(This story was updated to add new information.)

The heavyweight title is on the line Saturday in the UFC 309 main event when Jon Jones (27-1 MMA, 21-1 UFC) puts his belt up for the first time when he takes on former champ Stipe Miocic (20-4 MMA, 14-4 UFC).

Take a look at a chronological history of the UFC’s heavyweight title, which the promotion uses to claim its holder as “the baddest man on the planet.”

Mark Coleman

Mark Coleman

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Date: Feb. 7, 1997
Event: UFC 12
Opponent: Dan Severn
Total reign: 170 days
Title defenses: None

Maurice Smith

Maurice Smith, UFC 19

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Date: July 27, 1997
Event: UFC 14
Opponent: Mark Coleman
Total reign: 147 days
Title defenses: Tank Abbott

Randy Couture

Randy Couture, UFC 15

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Date: Dec. 21, 1997
Event: UFC Japan
Opponent: Maurice Smith
Total reign: N/A
Title defenses: None
Notes: Couture was stripped of the title in January 1998 and left the promotion in a contract dispute.

Bas Rutten

Bas Rutten

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Date: May 7, 1999
Event: UFC 20
Opponent: Kevin Randleman
Total reign: 34 days
Title defenses: None
Notes: Rutten won the title left vacant by Randy Couture. But he quickly vacated the belt when he dropped to light heavyweight, then retired.

Kevin Randleman

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Date: Nov. 19, 1999
Event: UFC 23
Opponent: Pete Williams
Total reign: 364 days
Title defenses: Pedro Rizzo

Randy Couture

Randy Couture

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Date: Nov. 17, 2000
Event: UFC 28
Opponent: Kevin Randleman
Total reign: 490 days
Title defenses: Pedro Rizzo (twice)
Notes: Couture returned to the promotion after a contract dispute and recaptured the title he held three years prior. He also went into the history books as the UFC’s first repeat heavyweight champion.

Josh Barnett

Josh Barnett

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Date: March 22, 2002
Event: UFC 36
Opponent: Randy Couture
Total reign: 126 days
Title defenses: None
Notes: Barnett was stripped of the title in July 2002 after he tested positive for steroids.

Ricco Rodriguez

Date: Sept. 27, 2002
Event: UFC 39
Opponent: Randy Couture
Total reign: 154 days
Title defenses: None
Notes: Rodriguez won the belt vacated by Josh Barnett when he was stripped for a positive steroid test.

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Tim Sylvia

Date: Feb. 28, 2003
Event: UFC 41
Opponent: Ricco Rodriguez
Total reign: 229 days
Title defenses: Gan McGee
Notes: Sylvia was stripped of the title in October 2003 after he tested positive for steroids.

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Frank Mir

Frank Mir

Date: June 19, 2004
Event: UFC 48
Opponent: Tim Sylvia
Total reign: 419 days
Title defenses: None
Notes: Mir’s title win is famous because he broke Sylvia’s arm. But Mir was in a motorcycle accident post-title and was on the shelf long enough to have his belt stripped in August 2005.

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Andrei Arlovski (interim, then undisputed)

Andrei Arlovski

Date: Feb. 5, 2005
Event: UFC 51
Opponent: Tim Sylvia
Total reign: 246 days
Title defenses: Justin Eilers, Paul Buentello
Notes: Arlovski beat Sylvia, who previously was stripped for steroids, for an interim belt while Frank Mir was out with injuries from a motorcycle crash. After one defense as interim champ, Arlovski was promoted to undisputed titleholder.

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Tim Sylvia

Tim Sylvia

Date: April 15, 2006
Event: UFC 59
Opponent: Andrei Arlovski
Total reign: 322 days
Title defenses: Andrei Arlovski, Jeff Monson
Notes: Sylvia won the title for a second time when he beat Arlovski in a rematch. He beat him again three months later to run his record to 2-1 in their trilogy.

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Randy Couture

Date: March 3, 2007
Event: UFC 68
Opponent: Tim Sylvia
Total reign: 623 days
Title defenses: Gabriel Gonzaga
Notes: In one of the most dramatic moments in UFC history, Couture started his third reign as champion and became the first fighter in UFC history to win titles in two weight classes.

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Antonio Rodrigo Nogueira (interim)

Antonio Rodrigo Nogueira

Date: Feb. 2, 2008
Event: UFC 81
Opponent: Tim Sylvia
Title defenses: None
Notes: Nogueira won an interim belt while Randy Couture was in a contract dispute with the UFC.

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Brock Lesnar

Dec 30, 2011; Las Vegas, NV, USA; UFC fighter Brock Lesnar after being defeated by Alistair Overeem (not pictured) during a heavyweight bout at UFC 141 at the MGM Grand Garden event center. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports

Date: Nov. 15, 2008
Event: UFC 91
Opponent: Randy Couture
Total reign: 707 days
Title defenses: Frank Mir, Shane Carwin
Notes: Lesnar at the time became the faster fighter to a UFC title.

