Uppercut

Last updated: March 21, 2026

What is an uppercut?

The uppercut is one of the six fundamental punches in boxing and MMA. It follows a vertical path from low to high, starting near the attacker’s waist and rising toward the chin, solar plexus, or ribs. In the standard boxing numbering system, the lead uppercut is punch number 5 and the rear uppercut is number 6.

What separates the uppercut from every other punch is its direction. Jabs and crosses travel forward in a straight line. Hooks swing horizontally. The uppercut rises. That upward path lets it slip between an opponent’s guard, which is designed primarily to stop punches coming from the front or the sides.

In MMA, the uppercut appears most often during exchanges at close range, in the clinch against the cage, and as a counter against opponents who lean forward or shoot for takedowns. A fighter moving their head downward to change levels for a takedown is walking directly into the uppercut’s path, which makes it a natural defensive weapon against grapplers.

The punch has a long history. Samuel Elias, a bare-knuckle boxer known as “Dutch Sam” in the early 1800s, is credited with inventing what was then called the “undercut.” According to the Tacoma News Tribune (1924), Dutch Sam created such problems with the new blow that opposing fighters had to develop entirely new ways to block it.

How the uppercut works in MMA

The mechanics are built around vertical force. The punching arm stays bent at roughly 90 degrees, and the fist travels straight up through the target. A 2020 study by Dinu and Louis published in Frontiers in Sports and Active Living found that the shoulder is the most active joint during the uppercut, more so than in the cross (where the elbow dominates) or the hook (where the pelvis plays a larger role).

Most of the power comes from below the waist. The fighter drops slightly by bending the knees, then drives upward through the legs and hips while the fist rises. That leg-driven force is why the uppercut can hit so hard despite covering such a short distance. No other punch channels the output of the lower body as directly.

Range matters more here than with other strikes. An uppercut thrown from too far away loses its upward trajectory and becomes a looping, arm-powered punch with little behind it.

Thrown at close range, though, it can end a fight. The 2025 study by Barley et al. in the International Journal of Performance Analysis in Sport, which analyzed 264 UFC bouts ending in KO/TKO between 2020 and 2022, found that hooks (51%) and straights (35%) accounted for the majority of fight-ending punches. Uppercuts made up a smaller share, partly because they require fighters to be at closer range to land them cleanly.

Types of uppercuts

The uppercut has several variations, each suited to a different situation.

Lead uppercut: Thrown with the front hand (left for orthodox fighters, right for southpaw). It covers more distance than the rear uppercut and reaches its target faster, but carries less power. Fighters often use it to break through a tight guard or disrupt an opponent’s rhythm.

Rear uppercut: Thrown with the back hand. This is the more powerful version because the full rotation of the dominant hip and shoulder adds force. It requires the fighter to be closer, and it is commonly used at the end of combinations or as a counter.

Body uppercut: Aimed at the ribs, liver, or solar plexus rather than the chin. A clean body uppercut to the liver, which sits on the right side of the torso, can end a fight on the spot. The pain response from a liver shot is involuntary and overrides conscious toughness.

Counter uppercut: Thrown in response to an opponent’s attack, typically after ducking under a hook or slipping a straight punch. The ducking motion naturally loads the legs in the same bent-knee position that an uppercut starts from, making the transition seamless.

Uppercut vs. hook

The uppercut and the hook are both close-range power punches, but they arrive from opposite directions and create different problems for the opponent.

The hook swings horizontally, targeting the side of the head or body. It goes around the guard. The uppercut rises vertically, targeting the chin or torso from below. It goes through the guard, splitting the hands.

Defensively, the two punches expose the thrower in different ways. A hook temporarily pulls the hand away from the chin and opens the ribs on the throwing side. An uppercut drops the hand below the chin and exposes the face to straight counters.

In terms of how often they end fights, hooks are more common finishers. The Barley et al. 2025 study found hooks responsible for 51% of punch-based KO/TKOs in the UFC sample, compared to a smaller share for uppercuts. Hooks can be thrown effectively from a wider range of distances, while uppercuts need to be thrown at close quarters to land with full force.

	Uppercut	Hook
Direction	Vertical (upward)	Horizontal (sideways)
Guard bypass	Splits between the hands	Goes around the guard
Optimal range	Very close	Close to mid-range
Power source	Legs and hips (lifting motion)	Hips and shoulders (rotation)
Main risk	Drops hand, exposes face	Opens ribs on throwing side

Frequently Asked Questions

What number is the uppercut in boxing?

The lead uppercut is punch number 5 and the rear uppercut is number 6 in the standard boxing numbering system. Odd numbers are lead-hand punches, even numbers are rear-hand punches.

Is the uppercut the most powerful punch in boxing?

It can be. The uppercut generates force through the legs, which are the strongest muscles in the body. Whether it hits harder than a cross or hook depends on the fighter and the situation. What makes the uppercut dangerous is less about raw force and more about the angle: opponents often do not see it coming.

Can you throw an uppercut to the body?

Yes. Body uppercuts target the ribs, solar plexus, or liver. A liver uppercut thrown with the lead hand is one of the most fight-altering strikes in combat sports because the pain response is involuntary.

Why are uppercuts risky to throw?

Throwing an uppercut requires dropping the punching hand below the chin, which leaves the face exposed to straight counters. Miss badly, and the fighter ends up off-balance and out of position. Uppercuts are almost always set up with other punches first rather than thrown in isolation for this reason.

What is the difference between a lead uppercut and a rear uppercut?

The lead uppercut comes from the front hand and is faster but less powerful. The rear uppercut comes from the back hand and carries more force because the full hip rotation of the dominant side drives the punch.

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Sources

1. Barley, O.R., et al. “Exploratory analysis of fight-ending punches in the Ultimate Fighting Championship mixed martial arts promotion.” International Journal of Performance Analysis in Sport, 2025.
2. Dinu, D. and Louis, J. “Biomechanical Analysis of the Cross, Hook, and Uppercut in Junior vs. Elite Boxers.” Frontiers in Sports and Active Living, 2020.
3. Wikipedia. “Uppercut.” Accessed March 2026.
4. Evolve MMA. “3 Uppercuts Variations And 6 Ways To Use Them.” Evolve Daily. Accessed March 2026.
5. Evolve MMA. “Boxing 101: How To Land An Uppercut.” Evolve Daily. Accessed March 2026.
6. FightCamp. “The Punch Number System 1-6 Explained.” Accessed March 2026.
7. SportsLingo. “What Is An Uppercut?” Accessed March 2026.

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