Here are twenty-four timelines that display every successful UFC and Bellator title defence in history. The vertical grey lines denote the crowning of a new champion, whilst the coloured markers let you know when a successful defence was made.

I’ll post updated timelines every six months, displaying both UFC and Bellator title defences on the same scale to help comparisons between the two.

Current champion: Stipe Miocic

Most defences: Tim Sylvia, Randy Couture + Stipe Miocic (3)

Current champion: Jon Jones

Most defences: Jon Jones (10)

Current champion: Israel Adesanya

Most defences: Anderson Silva (10)

Current champion: Kamaru Usman

Most defences: Georges St-Pierre (9)

Current champion: Khabib Nurmagomedov

Most defences: B.J. Penn, Frankie Edgar + Benson Henderson (3)

Current champion: Alex Volkanovski

Most defences: José Aldo (7)

Current champion: Henry Cejudo

Most defences: Dominick Cruz + T.J. Dillashaw (3)

Current champion: Vacant

Most defences: Demetrious Johnson (11)

Current champion: Amanda Nunes

Most defences: Cris Cyborg (2)

Current champion: Amanda Nunes

Most defences: Ronda Rousey (6)

Current champion: Valentina Shevchenko

Most defences: Valentina Shevchenko (2)

Current champion: Weili Zhang

Most defences: Joanna Jędrzejczyk (5)

Current champion: Ryan Bader

Most defences: Cole Konrad + Vitaly Minakov (1)

Current champion: Ryan Bader

Most defences: Emanuel Newton (2)

Current champion: Rafael Lovato Jr.

Most defences: Alexander Shlemenko + Rafael Carvalho (3)

Current champion: Douglas Lima

Most defences: Ben Askren (4)

Current champion: Patrício Freire

Most defences: Michael Chandler (3)

Current champion: Patrício Freire

Most defences: Patrício Freire (5)

Current champion: Vacant

Most defences: Eduardo Dantas (3)

Current champion: Cris Cyborg

Most defences: Julia Budd (3)

Current champion: Ilima-Lei Macfarlane

Most defences: Ilima-Lei Macfarlane (4)

Current champion: Vacant

Most defences: N/A