Birdies were flying in the first round of the 2025 Rocket Classic at Detroit Golf Club. With afternoon thunderstorms skirting the area and little wind around teh course, players had their way with the Donald Ross design as the field scoring average came in at nearly three strokes under par in Round 1.

Jake Knapp broke the course record set in Thursday's first round by Kevin Roy and Aldrich Potgieter. They each posted a 62 but a day later, Knapp, who shot even-par 72 in Round 1, shot 11-under 61.

Jake Knapp shot an 11-under 61 to break a Rocket Classic record that stood for less than a day, becoming the first PGA Tour player to break 60 and shoot a 61 or lower in the same season