Greece's Euro 2004 football victory over Portugal was watched by an average of 12.9 million UK viewers on Sunday.
A peak of 16.5 million viewers watched Greece win 1-0 on Sunday
Shown on both BBC One and ITV1, the game was seen by more than 56% of the viewers watching TV at that time.
The BBC's coverage scooped the lion's share drawing 9.6m viewers from 1900 BST, compared to ITV1's 3.3m.
Earlier on Sunday, five million UK viewers watched Roger Federer win the men's singles final at Wimbledon on BBC One, more than 35% of the audience.
On Saturday, an average of 4.4 million viewers tuned in to watch Maria Sharapova win the ladies' singles final.
SOCCER AUDIENCES SINCE 1981
World Cup 90: England vs Germany - 26.2m (BBC One & ITV)
Euro 96: England vs Germany - 23.8m (BBC One & ITV)
World Cup 98: England vs Argentina - 23.8m (ITV)
Euro 2004: England vs Portugal - 20.7m (BBC One, unofficial figures)
Figures are match averages. Source: BBC
The Euro 2004 final was watched by a high of 16.5 million viewers, who saw Greece clinch the title 1-0.
In contrast England's final Euro 2004 game against Portugal drew a record average of 20.7m for the match on 24 June.
The figures do not include those who watched the game in pubs or clubs.
England's 1990 World Cup semi-final defeat against Germany was seen by 26.2m - split between BBC One and ITV.