UFC Fight Night 55 pre

The UFC makes its sixth venture Down Under this weekend as UFC Fight Night 55 is scheduled to go down at Allphones Arena in Sydney, Australia.

The event kicks off midday Saturday in Sydney, but for the Stateside audience the action begins Friday evening. The 11-bout card will stream in its entirety on UFC Fight Pass.

It'll be hard to live up to the expectations of the last event in Australia after Mark Hunt and Antonio Silva delivered an incredible five-round war in December, but event headliners Luke Rockhold (12-2 MMA, 2-1 UFC) and Michael Bisping (25-6 MMA, 15-6 UFC) will do their best.

A bitter rivalry has formed between the two middleweights over the past few years, and after a tremendous amount of trash talk during the pre-fight build, both men are eager to silence the other and settle the score.

Bisping's resume is among the lengthiest in the UFC, but Rockhold is quickly catching up and putting together an impressive stat sheet of his own. Check below for the numbers behind the UFC Fight Night 55 headliner as well as the other 10 contests slated for the card.

Main event

Rockhold has earned 10 of his 12 career victories by knockout or submission. All of those stoppages have come inside the first round.

Rockhold's nine first-round finishes in UFC/Strikeforce competition since the inception of the five-minute round are the most of any fighter in the combined history of the two organizations.

Rockhold has earned both of his UFC victories by first-round stoppage in a total fight time of just 4:38.

Rockhold is one of eight fighters in UFC history to earn a knockout victory stemming from a body kick. He accomplished the feat against Costas Philippou at UFC Fight Night 35.

Rockhold was the only middleweight champion in the history of the now-defunct Strikeforce organization to successfully defend his belt twice.

Rockhold's seven finishes in his Strikeforce career are tied with Cung Le for the most stoppage wins in company history.

Rockhold's seven knockdowns in Strikeforce competition are the second most in organizational history behind Le (10). His eight knockdowns overall in UFC/Strikeforce middleweight combination are tied for the fourth most in the combined history of the weight class.

Rockhold's five submission victories in Strikeforce are tied with Tim Kennedy for the most in organizational history.

Bisping will compete in his 17th UFC middleweight contest, the third most of any fighter in divisional history behind Chris Leben (22) and Yushin Okami (18). His 3:18:49 of total cage time in 185-pound competition ranks third all-time behind Okami (3:40:20) and Leben (3:18:55).

Bisping's 15 UFC victories are the most by any winner of 'The Ultimate Fighter' reality series. His 22nd UFC appearance will also mark the most of any 'TUF' winner.

Bisping's 15 UFC victories are tied with Gleison Tibau for the most of any fighter in UFC history to never compete in a championship bout.

Bisping's 11 victories in UFC middleweight competition are tied for the fourth most in divisional history behind Okami (13), Anderson Silva (13) and Leben (12).

Bisping's six finishes in UFC middleweight competition are tied for the fourth most stoppage wins in divisional history behind Silva (11), Leben (nine) and Nate Marquardt (seven).

Bisping's six knockout victories in UFC middleweight competition are the third most in divisional history behind Silva (eight) and Leben (seven).

Bisping's nine knockout victories overall in UFC competition are tied for the fourth most in company history behind Silva (11), Vitor Belfort (10) and Chuck Liddell (10).

Bisping has scored five UFC knockdowns from the clinch position, the second most in company history behind Silva (seven).

Bisping has landed 896 significant strikes in his 15 fights as a UFC middleweight, the most in divisional history. His 1,079 significant strikes landed overall during his UFC tenure are the second most in company history behind Georges St-Pierre (1,254).

Bisping is the only middleweight in UFC history to land 100 or more significant strikes in two different bouts. He accomplished the feat against Jason Miller at the TUF 14 Finale and Yoshihiro Akiyama at UFC 120.

Bisping lands 4.51 significant strikes per minute, the second highest rate among active middleweights. He averages 3.34 per minute in Round 1. The rate climbs to 5.26 in Round 2, and 5.66 in Round 3, the highest second- and third-round rates among active middleweights.

Bisping has defended 70.4 percent of all opponent significant strike attempts in UFC middleweight competition, the highest defense rate in divisional history.

Bisping has alternated wins and losses over his past seven UFC appearances.

Co-main event

Ross Pearson (16-7 MMA, 8-4 UFC) is 3-1 with one no-contest since he returned to the UFC lightweight division in December 2012.

Pearson has knocked out his opponent in all three of his victories since returning to the lightweight division.

Pearson's four knockout victories in UFC lightweight competition are tied for the fourth most in divisional history behind Melvin Guillard (seven), B.J. Penn (six) and Yves Edwards (five).

