12-6 Elbow

Last updated: May 11, 2026

What is a 12-6 elbow?

A 12-6 elbow is a downward strike delivered with the point of the elbow, travelling in a vertical line from above the head straight down toward the target. The name comes from the analogy of a clock on the wall: the elbow starts at the 12 o’clock position and finishes at 6 o’clock, with no arc or angle change between.

The official term used by the Unified Rules of MMA is “downward elbow strikes,” but commentators and fans almost always refer to it as a 12-6 elbow or, when spoken, a “twelve to six elbow.” The definition that became standard inside MMA was developed by referee John McCarthy, who based it on a fixed clock-face perspective. The clock is on the wall, not relative to the fighter’s body. This matters because an upside-down fighter throwing what looks like a downward elbow from their back is not throwing a 12-6. McCarthy explained the logic plainly: “the clock doesn’t move.”

Any elbow on an arc or lateral path is legal in MMA. Even an 11-to-5 elbow, just a hair off vertical, has always counted as legal under the rules. Angle, not force, was always what mattered.

Why was the 12-6 elbow banned in MMA?

The 12-6 elbow was outlawed when the Unified Rules of Mixed Martial Arts were drafted in 2000 at a meeting in New Jersey. The meeting brought together representatives of the UFC, Pride Fighting Championships, the International Fighting Championships, plus state commission doctors and referees. According to Wikipedia’s record of the meeting, doctors raised concerns after watching footage of an IFC bout in which downward elbows were thrown to the back of an opponent’s head, and one doctor refused to sanction any ruleset that did not specifically prohibit them.

The rule that emerged, written by Nick Lembo, banned all “downward elbow strikes.” John McCarthy later said the wording was “poorly” defined and left referees with too much room for interpretation. The justification cited at the time included potential damage to the orbital bone and the risk of spinal injury when a larger fighter threw the strike against a much smaller opponent, a concern that mattered more in an era before weight classes were universally standardised.

A widely repeated story, often told by Joe Rogan on UFC broadcasts, was that commissioners had banned the strike after watching traditional martial artists break bricks and concrete slabs with downward elbows and concluding the technique was too dangerous. Keith Kizer of the Nevada State Athletic Commission later dismissed that account as “revisionist history.”

Scientific scrutiny eventually undermined the safety rationale. A study conducted with Auburn University Montgomery measured the force of 12-6 elbows from full mount, side control, and standing positions, comparing them to other legal elbow strikes such as hammerfists and east-west elbows. The researchers concluded that the 12-6 elbow posed no greater risk of lacerations or traumatic brain injury than other legal elbow strikes to a downed opponent, per a summary published by Combat Sports Law in May 2023.

The rule produced its single most famous controversy at The Ultimate Fighter 10 Finale in December 2009. Jon Jones dominated Matt Hamill, then landed 12-6 elbows from full mount. Referee Steve Mazzagatti deducted a point. Hamill, who is deaf and had blood in his eyes, could not continue, and the result was changed to a disqualification. Hamill said he was unable to defend against the strikes. That disqualification remains the only loss on Jon Jones’s professional record. UFC president Dana White and others have campaigned for years to have the result changed to a no-contest, with no success to date.

12-6 elbow vs other elbow strikes

For most of MMA’s existence, the 12-6 was the only elbow strike singled out as illegal. Other angles were all legal. Some of those legal angles generated more force than a downward elbow. The table below shows how the 12-6 sits alongside other elbow types that fighters commonly throw.

Elbow type	Path of motion	Pre-Nov 2024	Post-Nov 2024
12-6 elbow	Straight vertical, 12 to 6	Illegal	Legal
11-7 elbow (slight angle)	Near-vertical with slight angle	Legal	Legal
9-3 elbow (horizontal)	Side-to-side, parallel to floor	Legal	Legal
Spinning back elbow	Rotational strike on a horizontal arc	Legal	Legal
Upward elbow	Driven upward into the chin or jaw	Legal	Legal
Diagonal elbow (clinch)	Angled strike along an arc	Legal	Legal

MMA referees disagreed about where the line sat. Herb Dean, for example, treated horizontal elbows from side control (sometimes called 9-3 elbows) as functionally a 12-6 because the clock orientation moved with the striker’s body. Matt Hume, chief referee of One Championship, pointed out the absurdity of the wording: “if you change the time to 11:59, it is no longer illegal.”

