2013

Roczen in 2013 at the Muddy Creek National.

In 2013, Roczen won the Supercross 250 West Championship, ending the season 2 points ahead of Eli Tomac.

2014

In 2014, he moved up to the 450cc class, joining Red Bull KTM Racing. Ken shocked fans worldwide when he started off his rookie season with a win in his first-ever 450 Supercross race at Anaheim I, the season opener. He would also go on to win at round 5 in Atlanta's Georgia Dome. Roczen finished the series 3rd in the points standings after the final race at Las Vegas. By finishing 3rd overall in the Supercross points chase his first year on the 450, Ken showed that he was primed to become one of the sports top competitors. Roczen would cement his new position atop the 450 Motocross world by going on to win the 2014 AMA Motocross Championship his rookie year, defeating Ryan Dungey.

2015

In 2015, Roczen signed with RCH Suzuki. He failed to repeat as Pro Motocross champion for 2015, surrendering his #1 plate to Ryan Dungey. He would go on to win the 450-class Monster Energy cup.

2016

In 2016, the German was runner-up in the AMA Supercross Championship points standings with five wins. He would go on to win the AMA Motocross title for the second time in dominating fashion with 9 wins.

2017

In 2017, Roczen joined the Honda factory racing HRC Honda Racing Corporation team. After just winning his second Motocross championship he was favored to win the AMA Supercross Championship after finishing 2nd in 2016. Kenny would go on to win the first two races of the 2017 season. Then on 21 Jan 2017, while running in 3rd place Roczen's foot slipped off of the footpeg while going over a triple and he was ejected from the bike in mid-air crashing hard and receiving a compound fracture to his left arm, after landing face-first in a rhythm section of the track. Roczen would go on to miss the rest of the 2017 Supercross season and the following Motocross championship, as he had sustained serious injuries to his left arm including a compound fracture and compartment syndrome.

2018

In 2018, with his injury woes a year behind him, Roczen started the AMA Supercross Championship season in shape and ready to start his rise back to the top of the sport. He made it through much of the year, building on his progress each week and looking like he was rounding into form. Unfortunately on 10 February 2018, in San Diego, Roczen suffered another serious crash while attempting to pass Cooper Webb.^[4] As he entered a turn to set up a pass on Cooper with his back wheel spinning, he suddenly hooked a rut catching too much traction while also simultaneously impacting Cooper Webb's bike which caused him to fall off the back of the bike with his arm ending up being pulled into Cooper Webb's rear wheel and then shot back out. He underwent surgery to repair the shattered bones, dislocation of the metacarpals, and torn ligaments in his right hand. Roczen was out again for the rest of the Supercross season due to another serious injury. Luckily this gave Ken more time to allow his left arm to heal which was still damaged from the previous years crash. Roczen was able to heal just in time for the 2018 Motocross Championship in which he finished 3rd.^[5][6]

2019

In 2019, he finished 4th in the Supercross Championship with four podiums (no wins). In the Motocross Championship, he won the opener in Hangtown and two more rounds, a total of 7 podiums of the 12 rounds, finishing 2nd in the final point standings. He attended RedBull Straight Rhythm, taking away a victory in the 250cc class despite it being his first time racing a two-stroke in his pro career.

2020

In 2020, on 11 January, Ken Roczen won his first AMA Supercross race in three years with a win at St.Louis. He won two more rounds until the season was COVID-19 interrupted after round 10 in Daytona, 7 March, and was at this point trailing leader Eli Tomac by three points. The season resumed with seven rounds all in Salt Lake City, UT, between 31 May and 21 June racing Sundays and Wednesdays in Rice-Eccles Stadium without spectators. Of the seven rounds, Ken collected one more win but fell to 3rd in the final standings.

2021

Roczen in 2021 at the Washougal National.

Supercross

2021 saw Roczen battle for the Supercross championship yet again. He managed 4 wins but was a distant 2nd in the final point standings.

Motocross

Roczen finished 3rd in Motocross with 2 overall wins.

2022

Roczen won the season opener at Anaheim. After a string of poor results, Roczen decided not to race for the remainder of the AMA Supercross season due to mental and physical health reasons after a difficult start to the year.

He returned for Motocross where he won 1 overall at round 3, Thunder Valley.

He also raced the new World Supercross Championship, which he would win for Honda.

2023

Supercross

Roczen returned to Suzuki as a factory rider for the 2023 AMA Supercross season. His first win for the HEP Suzuki team would arrive at round 9, Indianapolis. ^[7] In supercross he finished 4th after a DNF in Round 17 tied him on points with Cooper Webb.

World Supercross

On May 8, it was announced that Roczen will be racing the World Supercross Championship for the next 3 years & will defend his title this year. This will put an end to his AMA Pro Motocross career. He began WSX by winning the British Grand Prix. Roczen successfully defended his SX1 WSX Title, winning the final round in Australia.

2009

At the 2009 Motocross of Nations which was held at Franciacorta, Italy. Ken Roczen represented Team Germany in the MX2 class. At just 15 years old, Roczen showcased exceptional talent and determination on the international stage. Competing against seasoned riders, he contributed significantly to Team Germany's 4th place finish with scores of 10-8 for 2nd in the MX2 classification.

2010

The 63rd version of the Motocross Des nations was held on September 26, 2010 at Thunder Valley in the USA. Roczen resumed the MX2 role, placed 6th in race one and 3rd in race two. A score of 9 granted him his first MX2 classification overall as well as a 3rd place finish for team Germany.

2011

The 2011 Motocross of nations in Saint-Jean-d'Angély, France, was Roczens’ third consecutive appearance. Roczen was yet again the class of the field in MX2 and secured another overall classification. Germany finished 7th.

2012

The 2012 Motocross of Nations was held in Lommel, Belgium. Roczen along with Max Nagl & Marcus Schiffer, led Team Germany to their first win at this event. Kenny placed 5th in moto one and 4th in moto two, once again granting him the MX2 overall. ^[8] Their victory marked the first German win in the history of the Motocross des Nations.^[8]

2013

Roczen at the 2013 Motocross Des Nations

Coming in as the defending champions, Roczen represented team Germany on home soil in Teutschenthal, Germany. He once again raced in the MX2 class. He finished 2nd in race one and 1st in race two which granted him the MX2 overall classification for the fourth year in a row. Team Germany finished 7th.

2018

Roczen returned to Des nations for the first time since 2013. The event was held at Red Bud MX in Buchanan, MI. Kenny placed 25th in race one and ninth in race three. This placed him 5th in the MXGP classification and team Germany 9th overall with 70 points.

2023

The 2023 edition of the Motocross Des nations was held in Ernee, France. This was Kenny’s first Des nations since 2018 and his first European one since 2013. Roczen proved his world-class ability on a bike by finishing 3rd in moto one and 2nd in moto two. This granted him the MXGP class overall classification as well as a 4th place finish for team Germany.