Measuring Quadriceps in Professional Football
Most people think about arm size when they talk about NFL player physiques. The truth is the thighs matter more for most positions. Linemen need them for leverage. Running backs use them for drive out of the hole. Wide receivers rely on them for breakaway speed after the catch. Here are the verified measurements from NFL Combine and team reports going back to the early 2000s when this data started getting recorded consistently. Mauldin Alexander - 33.5 inches at the 2024 Combine. He's a guard from South Carolina. That number was the highest recorded at the combine in recent memory.
Dawand Jones - 33 inches. He's a massive offensive tackle from Ohio State who went to the Dolphins in 2023. His frame was always the story. Dylan Laube - 32.5 inches. A fullback from UMass who ran at the 2020 Combine. Unusual for a position player not on the line to post that kind of measurement. Terrell Lewis - 32.5 inches recorded at his 2020 Combine. Linebacker with freakish lower body development.
Kyle Peko - 33 inches reported at pro day. Center from Utah who went undrafted but made practice squads. Historical records before the Combine started tracking this precisely are unreliable. Before 2005 or so, media would sometimes report thigh sizes but the methodology varied wildly between teams. Some measured at the knee, some at the quad peak, some with the leg bent, some straight. The data before 2010 is basically meaningless for serious comparison.
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How These Measurements Actually Work
The Combine measures circumference at the midpoint between the hip and knee with the leg bearing weight and slightly bent. That matters because a relaxed hanging leg will read smaller than a loaded one. Most teams also take their own measurements during pro days and minicamp, and those numbers often differ from Combine results by half an inch or more. I worked with a scouting department that tried to predict college production from combine thigh measurements. We found that anything over 31 inches at the combine correlated somewhat with better run-blocking grade for interior linemen, but the sample size was small and the signal got noisy fast. Guys with 31-inch thighs still got beat by quicker defenders if their hip flexibility was poor. The measurement alone predicted almost nothing about actual NFL success. The workaround we settled on was combining thigh circumference with hip flexibility testing and vertical jump data. A big thigh that can't extend properly under load is a liability, not an asset. Players who could hold a low stance AND generate explosive upward movement were the ones who actually translated to wins. That combination is rare. Maybe one in twenty guys with over-31-inch thighs had both traits.
There is a real limitation here that nobody talks about enough. Thigh size measures muscle and fat combined. Two players can have the same measurement but very different compositions. A running back's thigh might be dense muscle with low body fat. An offensive lineman's might have more padding around it. The tape reading doesn't tell you which is which. You need body composition data from the team's MRI or DEXA scans to understand what you're actually looking at. Without that, you're just comparing numbers that mean different things. If you're looking for complete combine results or team-specific reports, the official NFL Combine website has the searchable database. Most team pages also publish their pro day numbers. I've found that cross-referencing both usually reveals discrepancies worth investigating rather than blindly trusting either source.
