Amber Neben of the USA took her second World Championships time trial title on Tuesday, eight years after first wearing the rainbow jersey of world champion.
Neben, 41, put in a perfectly-timed performance on the pan-flat 28.9km course in Doha, Qatar, on Tuesday to clock 36 minutes and 37 seconds and post an average speed of 47.35km/h.
Neben added the 2016 title to that she won in 2008, and is the second oldest women's TT world champion in history after Jeannie Longo-Ciprelli in 2001.
Ellen van Dijk (Netherlands) came home in second place, six seconds down on Neben with Katrin Garfoot (Australia) completing the podium in the bronze medal position.
One of the pre-race favourites, Olympic road race champion Anna van der Breggen appeared to be among those who found the hot, dry conditions testing. Runner-up last year in Richmond, van der Breggen finished in 13th place.
Britain's highest finisher was Hannah Barnes, who had posted an early fast time to occupy the hot seat for an extended spell. She eventually finished in 14th spot. British national champion Hayley Simmonds placed 25th, 3-47 down on Neben.
Neben gave the USA its second win of the day after Brandon McNulty convincingly won the junior men's event run over the same course as the elite women's earlier in the day. McNulty posted a time of 34-42.
Mikkel Bjerg of Denmark took the junior men's silver medal, 35 seconds behind McNulty, with Ian Garrison of the USA in third. Great Britain did not enter any riders into the category.
The 2016 UCI Road World Championships continues on Wednesday with the elite men's individual time trial.
Elite women's individual time trial
1. Amber Neben (USA) in 36-37
2. Ellen van Dijk (Netherlands) at 6 secs
3. Katrin Garfoot (Australia) at 8 secs
4. Olga Zabelinskaya (Russia) at 11 secs
5. Annemiek van Vleuten (Netherlands) at 25 secs
6. Lisa Brennauer (Germany) at 57 secs
7. Trixi Worrack (Germany) at 1-11
8. Ann-Sophie Duyck (Belgium) at 1-28
9. Katarzyna Pawlowska (Poland) at 1-36
10. Alena Amialiusik (Belarus) at 1-41
14. Hannah Barnes (Great Britain) at 2-23
25. Hayley Simmonds (Great Britain) at 3-47
28. Anna Turvey (Ireland) at 4-15
Junior men's individual time trial
1. Brandon McNulty (USA) in 34-42
2. Mikkel Bjerg (Denmark) at 35 secs
3. Ian Garrison (USA) at 53 secs
4. Julius Johansen (Denmark) at 1-03
5. Ruben Apers (Belgium) at 1-24
6. Iver Knotten (Norway) at 1-33
7. Awet Habtom (Eritrea) at 1-40
8. Marc Mirschi (Switzerland) at 1-44
9. Jaka Primozic (Slovenia) at 1-54
10. Jamo Mobach (Netherlands) at 2-01
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