When did 12-6 elbows become legal?

On 30 January 2024, the Association of Boxing Commissions’ MMA Rules Committee voted to remove the 12-6 elbow from the list of fouls under the Unified Rules. The full ABC committee later approved the change, with an effective date of 1 November 2024 pending sign-off from individual state athletic commissions. The proposal came from California State Athletic Commission director Andy Foster, alongside Massachusetts commissioner Mike Mazzulli.

The UFC implemented the new rule at UFC Fight Night 246 on 2 November 2024, less than 48 hours after it took effect. Two weeks later, at UFC 309 on 16 November 2024, Jon Jones, the most famous victim of the old rule, entered the cage at Madison Square Garden against Stipe Miocic in his first fight since the ban was lifted. Jones won the heavyweight title defence by TKO at 4:29 of the third round. He finished the fight with a spinning back kick to the body rather than a 12-6 elbow, although he did use elbows from top position throughout the bout, according to Sherdog’s round-by-round coverage.

Adoption has not been universal. The Unified Rules function as guidelines that each state commission must individually approve, and historically, not every commission moves at the same pace. Mississippi, for example, was already permitting 12-6 elbows long before the federal-level rule change. Fighters and officials continue to confirm which version of the rules applies before each event.

Frequently Asked Questions

Are 12-6 elbows legal in MMA?

Yes. Under the Unified Rules of MMA, 12-6 elbows have been legal since 1 November 2024, when the Association of Boxing Commissions removed the strike from the list of fouls. Individual state commissions must adopt the change, and most major commissions have done so.

Why was Jon Jones disqualified for using a 12-6 elbow?

At The Ultimate Fighter 10 Finale in December 2009, Jones landed multiple 12-6 elbows on Matt Hamill from full mount. Hamill could not continue, and referee Steve Mazzagatti ruled the fight a disqualification rather than allow the result to stand as a stoppage win. It remains the only loss on Jones’s professional record.

Has Jon Jones’s loss been overturned now that the rule has changed?

No. As of the most recent rulings, the disqualification still stands. Dana White and others have lobbied athletic commissions for a no-contest ruling, but the result has not been formally changed.

What is the difference between a 12-6 elbow and a 9-3 elbow?

A 12-6 elbow drops straight down; a 9-3 elbow swings horizontally, parallel to the floor. Despite the matching clock-position naming, only the 12-6 was singled out as illegal under the Unified Rules, although some referees historically interpreted 9-3 elbows from side control as 12-6s.

Why was the 12-6 elbow originally banned?

The ban dates to the 2000 drafting of the Unified Rules. State commission doctors argued the vertical trajectory was uniquely dangerous and risked orbital and spinal injuries. A 2023 study referenced by Combat Sports Law later found 12-6 elbows posed no greater risk than other legal elbow strikes.

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Sources

1. Wikipedia. “12–6 elbow.” Accessed May 2026.
2. Wikipedia. “Jon Jones.” Accessed May 2026.
3. Wikipedia. “UFC 309.” Accessed May 2026.
4. ESPN. Brett Okamoto. “ABC votes to remove ‘12-6 elbow’ ban, redefines grounded opponent.” July 2024.
5. CBS Sports. “Commission removes 12-6 elbows from Unified MMA rules, updates grounded opponent rule.” July 2024.
6. Combat Sports Law. “Data Shows 12-6 Elbows No More Dangerous Than Other Legal Strikes.” May 2023.
7. MMA Junkie (via Yahoo Sports). Coverage of Jon Jones’s UFC 309 12-6 elbow comments. November 2024.
8. Sherdog. “UFC 309 ‘Jones vs. Miocic’ Play-by-Play, Results & Round Scoring.” November 2024.

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