At 51 years old, most athletes are trading helmets for rocking chairs. But Helio Castroneves? He's still chasing history at 226 mph.

The four-time Indianapolis 500 champion turned heads Thursday at the Brickyard, posting the second-fastest practice speed of the day at 226.977 mph. It's another early statement from a driver who refuses to let age slow him down.

"I want to go to the Guinness book," Castroneves said, his eyes fixed on a record-breaking fifth Indy 500 victory. He's already tied with legends A.J. Foyt, Al Unser Sr. and Rick Mears for the most wins in race history, having captured the Borg-Warner Trophy in 2001, 2002, 2009 and 2021. A fifth win would not only break that tie but also make him the oldest winner in race history, surpassing Unser's 1987 record.

The first three days of practice have been clean and methodical at Indianapolis Motor Speedway, with few interruptions. But even in a smooth week, Castroneves found a way to stand out. His speed Thursday was a reminder that experience and hunger can still overpower youth.

Don't let the results sheet fool you, though. Castroneves admits he's still learning. The modern qualifying format presents new challenges, even for a veteran with four rings. "Every year, things change," he explained. "You have to adapt. You have to keep learning."

For fans who remember his first win in 2001, seeing him still competitive at 51 is remarkable. For the man himself, it's just another lap in a career defined by defying expectations. With practice speeds this strong, the "Spider-Man" might just have one more climb up the fence left in him.