Beck was born in South Africa and moved to Australia at the age of seven. He turned professional in 2004. He won the PGA Tour of Australasia's qualifying school in 2004 and played on the PGA Tour of Australasia in 2005 and 2007. He won the Queensland PGA Championship in 2006 and 2008 in Australia. Beck joined the Asian Tour in 2008 after going through qualifying school in 2007. He finished in 29th on the Order of Merit in his rookie season and recorded a runner-up finish at the Hero Honda Indian Open. He won his first tour event in 2009 at the Brunei Open in dramatic fashion. Beck was six strokes off the lead going into the final round and shot a 65 (−6) on Sunday to force a playoff. Beck won the tournament on the third playoff hole when he sunk a 10-foot birdie putt.
In 2017, Darren finished 3rd at the Northern Territory PGA Championship and a T5 at the TX Civil & Logistics WA PGA Championship.
- Turned professional in 2004
- Graduated from Qualifying school in 2004.
- Queensland PGA Champion 2006 and 2008