The senior men's adult team is currently playing in the Leinster Senior League LSL Sunday Premier League for 2010–2011 and the Saturday Premier league.
He returned to play for Aer Lingus in the Leinster Senior League for 2 years before Billy Young (association football) brought him back into football with Athlone Town when they re entered the league for the 1969-70 League of Ireland season.
The club currently has 3 teams playing in the Leinster Senior League.
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The Leinster Senior League Senior Division is the top tier of football in the Leinster Senior League, and is part of the third tier of the Republic of Ireland football league system along with the Munster Senior League Premier Division and Ulster Senior League Senior Division.
Whelan signed for Córas Iompair Éireann who were then in the League of Ireland "B" division, in January 1974 and also played for Aer Lingus at Leinster Senior League level for some considerable time thereafter.