A 20-second lead evaporated with 45 minutes left. Mikael Grenier, piloting the dominant No. 34 JMF Motorsports Mercedes-AMG GT3, slowed on track with an oil leak at Sebring International Raceway on Saturday and never made it back to the pits under his own power. What should have been a third consecutive Pro class victory for JMF turned into a DNF and a yellow flag that reshuffled everything behind it.
That cruel twist handed the spotlight to the team’s other car, and the No. 27 crew made something of it.
First-year co-drivers Jason Daskalos and Lorcan Hanafin, who had been scrapping near the front of Pro-Am all afternoon, found themselves in the lead when the green flag dropped with under 30 minutes remaining. Then Hanafin, making his Sebring debut, got muscled offline by a rival attempting a pass at the restart. He fell back, salvaged fourth, and was later promoted to third when officials slapped the offending car with a time penalty.
A podium earned through attrition and post-race adjudication rarely feels satisfying. Daskalos didn’t pretend otherwise. “It has been a rough year, leading every race into a pit stop and then just having some bad luck,” he said. “Today again, and leading again, we had some bad luck.”
Hanafin, the young Irish driver still learning American circuits, called it “not exactly the baptism of fire that I had anticipated” but credited the team for clawing back a result from a weekend that started ugly.
The bigger story at JMF is the gap between potential and results. The No. 34 car won both opening rounds at Sonoma and COTA, started from pole at Sebring, and led comfortably before mechanical failure intervened. Grenier and Michai Stephens still hold a 15-point Pro class championship advantage, but that cushion shrank in a hurry on Saturday.
Four weekends remain, including the double-points Indianapolis 8 Hour in October, where reliability will matter as much as raw pace. “This one stings,” Stephens said. “It’s the nature of motorsport that it’s beauty and the beast.”
Meanwhile, in Pirelli GT4 America, the No. 39 Dome Motorsport Mercedes-AMG GT4 finally cashed in on the speed it has shown all season. Marc Miller and Allen Patten took second in Pro-Am in Friday’s 60-minute sprint, finishing just .766 of a second behind the class winners. Patten has now started from Pro-Am pole in three consecutive races, and the pair followed up with a fourth on Saturday.
Miller was blunt about what has been missing. “The team deserves a win, and we certainly are owed one or two or even three, but we also needed a finish,” he said. He pointed to a slightly conservative pit stop window as the difference between fighting for the victory and chasing it.
Across both GT3 and GT4, the Mercedes-AMG customer racing operation at Sebring told a consistent story: fast enough to lead, fragile enough to lose. JMF’s GT3 program has the pace to dominate, and three weekends in, nobody disputes that. But speed without durability is just expensive practice.
The Dome GT4 effort has been bitten repeatedly by circumstance, and Miller’s relief at simply finishing cleanly said more than any trophy could.
The next round at Michelin Raceway Road Atlanta in mid-June marks the halfway point of both championships. For JMF’s Pro class entry, the math still looks favorable. For the Pro-Am cars in both series, Road Atlanta is where the narrative either shifts from promising-but-unlucky to genuinely competitive, or it doesn’t.
Nobody at JMF is short on confidence. What they need now is a race where nothing breaks, nobody crowds them off line, and the speed they clearly possess actually sticks to the scoreboard.
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