Some records and rarities from the UFC's first 20 years...
Events to date – 250
Fights – 2,474
Fighters – 1,147
Champions – 59
Rounds – 5,270
Time – 23,473 minutes, 38 second (or 391 hours, 13 minutes, 1 second)
Knockouts – 833
Submissions – 644
Decisions – 964
Other results – 31
Weight classes (all-time) – 16
Weight classes (current) – 9
500th Fight – Jon Fitch vs. Brock Larson – Fight Night 2, Oct. 3, 2005
1,000th Fight – Jim Miller vs. David Baron – UFC 89, Oct. 18, 2008
2,000th Fight – Hacran Dias vs. Iuri Alcantara – UFC 147, June 23, 2012
100th event – UFC 78, Nov. 17, 2007
200th event – UFC on FX 2, Mar. 3, 2012
10,000th minute of fight time – During UFC 102, Aug. 29, 2009
20,000th minute of fight time – During UFC on FX 6, Dec. 14, 2012
EVENT RECORDS
Longest event – UFC on FUEL TV 7 – 168 minutes, 39 seconds
Shortest event – UFC 1 - 13 minutes, 25 seconds
Most fights at single event – 15 – UFC 2
Fewest fights at single event – 6 – UFC 37.5
Event with most finishes – 10 – UFC Fight Night 13 –and- UFC on FUEL TV 10
Event with most knockouts – 8 – UFC on FOX 7 –and- UFC 92
Event with most submissions – 8 – UFC on FUEL TV 10
Event with fewest finishes – 2 – UFC 161 (9 decisions) –and- UFC 94 (8 decisions)
INDIVIDUAL RECORDS - Career
Most wins – 18 – Georges St-Pierre and Matt Hughes
Most knockouts – Anderson Silva, 11
Most submissions – Royce Gracie, 11
Most total finishes – Anderson Silva, 14
Most knockdowns – Anderson Silva, 17
Most strikes landed – Georges St-Pierre, 2,398
Highest striking accuracy – Anderson Silva, 67.45%
Most takedowns landed – Georges St-Pierre, 84
Highest takedown accuracy – Georges St-Pierre, 75.0%
Highest takedown defense – Jon Jones, 95.8%
Consecutive knockouts – Chuck Liddell, 7
Consecutive first-round knockouts – Shane Carwin, 4
Most submission attempts – Chris Lytle, 31
Highest submission accuracy – Kenny Florian, 53.85%
Consecutive wins – Anderson Silva, 16
Consecutive finishes – Anderson Silva, 8
Consecutive first-round finishes – Shane Carwin/Matt Hughes/Mike Swick, 4
Consecutive submissions – Royce Gracie, 11
INDIVIDUAL RECORDS – Single Fight
Quickest knockout – Duane Ludwig, 6.0 seconds at UFC Fight Night 3
Quickest submission – Oleg Taktarov, 9.0 seconds at UFC 6
Latest knockout (3-round) – John Howard, 4:55 R3 at the TUF 10 Finale
Latest submission (3-round) – Cole Miller, 4:48 R3 at UFC 86
Most strikes landed – Royce Gracie, 355 at UFC 5
Most takedowns landed – Khabib Nurmagomedov, 21 at UFC 160
Most submission attempts – Cole Miller, 10 at UFC Fight Night 11
Most knockdowns – Forrest Petz, 5 at UFC Fight Night 6
Biggest comeback (total strikes) – Anderson Silva (64 strikes) vs. Chael Sonnen (320 strikes) at UFC 117
PHYSICAL RECORDS
Largest height discrepancy – Stefan Struve (84”) vs. Pat Barry (71”) at UFC on Versus 6, a 13” difference
Largest age discrepancy – Royce Gracie vs. Ron Van Clief at UFC 5, a 24 year difference
Largest weight discrepancy – Keith Hackney vs . Emmanuel Yarbrough, 416 pounds
Tallest – Stefan Struve, 84”
Shortest – Jessica Andrade, John Lineker, and Phil Johns at 62”
Longest reach – Jon Jones and Stefan Struve, 84.5”
Shortest reach – Antonio Banuelos and Issei Tamura, 63”
Oldest – Ron Van Clief, 51 years old
Youngest – Dan Lauzon, 18 years, 7 months, 14 days
FIRSTS
First Fight – Gerard Gordeau vs. Teila Tuli at UFC 1
First knockout – Gerard Gordeau over Teila Tuli, UFC 1 (kick to head on ground)
First submission – Royce Gracie over Art Jimmerson, UFC 1 (mount position)
Tournament championship fight – Royce Gracie over Gerard Gordeau, UFC 1 (rear-naked choke)
Weight class title fight – Jerry Bohlander over Nick Sanzo, UFC 12 Lightweight Tournament Title
First heavyweight fight – Justin Martin vs. Eric Martin, UFC 12 (200+ lbs.)
