[3][2][4][5][6][7][8][9] After taking up field hockey at age 7, McFerran began representing Larne Grammar School as a Year 8 pupil in 2008.

[2][5][8][9][17] While based in Louisville, Kentucky, McFerran also worked as a goalkeeper coach at a local field hockey club, IFHCK.

[7][8][9][11][12] In March 2015 McFerran was a member of the Ireland team that won a 2014–15 Women's FIH Hockey World League Round 2 tournament hosted in Dublin, defeating Canada in the final after a penalty shoot-out.

[8][9][17][21][22] She was also a member of the Ireland team that won the 2015 Women's EuroHockey Championship II, defeating the Czech Republic 5–0 in the final.

[23] In January 2017 she was also a member of the Ireland team that won a 2016–17 Women's FIH Hockey World League Round 2 tournament in Kuala Lumpur, defeating Malaysia 3–0 in the final.

[24] McFerran represented Ireland at the 2018 Women's Hockey World Cup and was a prominent member of the team that won the silver medal.