Competition climbing

Hojer started participating in German Lead climbing youth competitions in 2004, at the age of 10. From 2008 to 2010 he participated in the Lead Climbing World Cup. Since his performances in lead climbing were never outstanding, he quit competing in that discipline in 2011 and started competing in bouldering. Notable results started coming next year, when he ranked fifth in the Climbing World Championships. He won the seasonal title of the Bouldering Climbing World Cup in 2014 and finished second in 2015.^[1]

In 2015 and 2017 he won the Climbing European Championships in Bouldering.^[1] Also in 2017, he won the silver medal at the Bouldering World Games in Wroclaw, Poland.

Hojer has won national championships in all climbing disciplines. He won the lead in 2008, 2017, and 2019. In bouldering he won in 2011, 2014, 2015, and 2016, finished second in 2017, and has not competed since. Hojer won the first German National Championship in the combined format in 2018, and in 2019 he won the only discipline that he hadn't won yet, speed.

In 2019 Hojer qualified for the 2020 Summer Olympics through his performance at the IFSC Combined Qualifier event in Toulouse.^[2] Hojer finished 12th out of 20 at the Tokyo Olympics.

Rock climbing

He also obtained outstanding results in outdoor climbing. In May 2010, he redpointed the sport climbing route, Action Directe, still considered to be one of the most difficult routes in the world.^[3] From 2013 to 2015, he sent several outdoor bouldering problems at the grade of 8C (V15). In 2018, he made the third ascent of the deep-water soloing route, Es Pontàs at 9a+ (5.15a).

Climbing World Cup^[4]

Climbing World Championships^[1]

Climbing European Championships^[1]

Bouldering^[1]

Redpointed routes

9a+ (5.15a):

• Es Pontàs - Mallorca (ESP) - October, 2018

9a (5.14d):

• Action Directe - Frankenjura (DEU)- May 22, 2010

8c+ (5.14c):

• Pati noso - Siurana (ESP) - April 27, 2011
• Bah Bah Black Sheep - Céüse (FRA) - July 22, 2010

Boulder problems

8C (V15):

• Quoi de Neuf - Fontainebleau (FRA) - November 21, 2017^[5]
• From Dirt Grows the Flowers - Chironico (CHE) - March 8, 2015
• The Story of Two Worlds - Cresciano (CHE) - April 11, 2014^[6]
• Le Marathon de Boissy - Fontainebleau (FRA) - March 2014 - First ascent.^[7]
• Trip Hop - Fontainebleau (FRA) - October 2013
• The Big Island - Fontainebleau (FRA) - January 2013.^[8]

8B+ (V14):

• Jour de Chasse - Fontainebleau (FRA) - December 2013 - First ascent. Hojer graded it a soft 8C, possibly because he did not use a heel hook that, according to some repeaters, makes it easier to climb.^[9]
• Dreamtime - Cresciano (CHE) - February 18, 2013. Rated 8C by Hojer, who described it as "much harder than any 8B+ i've ever tried.."^[10]