Widely expected to contend in Saturday's 4x400m relay final, Felix would break Carl Lewis's American medal record if she reaches the podium yet again at her fifth and final Games, a prospect Lewis appeared to welcome.
Allyson Felix completed a hat-trick of women's 200 metres world titles on Friday but fellow American Jeremy Wariner's bid to match her in the men's 400 failed when he lost again to compatriot LaShawn Merritt.
Michael Phelps and Allyson Felix were named as the United States Olympic Committee's (USOC) best athletes for 2011-12 on Monday for their gold-medal performances at the London Olympics.
Allyson Felix finally won an individual Olympic gold medal, gliding home with her seemingly effortless stride to take the 200-meters title and break Veronica Campbell-Brown's stranglehold on the event.
Allyson Felix became the first woman to collect five athletics gold medals.
Olympic 200 metres gold medallist Allyson Felix has chosen to run the 400 metres at next month's world championships, her coach told Reuters on Wednesday.
The crackdown on athletes caught up in recent doping scandals is a step in the right direction for the sport, Allyson Felix says, but the American sprinter is still worried it will not be a level playing field at next month's Rio Olympics.
Peruvian Kimberly Garcia Leon won the first gold medal of the World Championships on Friday in the 20 kilometres race walk in a time of 1:26:58 seconds, with Poland's Katarzyna Zdzieblo claiming silver and China's Qieyang Shijie taking bronze.
The disappointment of missing out on an individual Olympic double has not left Allyson Felix, but the world 400 metres champion could still win three gold medals at the Rio Games.
The United States won the Olympic women's 4x400 meters relay gold medal on Saturday in 3 minutes 19.06 seconds, their sixth straight victory in the event at the Games.
Dramatic scenes from Track and Field at the Tokyo Olympics.
World champion Dafne Schippers proved she will be the sprinter to beat over 200 metres at next year's Rio Games with victory over Olympic champion Allyson Felix at the Diamond League athletics finale in Brussels on Friday.
Usain Bolt won his third gold medal of the 14th IAAF World Championships on Sunday when he led Jamaica to the gold in the 4 x100 metres relay.
Bahamian Shaunae Miller launched herself over the finishing line with a desperate dive to pip Allyson Felix to the women's Olympic 400 metres gold medal by the narrowest of margins on Monday.
Veronica Campbell-Brown scorched to victory in the Olympic 200 metres on Thursday to retain her title and complete a Jamaican sweep of all four men and women's sprint titles at the Games.
Usain Bolt, already enshrined as one of the greatest Olympians of all time, became the most successful athlete in world championship history when he anchored Jamaica to victory in the 4x100 metres relay on Sunday.
Analysis of track events in women's athletics programme.
Jamaican Usain Bolt beat United States hurdler Aries Merritt and Kenyan runner David Rudisha to clinch the IAAF World Athlete of the Year award for the fourth time.
An experienced athletics team featuring seven current world champions and a host of medals favourites will represent the United States in next month's Beijing Olympics, USA Track & Field announced on Monday. The 126-member squad includes Athens 2004 Olympic gold medallists Jeremy Wariner (400m) and Shawn Crawford (200m), double world champions Tyson Gay and Bernard Lagat.
Track and field world champion Tyson Gay and swimmer Katie Hoff have been named the US Olympic Committee (USOC) sportsman and sportswoman of 2007, the organisation announced on Thursday. The USOC also named wheelchair track and field athlete Jessica Galli its Paralympian of the year and the US women's world championships gymnastics squad its team of the year.
Sydney McLaughlin broke the women's 400 metres hurdles world record with a time of 51.90 seconds in the final of the US Olympic athletics trials on Sunday.
Pointing the baton at the clock showing the world-record time of 40.82 seconds, Carmelita Jeter anchored the United States on Friday night to its first Olympic gold medal in the women's 4x100-metre relay since 1996.
The United States made up for their botched performance in the sprint relays by winning both 4x400 meters events on Saturday to finish the Olympic athletics program on a high.
The United States held off Jamaica in a thrilling finish to win the women's 4x100 metres relay at the world championships on Saturday.
Allyson Felix is honing in on her quest for a rare shot at gold in both the 200 and 400 metres at the Rio Olympics, tailoring her training to simulate the stress of her bid and leaning some who have achieved the feat.
New Zealand's Valerie Adams became the first woman to win four successive world titles when she secured shot put gold on Monday.
Summary of sports events and persons who made news on Friday
On a night when American Allyson Felix also became the most decorated track and field athlete in Olympic history and Dutchwoman Sifan Hassan's dream of an unprecedented Games treble disappeared, Uganda's Joshua Cheptegei wiped away his 10,000 metres disappointment with an impressive 5,000m win.
The athletes on the US magazine's list have enjoyed sporting success as well as promoting other causes.
A summary of Saturday's Track and Field action at the Tokyo Olympics.
Throughout the five days of programming across multiple time zones, the lineup will showcase a variety of 'interactive online experiences that guests can book on Airbnb'.
Jamaica's twice 200 metres Olympic champion Veronica Campbell-Brown has escaped with a public warning by the Jamaica Athletics Administration Association for her use of a banned substance.
Poland scored an upset win in the inaugural Olympic 4x400 metres mixed relay on Saturday, with Dominican Republic picking up silver and the United States taking bronze.
A summary of Thursday's events at the World Athletics Championships.
Los Angeles, bidding to host the summer Games for a third time after 1932 and 1984, was seen as the front-runner in the race with Paris and Budapest until Trump's election this month.
Yes, people, it's Fab Friday as the Felix, Farah and Bolt show beckons! Usain Bolt starts his quest for a second world track gold in Moscow but American sprinting great Allyson Felix looks set to steal the limelight as she goes for a fourth world 200 metres title on Friday.
Part of Sebastian Coe's new job as head of world athletics will be to shift the conversation about his "ostensibly clean" sport from doping to spectacular performances, he said on Sunday.
Olympic champion Mo Farah won his second gold medal at the World Athletics Championships when he triumphed in the 5000 metres in Moscow, on Friday.