He played as a defender.[1] According to The Irish Times, centre back was his best position.[2]
Hegarty made his championship debut for Donegal in 1991.[1] He was a member of Donegal's 1992 All-Ireland Senior Football Championship winning team. He started at left corner back in the 1992 All-Ireland Final as Donegal defeated Dublin by a scoreline of 0–18 to 0–14. He and Tony Boyle were the least experienced of Donegal's men on the pitch that day.[1]
^ ab"Donegal ring the changes". The Irish Times. 23 May 1996. James McHugh will lead the attack with captain Noel Hegarty moving back to centre back, which many regard as his best position.
^Bonner, Declan (28 May 2020). "Champions dethroned". Donegal News. p. 55. It was mentioned to me last week that it was 25 years since Donegal dethroned Down in the preliminary round of the Ulster Championship… PJ McGowan had taken over from Brian McEniff at that stage… It's funny looking back now because we had played the League final against Derry the week before and lost… We were very poor that day and Noel Hegarty broke his nose too which was far from ideal.