Despite his recent travails, this is the one many people around the globe will be waiting for: Usain Bolt in the men’s 100m final.
Never mind the dip in form which saw training partner Yohan Blake beat him in the run-up to the Games, or the perilous possibility of his false-starting just as he did at last year’s World Championships – there can be no question that Bolt running the 100m is the most eagerly awaited of Olympic events.
Bolt runs at 21:50 BST (assuming, of course, he makes the final) on BBC One, but there is much more to that night’s athletics. Among other highlights, watch out for Christine Ohuruogu who will hope to reach the women’s 400m final as she defends her title (21:10), and Yamile Aldama in the women’s triple jump.
Plus, join BBC One at 11:00 for the women’s marathon, featuring Britain’s Paula Radcliffe.
Women’s boxing, a sport making its Olympic debut, begins at 13:30 with three excellent British medal hopes in the shape of Nicola Adams, Natasha Jonas and Savannah Marshall.
From 14:00, follow the gymnastics apparatus finals on what could be a historic day for Louis Smith. He won bronze on the pommel horse in Beijing, but can he take the gold at London 2012? Dan Purvis could also feature – and win a medal – in the floor final.
Down in Weymouth this promises to be a huge day for British interests. Both the Finn and Star classes reach their medal races, meaning this is the day on which Ben Ainslie could wrap up a fourth Olympic sailing gold medal in the former.
Look for that to start at around 14:00 while in the Star, Iain Percy and Andrew Simpson are defending their title from 09:00.
And at Wimbledon, can Andy Murray make amends for his agonising defeat by Roger Federer? The men’s singles final begins at 14:00.
GB teams in action: Basketball women v Brazil 22:15, handball women v Croatia 16:15, hockey men v Australia 19:00, volleyball women v Japan 14:45, water polo women’s quarter-finals (if qualified).