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Frank Mir (interim)

Date: Dec. 27, 2008
Event: UFC 92
Opponent: Antonio Rodrigo Nogueira
Title defenses: None
Notes: Mir became interim champ by beating an interim champ. Then he lost a unification fight to Brock Lesmar.

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Shane Carwin (interim)

Shane Carwin

Date: March 27, 2010
Event: UFC 111
Opponent: Frank Mir
Title defenses: None
Notes: Carwin became interim champ by beating an interim champ. Then he lost a unification fight to Brock Lesmar.

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Cain Velasquez

Dec 29, 2012; Las Vegas, NV, USA; Cain Velasquez during UFC 155 at the MGM Grand Garden Arena. Mandatory Credit: Gary A. Vasquez-USA TODAY Sports

Date: Oct. 13, 2010
Event: UFC 121
Opponent: Brock Lesnar
Total reign: 385 days
Title defenses: None
Notes: Velasquez lost the belt in his first attempted defense.

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Junior Dos Santos

Mar 9, 2019; Wichita, KS, USA; Junior Dos Santos (blue gloves) defeats Derrick Lewis (red gloves) during UFC Fight Night at InTrust Arena. Mandatory Credit: Kelly Ross-USA TODAY Sports Images

Date: Nov. 12, 2011
Event: UFC on FOX 1
Opponent: Cain Velasquez
Total reign: 413 days
Title defenses: Frank Mir
Notes: JDS needed just 64 seconds to upset Velasquez to win the title.

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Cain Velasquez

May 26, 2012; Las Vegas, NV, USA; Cain Velasquez during his fight against Antonio Silva (not pictured) at the MGM Grand Garden event center. Mandatory Credit: Ron Chenoy-USA TODAY Sports

Date: Dec. 29, 2012
Event: UFC 155
Opponent: Junior Dos Santos
Total reign: 896 days
Title defenses: Antonio Silva, Junior Dos Santos
Notes: Velasquez became a two-time champion and avenged his earlier loss to JDS.

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Fabricio Werdum (interim, then undisputed)

Fabricio Werdum

Date: Nov. 15, 2014
Event: UFC 180
Opponent: Mark Hunt, Cain Velasquez
Total reign: 336 days
Title defenses: None
Notes: Werdum beat Hunt for an interim title while Velasquez was sidelined, then beat Velasquez to unify the belts at UFC 188.

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Stipe Miocic

Stipe Miocic

Date: May 14, 2016
Event: UFC 198
Opponent: Fabricio Werdum
Total reign: 784 days
Title defenses: Alistair Overeem, Junior Dos Santos, Francis Ngannou
Notes: Regarded as the greatest heavyweight of all time by virtue of more successive UFC title defenses than anyone else.

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Daniel Cormier

Jul 7, 2018; Las Vegas, NV, USA; Daniel Cormier (blue gloves) celebrates beating Stipe Miocic (red gloves) during UFC 226 at T-Mobile Arena. Mandatory Credit: Stephen R. Sylvanie-USA TODAY Sports

Date: July 7, 2018
Event: UFC 226
Opponent: Stipe Miocic
Total reign: 406 days
Title defenses: Derrick Lewis
Notes: Light heavyweight champ Cormier became the second UFC fighter to hold two titles simultaneously.

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Stipe Miocic

Stipe Miocic

Date: Aug. 17, 2019
Event: UFC 241
Opponent: Daniel Cormier
Total reign: 588 days
Title defenses: Daniel Cormier
Notes: Miocic recaptured the title from Cormier in a rematch, then beat him in a trilogy fight a year later.

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Francis Ngannou

Francis Ngannou

Date: March 27, 2021
Event: UFC 260
Opponent: Stipe Miocic
Total reign: 659 days
Title defenses: Ciryl Gane
Notes: Ngannou became the first fighter from Africa to win a UFC heavyweight title. His win over Gane was a title unification bout. He was stripped of the title in January 2023 after a contract dispute.

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Ciryl Gane (interim)

Ciryl Gane

Date: Aug. 7, 2021
Event: UFC 265
Opponent: Derrick Lewis
Title defenses: None
Notes: Lost to Francis Ngannou in a title unification bout.

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Jon Jones

Jon Jones

Date: March 4, 2023
Event: UFC 285
Opponent: Ciryl Gane
Total reign: Incumbent
Title defenses: None
Notes: Beat Gane for the title vacated when Ngannou left in a contract dispute.

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Tom Aspinall (interim)

NEW YORK, NEW YORK – NOVEMBER 11: Tom Aspinall of England reacts after his knockout victory against Sergei Pavlovich of Russia in the interim UFC heavyweight championship fight during the UFC 295 event at Madison Square Garden on November 11, 2023 in New York City. (Photo by Sarah Stier/Getty Images)

Date: Nov. 11, 2023
Event: UFC 295
Opponent: Sergei Pavlovich
Total reign: Incumbent
Title defenses: Curtis Blaydes
Notes: Won an interim title after Jones went on the shelf with surgery. In rarity, defended interim title against Blaydes.

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