That year he threw beyond seventy metres for the first time and represented his country at the 2010 World Junior Championships in Athletics, where he finished in ninth place.

He cleared eighty metres for the first time at a meeting in Sankt Wendel, getting a mark of 80.79 m (265 ft 1⁄2 in), which ranked him 54th in the world that year.

On his senior debut for Germany, he placed 13th in javelin qualifying, equalling the mark of finalist Gabriel Wallin, but missing out due to having a shorter second throw.

[5] Röhler was chosen to compete for Germany at the 2013 World Championships in Athletics and on his global senior debut he did not perform well, having his worst competition of the year and failing to better 75 metres.

[10] He made regular appearances on the 2014 IAAF Diamond League circuit: he was fifth at the Prefontaine Classic and Bislett Games, then threw a best of 84.74 m (278 ft 0 in) for third at the Meeting Areva in Paris.

He improved this further at the Glasgow Grand Prix, throwing the javelin 86.99 m (285 ft 4+3⁄4 in) to take a surprise victory over reigning world champion Vítězslav Veselý.