Although he began playing in 1985, Durrant's first major appearance was in the 2004 Winmau World Masters, where he lost out in the early stages to Dietmar Burger.

Four consecutive wins and losing only three legs put him into the televised stages of the tournament where he defeated Craig Baxter 3–2 in sets in the last 24.

[6] Durrant came within one match of qualifying for the World Championship in 2012, but was beaten in the final round by Alan Norris who went on to reach the quarter-finals.

At the same tournament he "did the double" by winning the pairs competition with his playing partner Tony Eccles and also was runner up in the inaugural EDO England Matchplay.

Durrant then lost to Mitchell in the final of the Jersey Open, televised on Eurosport, having led 5–3 in a race to six and missed three match darts.

Durrant's reached the last four of the 2015 World Championship, maintaining a 90+ average in each of his first three wins over Karel Sedláček, Jamie Hughes and Darryl Fitton.

His second major BDO title came in December when he won the 2015 Zuiderduin Masters, beating Martin Adams 5–2 in sets in the final and averaging 100.69.

[9] Durrant entered the 2016 World Championship as the favourite to win the tournament, and won his first two matches without dropping a set, defeating Dean Reynolds and Larry Butler.

Durrant entered the 2017 BDO World Darts Championship as the number 1 seed and won the tournament for the first time, beating Danny Noppert in the final 7–3.

Durrant had a pressure filled tournament, and contacted his mind coach Stephen McKibben after a near miss against Paul Hogan.

On 21 January 2019, Durrant survived match darts from Matthew Dennant before going on to reach the last 32 and seal his two-year PDC Tour Card via the UK Q-School Order of Merit.

The following week, Durrant would claim his first PDC title in just his fourth Pro Tour event, dispatching Dimitri Van den Bergh 8–3 in the final.

On 18 May 2019, Durrant clinched his second PDC title at Players Championship 15 after a series of impressive performances on the day, beating Darius Labanauskas 8–1 in the final, having already dismissed World number 1 Michael van Gerwen 7–2 in the semi-final.

At the World Matchplay in July, Durrant advanced to the semi-finals, a run which included wins over Adrian Lewis, van Gerwen and James Wade.

In October 2020, Durrant won the 2020 Premier League on his debut appearance in the tournament, beating Nathan Aspinall in the final after surviving four match darts against Anderson in the semis.