Carl Diehl of Hogan Truck Leasing, Inc., a NationaLease member based in Cleveland, Ohio, has won the 15th Annual NationaLease Tech Challenge. Diehl received the top honor during the 2025 NationaLease Maintenance Managers Meeting, held at the DoubleTree by Hilton Orlando at SeaWorld.
The finalists in this year’s competition were the top scorers from each of NationaLease’s nine regions in the U.S. and Canada, plus the next-highest overall scorer, based on a written exam of more than 100 questions. The final ranking was determined during the Hands-On Competition, hosted at Hogan Truck Leasing’s Orlando maintenance facility.
A graduate of Ohio Technical College, Diehl is an ASE Advanced Level Master Technician. He previously competed in the TMC National SuperTech competitions in 2022 and 2023, placing 28th and 20th, respectively. He was also a regional winner in 2022 and 2024.
Clyde Clinton Weathers III, also of Hogan Truck Leasing, placed as first runner-up. Brian Peters of Salem NationaLease earned second runner-up. All three will represent NationaLease at the TMC Annual SuperTech Competition in September.
The remaining field included:
- Region 1: Tyler Logan, VEL NationaLease
- Region 2: Cody Connell, Miller NationaLease
- Region 3: Eric Maynard, Aim NationaLease
- Region 5: Jack Lorenz, Kirk NationaLease
- Region 6: Mark Duselis, Aim NationaLease
- Region 7: Wade Murphy-Price, Airoldi Brothers NationaLease
- Region 9: John Norwood, Aim NationaLease
“Each year the skill and expertise we see in the Tech Challenge never fails to blow us away,” Joe Puff, Vice President of Truck Technology and Maintenance at NationaLease, said. “With multiple defending champions gunning for the title, there was no question that the competition would be fierce. Congratulations to Carl, our first and second runners-up, our station winners, and our finalists – the care and skill provided by these individuals is truly the lifeblood of our industry.”

