Question:  Stipe Miocic has tied the record for most successful title defenses held with Randy Couture, Tim Sylvia, Brock Lesnar an an american mixed martial artists who is ranked what in UFC's official heavyweight rankings?

Context articles: Kim Min-soo (judoka)
Kevin Randleman
Xtreme Couture Mixed Martial Arts
Anderson Silva
UFC 102
Team Tompkins
Randy Couture
Cain Velasquez
Stipe Miocic
Demetrious Johnson (fighter)

Kim Min-soo (born January 22, 1975) is a South Korean former judoka, professional mixed martial artist and K-1 kickboxer.
 He is best known for becoming a K-1 World Grand Prix 2006 Finalist and also winning the 1996 Summer Olympics in Atlanta earning a Silver Medal in Judo.
 He is also known for his fights with current WWE professional wrestler and former UFC Heavyweight Champion and veteran Brock Lesnar, former WWE wrestler and K-1 fighter Sean O'Haire and former NFL football player turned K-1 kickboxer and New Japan Pro Wrestling contender Bob Sapp.
 Min-soo holds a notable kickboxing win over former UFC fighter Scott Junk.
 He announced his retirement from contact sports in 2011 with brief stints as color commentator for Japanese and Korean mixed martial arts and professional wrestling events.
 Kim is also the Judo head coach for Korean Top Team.
Kevin Christopher Randleman (August 10, 1971 – February 11, 2016) was an American mixed martial arts fighter and a former UFC Heavyweight Champion.
 Randleman's background was in collegiate wrestling, and he competed in the heavyweight and light heavyweight classes.
 Randleman had fought in the UFC, PRIDE, WVR, and Strikeforce.
 He was previously associated with Mark Coleman's Team Hammer House, before training at Randy Couture's gym in Las Vegas, Nevada.
Xtreme Couture Mixed Martial Arts is an American mixed martial arts training organization headed by former UFC Champion and former co-founder of Team Quest, Randy Couture.
 Xtreme Couture was founded with the flagship gym in Las Vegas.
 Since then, the franchise has spread to other cities in the United States and Canada.
 Xtreme Couture Las Vegas is one of the largest gyms (over 24000 sqft ), most recognized brands and MMA gyms in the world where many past and current top MMA fighters train.
Anderson da Silva (] ; born April 14, 1975) is a Brazilian mixed martial artist and former UFC Middleweight Champion.
 Silva holds the longest title streak in UFC history, which ended in 2013 after 2,457 days, with 16 consecutive wins and 10 title defenses.
 He has 13 post-fight bonuses, the second most in UFC history.
 UFC president Dana White and several mixed-martial-arts publications have called Silva the greatest mixed martial artist of all time.
 He is currently ranked the #6 contender in official UFC middleweight rankings.
UFC 102: Couture vs. Nogueira was a mixed martial arts pay-per-view event held by the Ultimate Fighting Championship (UFC) on August 29, 2009 at the Rose Garden in Portland, Oregon.
 It featured former five-time UFC champion and UFC Hall of Famer Randy Couture, facing off against former PRIDE FC Heavyweight Champion and former Interim UFC Heavyweight Champion, Antônio Rodrigo Nogueira.
Team Tompkins is one of the camps participating in the International Fight League.
 Coached by former UFC Heavyweight and Light Heavyweight Champion Randy Couture, Team Tompkins took the place of Team Xtreme Couture after a lawsuit from the UFC prevented former UFC Heavyweight champion Randy Couture from having any association with other MMA events while still technically under his UFC contract.
Randall "Randy" Duane Couture ( ; born June 22, 1963) is an American actor, retired United States Army Sergeant, retired mixed martial artist and former collegiate and Greco-Roman wrestler.
 During his tenures in the Ultimate Fighting Championship (UFC), Couture became a three-time UFC Heavyweight Champion, two-time UFC Light Heavyweight Champion, an interim UFC Light Heavyweight Champion and the UFC 13 Heavyweight Tournament Winner.
 Couture is the first of only three fighters to hold two UFC championship titles in two different divisions (along with B.J. Penn and Conor McGregor).
Cain Velasquez (born July 28, 1982) is an American mixed martial artist.
 He is a former two-time UFC Heavyweight Champion, with victories over Brock Lesnar and Junior dos Santos.
 As of September 28 2017, he is the 3rd ranked heavyweight in the UFC's official rankings.
Stipe Miocic ( ; born August 19, 1982) is an American professional mixed martial artist currently competing in the Ultimate Fighting Championship (UFC).
 He is the reigning, defending UFC Heavyweight Champion.
 As of September 2017, he is ranked #3 pound-for-pound in the UFC.
 Miocic has defended the belt twice, and by doing so has tied the record for most successful title defenses held with Randy Couture, Tim Sylvia, Brock Lesnar, and Cain Velasquez.
Demetrious Khrisna Johnson (born August 13, 1986) is an American mixed martial artist.
 He is the first ever and the current Flyweight Champion of the Ultimate Fighting Championship (UFC).
 He currently holds the longest active championship reign at ten title defenses.
 He is also the #1 ranked pound for pound MMA fighter in the world.
 Known for his quick striking and elusive movement, Johnson has also landed the most takedowns in UFC Flyweight history and holds the record for the latest finish in UFC history with a submission win at 4:59 of the fifth round against Kyoji Horiguchi.
 He is also the only UFC fighter to record over 10 takedowns in three different fights.