At the 2006 Fürth German Open Einsle won against Fergal O'Brien and Stephen Lee and lost only 2–3 in the quarter-finals to the eventual finalist Barry Hawkins.

Einsle turned professional in 2006–07, after receiving a Main Tour wildcard from the WPBSA following the withdrawal of Paul Hunter.

Einsle had his first qualification match on the Main Tour only three days after his appeal, he lost in the qualifying round of the Northern Ireland Trophy clearly with 0–5 against Lee Page.

On 1 November 2009 Einsle defeated Itaro Santos, his friend and training partner, 4–2 in the final of the German Championship, held in Bad Wildungen, to win the title for the first time.

[2] He achieved first success in the third event of the Players Tour Championship, when he defeated Jimmy Robertson and former world champion Peter Ebdon, before losing in round 3.

[5] Einsle didn't enter a single event after the Gdynia Open in February 2014 and eventually resigned from the main tour once again.