martin GT4 for the Heart of Racing Team, Greenemeier and Grisham took to the track Thursday for two practice sessions. They ran in the top 15 for the first, then bested their performance by moving into the top ten for the second.
Friday’s qualifying took place at 2:45pm ET under sunny skies, with temperatures in the mid- seventies. Both of the Hannahs set personal-best times on the 2.439-mile, 14-turn road course. Greenemeier was behind the wheel first, qualifying ninth overall for the start of race one. Then Grisham, who previously won her first race in class at IMS for Heart of Racing, took over and qualified seventh overall for the second race.
Saturday morning dawned cool and sunny for the start of the first one-hour competition. Greenemeier lined up on the inside of row five, and rolled side-by-side with the field to the green flag, which flew at 9:50am ET.
Heading into turn one, Greenemeier got squeezed but kept the car clean when a large, multi- car incident in the first turn brought out the full-course caution. Cleanup was lengthy, leaving 36 minutes on the clock at the restart.
Greenemeier was in 11th when the green flag flew again and had a clean restart, immediately completing the pass to move into the top ten. She then went straight to pit lane for the mandatory pit stop and driver change.
Grisham took over and cycled up to ninth overall after the field’s pit stops were completed. She spent the rest of the competition setting fast times and making additional passes to bring the Heart of Racing Aston GT4 home in seventh-place in the Pro Class - and overall - at the checkered flag.
On Sunday morning, the weather painted a completely different picture. A torrential rain swept through the area before the race, leaving a wet race track in its wake. When race two began at 9:45am ET, overcast skies and windy condition remained for the one-hour competition.
All cars went out on wet tires, and after one pace lap, race control elected to start the field behind the safety car due to standing water on track and poor visibility. Grisham was behind the wheel for the single-file start, running in seventh.
She held position through the first few corners as substantial “rooster tails” from the leaders severely limited visibility for the rest of the field. Grisham did her best with the tricky conditions
for the first half of the race, then advanced a few spots when the team elected to leave her on track past the opening of the pit window. As a result, she pulled into pit lane in fifth for the mandatory pit stop and driver change.
Greenemeier took the wheel as the racing line began to dry for the second half of the race. Once the cars all cycled through after the pit stop, Greenemeier was running seventh overall, and fifth in class. By the time the checkered flag flew, she crossed the finish line in seventh overall, and fourth in class, just one place off the podium to close out the season.
"It was a good weekend in Indianapolis, we had some of our strongest pace of the season," said Grisham. "Sunday made for an interesting race in mixed conditions and saw us finish one step short of the podium. Overall, our first year competing in the silver class has been a challenge, but a great learning experience. Huge thank you to The Heart of Racing and everyone who makes it possible for us to race."
The 2026 Pirelli GT4 America schedule kicks off in just 156 short days, when the series heads to Sonoma Raceway for rounds one and two on March 27-29, 2026.
