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Knockout and knockdown in boxing: what they are and how the referee's count works

Boxing guide · ABC Unified Rules and BBBofC 2025

Victory by knockdown. So why did the referee stop the boxer if he is standing? What is this technical knockdown thing? And many other questions that are often heard from non-boxing fans who decide to watch a match. The structure of fight stoppages can indeed look a bit complicated. Therefore, we explain the basics in simple terms.

What is a knockdown

According to the ABC Unified Rules, a knockdown is when a boxer touches the canvas of the ring with any part of the body other than the soles of their feet, as a result of a legal punch. You can also often hear the definition "touched the ring with a third point," where the two points refer to the soles of the feet. In addition, a knockdown can be counted when an athlete is in a defenseless position, hanging on the ropes – when the boxer is saved from falling only by the fact that they have transferred their entire weight to the ring barriers.

An important nuance: not every fall of an athlete is a knockdown. The referee distinguishes between a knockdown and a fall resulting from the boxer losing balance – slipping, a push, etc. If the boxer fell due to their own clumsiness rather than from a punch, the referee may not start the count. But if the fallen boxer does not get up, the count starts anyway.

Why the referee counts up to 8 even if the boxer gets up immediately

After every knockdown, the referee is obligated to count to eight seconds – regardless of how quickly the boxer gets up. This is a mandatory count, enshrined in the rules of boxing as a standard procedure for all bouts.

The rule appeared in 1953 thanks to the New York State Athletic Commission – precisely as a protective mechanism. Before this, a boxer could get up on the count of "nine" and immediately continue the fight without any pause. Now, eight seconds is the minimum protective interval during which the referee assesses the fighter's condition. While the count is ongoing, the opponent stands in a neutral corner – they cannot attack.

A knockdown count should not be considered merely a conditional punishment. Yes, in professional boxing, a knockdown immediately leads to the round score becoming 10-8 in favor of the one who managed to send their opponent down – even if the boxer who landed the punch was losing the entire round before that. However, the 8 seconds are given, among other things, for the athlete to recover and return to the match.

Professionally recovering after taking a hit is a separate art. You need to give the body time to recover, but also manage to get up on time. Often, by sensibly approaching this short count, a boxer can easily get back into the fight. And conversely, by rushing, lose it within the next few punches.

KO and TKO – what is the difference

A knockout (KO) occurs when a boxer does not get up from the canvas before the count of ten. The referee declares the bout over. A clean landed punch – a fall – a premature end of the bout.

A technical knockout (TKO) occurs when the referee stops the fight without waiting for a fall. There can be several reasons: the boxer is not defending and is taking punches, cannot continue due to an injury, or the corner throws in the towel. The referee's decision to stop the fight without a count is a technical knockout.

Conditional situations: a boxer takes punches, does not respond, the referee stops the fight – this is a TKO. A boxer took a punch, was in a knockdown, but got up. The opponent went for the finish, started landing, and the referee stopped the match – this is also a TKO. That is, TKO is "the referee decided it's dangerous to continue." KO is "the boxer couldn't get up themselves."

Three knockdowns in a round – an existing rule or a relic of the past?

There are two opposing views. First: three knockdowns in one round – and the fight automatically stops. Second: you can experience any number of knockdowns – the fight ends not because of this, but due to the referee's decision or the state of the body. The truth is in both.

According to the ABC Unified Rules and the rules of all four major organizations, the three-knockdown rule does not apply to championship fights. In title bouts, the referee decides whether to stop or continue, even if the boxer has fallen three times. Some US states (specifically Florida, Michigan, Arizona) still use this rule for non-championship fights. But at the highest level – no.

Nowadays, the three-knockdown rule is not used very often. Teams base their approach on the rules of the boxing federation operating in the territory where the bout takes place. They also agree among themselves on the application or non-application of this rule. Most of the time, the decision to stop the fight rests precisely on the referee and the athlete's corner.

What a knockdown means for the score

You can read in detail about the impact of a knockdown on the judges' scorecards in the article about the 10-point system. Briefly: a round with a knockdown is automatically scored 10-8 in favor of the one who delivered it – rather than the standard 10-9. Two knockdowns in one round – 10-7. That is why a knockdown affects not only the boxer's health but also the overall score even if the fight continues.

What happens when a boxer falls from an accidental clash

If a boxer falls due to an accidental clash of heads or another unintentional contact – the referee may not score a knockdown. In this case, the score will not affect the judges' scorecards.

But if the fight is stopped due to an injury from such a knockdown before a sufficient number of rounds have been reached – a technical draw is declared. If the fight has gone a longer distance (usually longer than 3-4 rounds) and one of the boxers received an injury from an incident unrelated to a punch – a dangerous head clash leading to a cut, or falling out of the ring – the judges move to scoring the points at the moment of the stoppage. Whoever was leading on the cards wins.

The referee is the boss in the ring. They stop the fight when they see that the boxer cannot continue

The most important rule – the referee is not obliged to wait for a fall. If the boxer is standing but clearly unable to defend themselves and is taking punches, the referee has the right to stop the bout and declare a TKO.

It is important to understand that the primary function of the third person in the ring is not to allow severe injuries to the athlete, to protect their life and health. And only after that to care about entertainment and adherence to the rules. Even if the boxer themselves wants to continue, it is the referee who decides whether the bout will continue.

The same applies to the towel thrown in by the corners or consulting with a doctor. In the first case, even if the corners threw in the towel during the round, the referee may not stop the contest. In the second, when the doctor advises the referee to stop the bout due to an injury – a hematoma, cut, etc. – it is the referee who makes the decision. The doctor only performs a consultative function and cannot pull a fighter from the match.

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Sources: ABC Unified Rules of Boxing (abcboxing.com) · BBBofC Rules of Boxing 2025 (bbbofc.com) · Boxing Insider
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