Sarah Healy gained her first international experience in 2017 when she won the gold medal in the 1500 meter run at the European Youth Olympic Festival (EYOF) in Győr in 4: 19.85 minutes . The following year, she won the U18 European Championships there in 4: 18.71 minutes over 1500 meters and in 9: 18.05 minutes in the 3000 meter run . In 2019 she took part in the U20 European Championships in Borås , Sweden, over 1500 meters , where she won the silver medal in 4: 27.14 minutes.
In 2019 Healy became Irish champion in the 1500 meter run and in 2018 indoor champion over 3000 meters.
Personal best
1500 meters: 4: 09.25 min, June 16, 2018 in Tübingen
1500 meters (hall): 4: 16.03 min, February 4, 2018 in Abbotstown