He was a member of the Ireland team that won the bronze medal at the 2015 Men's EuroHockey Nations Championship.

[2][3] He was educated at Rathgar Junior School, where in 2000 he captained the boys field hockey team,[4] and at Wesley College.

Between 2011 and 2012 he attended Vrije Universiteit Amsterdam where he completed his master's in International Business Law.

[13] Together with Kyle Good, Darling was a member of the Rovers team that won the 2008 All-Ireland Club Championship and played in the 2008–09 Euro Hockey League.

[38] He also helped Ireland win Men's FIH Hockey World League tournaments in 2012[39] and 2015.

[40] Darling made his 150th senior Ireland appearance at the 2014–15 Men's FIH Hockey World League Semifinals.

[41] He was a member of the Ireland team that won the bronze medal at the 2015 Men's EuroHockey Nations Championship.