Air Force PAST vs Navy SEAL PST: Which Is Harder?

Battle Bunker April 14, 2026 3 min read

The Air Force PAST and the Navy SEAL PST are the two most-searched special warfare fitness tests in the U.S. military. They look similar at first glance: a swim, pull-ups, sit-ups, push-ups, and a run. The details, standards, and underwater demands make them very different tests. One naming note: the Air Force replaced the PAST with the Initial Fitness Test (IFT) in November 2021, but most people still call it the PAST.

If you are still on the standard Air Force fitness assessment, check your numbers with our Air Force PT calculator.


Side-by-Side Comparison

Minimums are official: the Air Force IFT worksheet (10 Jan 2023) for enlisted PJ, CCT, TACP, and SR, and MILPERSMAN 1220-410 for the SEAL PST.

Event AF PAST / IFT (enlisted) Navy SEAL PST
Order Calisthenics, run, then swims Swim first, then calisthenics, then run
Underwaters 2 x 25 m (Go/No Go) Not tested
Swim 500 m freestyle, breaststroke, or sidestroke: 15:00 for new enlistees, 12:30 for Guard, Reserve, prior service, and retrainees 500 yd sidestroke or breaststroke: 12:30
Pull-Ups 8 in 2 min 10, no time limit
Sit-Ups 50 in 2 min 50 in 2 min
Push-Ups 40 in 2 min 50 in 2 min
1.5-Mile Run 10:20 10:30

Which Events Differ Most

Underwaters: The PAST has them. The PST doesn't. Breaking the surface on either 25 m underwater fails the whole Air Force test, so it is as much a composure test as a fitness test.

Calisthenics: The sit-up minimum is the same (50). The SEAL PST asks for 10 more push-ups and 2 more pull-ups, and its commonly cited competitive marks (80 to 100 push-ups and sit-ups, 15 to 20 pull-ups) are higher than most Air Force prep targets.

Swim: The PAST swim is in meters (500 m is about 547 yd, roughly 9% further), but new Air Force enlistees get 15:00 to finish versus 12:30 on the PST. The PAST also allows freestyle; the PST does not allow any overhand recovery.

Run: The minimums are within 10 seconds of each other (10:20 vs 10:30). On the PST the run comes last, after the swim; on the PAST it comes before the swims.

Which Pipeline Is Harder Overall?

Both pipelines lose a large share of the candidates who start them. But the demands differ:

  • BUD/S (Navy): Months of continuous assessment in Coronado, including Hell Week in First Phase and constant cold water exposure.
  • Air Force Special Warfare: The length depends on the career field, and every pipeline runs well over a year. All of them demand advanced technical skills on top of fitness.

BUD/S is widely considered the most physically punishing. Pararescue is often called the most technically demanding. Both have brutal failure rates.

Common Events Both Test

If you train for both, you're preparing the same fitness base with slightly different weights on each event:

  • Swim fitness
  • Pull-up volume
  • Core endurance
  • Running economy

Differences are marginal for the aerobic and muscular endurance portions. The real differentiator is psychological demand: underwaters, cold water tolerance, and the selection environment.

How to Train for Either

Volume, technique, and the mental game:

  • Swim 3x per week in a pool with technique focus
  • Dry-land CO₂ tolerance work (never breath-hold training alone in water)
  • Pull-up greasing the groove daily
  • High daily calisthenics volume (200+ push-ups, 200+ sit-ups)
  • 4 runs per week with intervals and a Zone 2 base

Score your SEAL PST →

Score your AF PAST →

Picking Your Path

Pick based on mission, not test difficulty. PJ work (saving lives in combat zones) is fundamentally different from SEAL work (direct action). The test is just the entry gate. The job is what matters.