Pearson has out-landed his opponent in total strikes in all eight of his UFC victories.

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Pearson's 23.1 percent clinch striking proportion is the second highest among active UFC lightweights.

Pearson has defended 72 percent of all opponent significant strike attempts in UFC lightweight competition, the second highest defense rate in divisional history behind John Makdessi (75.5 percent).

Al Iaquinta (9-3-1 MMA, 4-2 UFC) has earned three of his four UFC victories by decision.

Iaquinta lands 4.96 strikes per minute of fighting, the highest rate among active UFC lightweights and second highest in divisional history behind T.J. Grant (6.83).

Iaquinta outlands his opponents at a +1.57 striking rate, the second highest differential among active UFC lightweights behind Ramsey Nijem (+1.84).

Iaquinta is one of 12 fighters in UFC history to earn a knockout stemming from a standing elbow strike. He accomplished the feat against Rodrigo Damm at UFC Fight Night 50.

Remaining main card

Robert Whittaker (12-4 MMA, 3-2 UFC) moves up to the UFC middleweight division for the first time in his career. His previous four UFC bouts took place at welterweight.

Whittaker's takedown defense rate of 90.5 percent during his UFC welterweight career is the second highest in divisional history behind Tyron Woodley (95 percent).

Clint Hester 's (11-3 MMA, 4-0 UFC) four-fight UFC winning streak is tied for the third longest active streak in the middleweight division behind Chris Weidman (eight) and Yoel Romero (five).

Hester has earned all four of his UFC victories by a different method (knockout, doctor stoppage, unanimous decision, split decision).

Hester is one of 12 fighters in UFC history to earn a knockout stemming from a standing elbow strike. He accomplished the feat against Bristol Marunde at the TUF 17 Finale.

Soa Palelei (21-4 MMA, 3-2 UFC) has earned all 21 of his professional victories by knockout or submission. 'The Hulk' has recorded his past 11 victories by knockout.

Palelei has recorded three UFC finishes via strikes from mount position. That's tied with Evan Tanner, Matt Lindland, and Diego Sanchez for the most such finishes from the position in company history.

Walt Harris (7-3 MMA, 0-2 UFC) returns to the UFC for a second stint after being released in March. He had just one fight outside the organization, as he defeated D.J. Linderman by knockout at Titan FC 28.

Preliminary card

Jake Matthews (7-0 MMA, 1-0 UFC), 19, is the youngest active male fighter on the UFC roster. He's the youngest of the 22 fighters scheduled to compete at the event.

Matthews became the youngest fighter to record a submission victory under the UFC banner when he defeated Dashon Johnson in his promotional debut at UFC Fight Night 43.

Vagner Rocha (11-3 MMA, 1-2 UFC) returns to the UFC for the first time since February 2012. He went 1-2 in his first stint with the organization and registered a four-fight winning streak to earn a return.

Anthony Perosh (14-8 MMA, 4-5 UFC) has earned all of his career victories by submission (nine) or knockout (five).

Perosh, 42, is the oldest of the 22 fighters scheduled to compete on the card. He is also the second oldest active fighter on the UFC roster behind Dan Henderson (44).

Perosh is one of five 40-plus year old fighters in UFC history to earn a victory inside the octagon. Henderson, Cung Le, Mark Coleman and Randy Couture are the others to accomplish the feat.

Perosh's 14-second knockout of Vinny Magalhaes at UFC 163 stands as the third fastest in UFC light heavyweight history. Only Ryan Jimmo at UFC 149 and James Irvin UFC Fight Night 13 scored faster knockouts.

Perosh's attempts 1.9 submissions per 15 minutes of fighting, the highest rate of any active light heavyweight.

Perosh's average fight time of 5:12 is the shortest among active UFC light heavyweights.

Guto Inocente (6-3 MMA, 0-1 UFC) drops to the UFC light heavyweight division after he suffered a knockout loss to Derrick Lewis at heavyweight in his UFC debut.

Chris Clements (11-5 MMA, 1-1 UFC) returns to the UFC for the first time since September 2013. He has competed just once in the past 27 months.

Clements, 38, is the second oldest active fighter in the UFC welterweight division behind Mike Pyle (39).

Marcus Brimage (6-3 MMA, 3-2 UFC) will compete in his second UFC bantamweight contest. He was unsuccessful in his divisional debut against Russell Doane at UFC 175.

Brimage has earned all three of his UFC victories by decision.

For more on UFC Fight Night 55, check out the UFC Rumors section of the site.

FightMetric research analyst and live statistics producer Michael Carroll contributed to this story. Follow him on Twitter @MJCflipdascript.