Doctor Strange is a Master of the Mystic Arts who wields a number of powerful spells and artifacts, making him a dangerous threat. Beating the Flash as simple as Doctor Strange moving the battlefield to another dimension or changing into one of his more powerful forms.
No one with a physical form can beat the peak form of Wally West. His speed is unrivaled in the universe, and with enough preparation and focus, beat teleportation. In an actual comic book, though, anyone can beat Wally. It's a matter of the writer, and usually not the fighters.
The Flash is secretly the most powerful member of the Justice League, and if so inclined, could kill practically anyone in the DC Universe. The Justice League boasts some of the most powerful heroes in all of fiction, with some even capable of surviving the end of the world itself.
The Flash's Speed Would Overwhelm The Wall-Crawler
The fight might be close, but Spider-Man would have a difficult time slowing down the Flash enough to beat him. Spider-Man definitely has a chance to land a few good blows, but the Flash is just too fast and unpredictable for him to beat.
While Superman is one of the most powerful heroes in the DC Universe, enhanced to godlike levels by the Sun's radiation, The Flash's physics-defying powers are capable of killing him not by playing on his famous vulnerability to magic or his weakness to Kryptonite, but simply by hitting him so hard, even his ...
He can travel through space unharmed and can summon powerful bolts of lightning with his indestructible enchanted hammer. The Flash may be able to escape harm for a bit, but in the end, Thor would be too strong for the Flash to withstand.
The Flash Has Always Been Faster Than Superman
The Flash is the Fastest Man Alive, and that includes being faster than Kryptonians. While Superman is powerful and a close second as the world's fastest hero, he can't top the Speed Force.
Deadpool wouldn't be able to touch flash and flash wouldn't be able to kill deadpool. It's a never ending fight, if there was any fighting at all.
Quicksilver, Marvel's Answer to The Flash
Quicksilver has actually had two adaptations in superhero movies, once by Evan Peters in Fox's X-Men: Days of Future Past (2014), where he had that iconic kitchen scene that really showcased his speed, as everything was slowed around him.
There is absolutely nothing that Flash can do to the Hulk, there is no way that he can hurt him, hulk has fought intangible beings before.
Superman is an example of a superhero who is bulletproof in this sense. However, the Flash isn't. As other answers here indicate, the recent Year One shows that bullets can indeed penetrate the Flash's skin and cause him serious, potentially lethal injury.
Black Widow doesn't have any superpowers, but her training allows her to take on almost any opponent, including a hero with the powers of DC's Flash.
Powers and abilities
Superhuman speed: Because of the low-key manner in which Wally created the original Flash's accident, Kid Flash was exceptionally slower than his mentor, at speeds approaching the speed of sound.
Wally himself has performed several feats and made several references to be faster than Barry and having surpassed him. Wally is fast enough to easily break all the speed barriers and even enter the Speed Force.
Hunter Zolomon
Wally West's greatest villain and arguably “faster” than any speedster, Hunter Zolomon is most commonly known as Zoom (though he has also gone by the Reverse-Flash).
In all cases, Thor reads about twice as fast as Flash! In the context of a physical race between the characters, the difference in speed is more interesting. The Flash travels at ludicrous speed, let's say realistically at the speed of light or 670,616,629 miles-per-hour.
While it is fairly obvious that the Flash could run circles around Thanos under normal circumstances as his powers make him virtually untouchable, there wouldn't be much the Scarlet Speedster could do if he was around for Thanos' Infinity Snap as there is no way to outrun the god-like power of cosmic chance.
The lone Godspeed proclaimed their defeat due to Impulse's recklessness, before attacking the Flash. But the Flash was able to phase through his attack and the Godspeed, defeating them.
The Flash Would Run Circles Around Black Panther
Nothing Black Panther could do would help him against the Flash. Any attack could be vibrated through and while T'Challa is much smarter than Barry, Barry knows how to use his speed as a weapon in ways that would give Black Panther a run for his money.
Given the Flash's access to the Speed Force which grants him god-like abilities beyond that of simply super speed, it is no surprise that he would be able to defeat Wolverine one-on-one.
Considered impossible on all levels, outrunning death is a feat that no one but Wally West has ever accomplished. Not only did he outrun his own death, he also outran the death of the entire DC Universe in The Flash #141 by Mark Millar, Pop Mhan, Joshua Hood, Chris Ivy, Tom McCraw, and Gaspar Saladino.
In a competition of speed between the Blue Blur and the Scarlet Speedster, it will take more than math and science to really comprehend their overall speed. However, taking all things we know into account, Flash would win a typical race against Sonic the Hedgehog and come out as the faster of the two.
Many characters have carried the mantle of the Flash and many different versions of these famous speedsters over the years. We can confirm that Shazam is slower than all of them. It doesn't matter whether we compare Shazam to Jary Garric, Wally West, or Barry Allen; why will Shazam never reach those speeds?
Quick Answer: Barry Allen may be known for his superspeed, but just how fast can he run? Unfortunately for fans, it's not quite the speed of light. According to The Flash, Allen's top speed is Mach 3.3, or 2,532 miles per hour.