As one of the "speedster" superheroes, the Flash moves really fast. What does he do when he runs fast? For the sake of this question, "What would the Flash's tracks look like in damp sand?", let's say Wally West, Flash #3, runs a best effort marathon over damp sand in a solo race against you. You complete the race in a far distant 2nd place. You notice that you can see his footprints as you follow along. Does DC ever address what evidence gets left behind when the Flash wants to get someplace ASAP? Would the Flash leave a trail of millions & millions of incremental, teeny, tiny, little steps at super speed, the same number of footsteps as an average human running the same distance (except he'd take those steps faster than you can blink), or would his stride allow him to leave tracks that are incredibly few and far between while he vibrates by at see-through speed? Or does he change his style along the way? How does he run?

What would the Flash's tracks look like in damp sand?

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    I seem to remember an issue of Flash many years ago in which he had his previously-lost powers restored and perhaps increased. They arranged a timed test run for him across North America, to carry a vial of important blood serum to a hospital on the opposite coast. Ready, set, go!- The last page was a reporter's account of picking herself up from where she'd landed, ears still ringing, seeing windows shattered all around and a yard-wide path of melted asphalt and scorched earth leading perfectly straight out to the horizon...
    – Beta
    Commented Apr 25, 2012 at 20:32
  • They have, over the decades, had inconsistent representations of the Flash's powers. But events like the one you describe are the exception not the rule. Usually when they were about to increase or alter his powers, they would alter his energy conservation field so he would cause catastrophic damage as a side effect of his powers. But that is not the normal state of how his powers work. Commented Apr 26, 2012 at 3:48

2 Answers 2


Despite how silly it might seem, unless otherwise specified, speedsters run like everyone else. But all speedsters are not created equally so each speedster, depending on the mechanics of their super-speed, might leave a different footprint or spread of footprints depending on how their powers function and how how they are based in their comic physics.

This means the Flash and any other speedster unless their power remarks otherwise is running in the same way as any other person, one foot after another and their spacing for each footfall would be the same distance apart as any other runner. (Which begs to be asked, why don't their hip joints explode into flame after a few thousand steps at this incredible speed?)

To help visualize how this mechanic might work, we will borrow a page from superhero roleplaying games such as Hero Games Champions imprint, which uses a variety of game mechanics called "limitations, advantages or special effects" (the description of the power in question that might distinguish it from others with a similar power) that determine how that running is perceived by others.

This means you could have two players who are using super-speed in the game but each defines how that super-speed functions during the course of play and what that mechanic might look like.

For example: the Flash runs up walls because his power description says he is so fast he can defy gravity for a time. In Champions, this power limitation special effect is called "Flight while touching a surface." Other speedsters may have different "special effects" which might change the way their footprints appear on the ground.

However, the special effect of that running may prevent their footprint from being perceived in the same fashion. Some descriptions of other speedsters and how their powers are perceived (in their respective universes) and what their footprints might look like.

  • All of DC Comics Flashes powers include a temporal element that allows them to move quickly between two locations with a movement that resembles running, so to view their foot-falls it would appear to be the movement of a person who is moving very fast between two locations as a runner would. But their powers allow them to move without disturbing much of the environment around them unless they wanted to, so they might leave behind a foot-fall that would appear to be feather-light due to the nature of their power's conservation of energy and entropy. Even though any Flash can move faster than the speed of sound, he or she will not create sonic disturbances unless the boom and resulting over-pressure wave is a desired effect.

  • DC Comics, Superman, on the other hand, while capable of using super-speed, would not be able to claim the energy conservation capabilities of the Flashes and would leave deep footprints since part of his power would be derived from his application of his superhuman strength, reaction time and reflexes. He might also have a larger stride as well, a reflection of his strength being applied to his running.

  • Marvel Comics, Quicksilver and Speed Demon have dense, superstrong muscles, a denser than human bone structure and super-lubricated joints. They are both fast and strong, so they leave a deep footprint but would not be hindered by the sand because of their incredible strength. They may also have a slightly larger stride than an normal human their size.

  • Marvel Comics, Northstar is a mutant speedster capable of actual flight. If he were running, his footprints might have extremely long gaps between each footfall if he were partially running and flying, simultaneously.

  • Marvel Comics, Triathlon is known to be able to reach speeds of a hundred miles an hour, but his running is faster due to his extended stride which is a function of his superhuman strength and increased reflexes.

  • "Which begs to be asked, why don't their hip joints explode into flame after a few thousand steps at this incredible speed?" Because those whose hip joint exploded won't do any more running and won't be a recurring hero. The Flash's ability to run fast must logically include physically being capable of running fast.
    – Flater
    Commented Oct 9, 2017 at 9:53
  • You do know what a rhetorical question is? Commented Oct 15, 2017 at 23:49

People who run faster generally have longer strides. His footfalls would likely be much farther apart, perhaps on the order of hundreds of feet.

  • I don't think this is true, do you have a particular scene in a comic you're thinking of?
    – AncientSwordRage
    Commented Sep 11, 2012 at 21:49
  • @Pureferret Probably reallife - when running, both feet are off the ground at the same time
    – Izkata
    Commented Sep 11, 2012 at 22:42
  • @Izkata not on the order of a few hundred feet. See Thaddeus' answer
    – AncientSwordRage
    Commented Sep 11, 2012 at 22:45
  • @AncientSwordRage You are very false. In reality, no one can even run that fast, so it's a dumb question. Commented Dec 1, 2016 at 21:30

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