First 205 lbs. fight – Matt Lindland vs. Ricardo Almeida, UFC 31
First 185 lbs. fight – Mark Hughes vs. Alex Stiebling, UFC 28
First 170 lbs. fight – Laverne Clark vs. Josh Stewart, UFC 16
First 155 lbs. fight – Jens Pulver vs. Joao Roque, UFC 26
First 145 lbs. fight – Pablo Garza vs. Fredson Paixao, TUF 12 Finale
First 135 lbs. fight – Nick Pace vs. Will Campuzano, TUF 12 Finale
First 125 lbs. fight – Ian McCall vs. Demetrious Johnson, UFC on FX 2
First women’s 135 lbs. fight – Ronda Rousey vs. Liz Carmouche, UFC 157
LASTS
Last fighter to wear shoes – Mark Robinson, UFC 30
Last bare knuckle fight – Randy Couture vs. Steven Graham, UFC 13
Last legal headbutt – Mark Coleman, vs. Maurice Smith at UFC 14
Last fight without a time limit – Royce Gracie vs. Dan Severn, UFC 4
Last legal groin shot – Kazuo Takahashi, vs. Wallid Ismail at UFC 12
Last fighter to wear a gi – Frank Carraci, vs. Laverne Clark at UFC 18
Last legal knees to the head of a downed fighter – Mark Kerr, vs. Moti Horenstein at UFC 14
Last UFC event without weight classes – Ultimate Ultimate ‘96
Last one-night tournament – UFC 23: Ultimate Japan 2
ODDITIES and RARITIES
First head kick knockout – Gerard Gordeau over Teila Tuli, UFC 1
First wheel kick knockout – Edson Barboza over Terry Etim, UFC 142
Double-knockouts – 1: Gray Maynard vs. Rob Emerson at TUF 5 Finale
Spinning backfist knockouts – 2: Shonie Carter (UFC 31) and John Makdessi (UFC 129)
Spinning back kick knockouts – 3: Renan Barao (UFC 165), Dennis Siver (UFC 93), David Loiseau (UFC 53)
Upkick knockouts: 1, Jon Fitch at UFC Fight Night 5
One-time Submissions:
Frank Mir Toe Hold UFC 41
Kenny Robertson "Suloev Stretch" UFC 157
Chan Sung Jung Twister UFN 24
Charles Oliveira Calf Slicer Fox 2
CB Dollaway Peruvian Necktie UFN 14
Jason Von Flue Von Flue Choke UFN 3
Pablo Garza Flying Triangle UFC 129
Nick Pace Pace/Pillory Choke TUF 12
Super heavyweight bouts – 1, Josh Barnett vs. Gan McGee at UFC 28
Most strikes absorbed in a fight without being knocked out – Anderson Silva, 320 strikes at UFC 117
Slam takedowns Landed – Karo Parisyan, 15 (of 53 career takedowns)
Most leg kicks landed in a single fight – Carlos Condit, 68 at UFC 143
Source: FightMetric