2019: USL Championship: Started 11 of 16 appearances (1028 minutes).
Before USL: Allach joined Lierse SK’s Under-19 side in 2013 from JMG Academie in Belgium, before being promoted to the senior side in 2014 at the age of 16. He made his professional debut for Lierse on March 29, 2014 in a Jupiler Pro League Playoff II matchup against Waasland-Beveren before making his league debut on August 9, 2015 in a 1-1 draw against KVV Coxyde in the Proximus League, Belgium’s second division. Allach went on to make 56 appearances for Lierse in all competitions, tallying two goals and three assists from midfield.
International: Allach has represented Morocco at the Under-20 level in the past, making his debut in 2015 at the age of 17.