ONE THIRD of the Republic's adult population watched Michelle Smith win her third Olympic Gold Medal.
The figures, compiled by the Media Bureau, which produces figures for advertisers, do not account for people watching the event in pubs.
The research also shows that over a quarter of all viewers watched Francis Barrett win his first boxing bout an hour later.
The bureau predicts viewing figures could reach 50 per cent of the adult population for races involving Sonia O'Sullivan.
The figures were released as congratulations flooded in to Michelle Smith.
The US ambassador, Mrs Jean Kennedy Smith, said: "On behalf of all Americans, I would like to congratulate Michelle Smith on her dedication and determination which have made her a wonderful role model for all young athletes in Ireland and around the world".
The ambassador said she was "looking forward to joining in the wonderfully warm welcome she will receive on her return to Ireland after the Games".
The National Youth Council of Ireland described Michelle Smith as "a great example to all young Irish people". The council said it was looking forward to her returning home and "giving her the welcome she deserves".
South Dublin County Council told Ms Smith: "Your performances and your achievements to date have lifted the spirits of a nation which were beginning to flag following the events of recent weeks."
The Lord Mayor of Dublin, Mr Brendan Lynch, sent a message of congratulations on behalf of the people of Dublin to her.
He said: "Are there more to come? Congratulations to you and our very best wishes to all the Smith family, enjoying the glory in Atlanta.
