Sarah Hammer

America's most successful track cyclist Sarah Hammer retires from professional racing. She has four Olympic silver medals to her credit.

Sarah Hammer rides to her 15th career world championship medal in points race behind Britain's Elinor Barker.

Great Britain's Laura Trott repeats as gold medalist in the women's track omnium, and American Sarah Hammer earns another silver in Rio.

The American track program was revamped for the Rio Games, with the team pursuit squad winning the 2015 world title.

A young American team of Sarah Hammer, Jennifer Valente, Chloe Dygert, and Kelly Catlin breaks U.S. team pursuit record at worlds.

The 31-year-old wins the first ever U.S. World Cup medal in the men's omnium

American Sarah Hammer took a second consecutive omnium title at the world track championships

Hammer wins second title of 2013 track worlds on the event's closing day

American rides to within one world title of the all-time IP record

American is one win behind compatriot Rebecca Twigg and Russian Tamara Garkuchina for the IP record

Hammer narrowly misses out on track gold

Trott, Hammer locked in tight race for the first women's Olympic omnium title

The track events open Thursday in London and we preview all 10, with a look at the key match-ups

The Americans practiced on the London track on Tuesday

With the individual pursuit gone, the best chance for a U.S. medal falls on Sarah Hammer in the team pursuit and the omnium

Hammer outlines where she thinks she can improve between now and London

World individual pursuit record holder Sarah Hammer assesses the current state of Olympic track cycling and the U.S. women's team pursuit performance at worlds

After medal disappointment, riders and staff look for answers four months out from London

Great Britain sets new mark in team pursuit, but Meares leaves no doubt in sprint qualifying. All this before a 34-year-old becomes a four-time kilo champ

American Sarah Hammer won a pair of medals last week during the second round of the UCI Track World Cup in Cali, Colombia.

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Sarah Hammer is the first American woman to earn three medals in a single cycling world championship after finishing second in the women’s omnium at the UCI track world championships.

APELDOORN, Netherlands (AFP) ─ France's Gregory Bauge won the world sprint title after beating Britain's Jason Kenny 2-0 in the final of the blue riband event of the world track cycling championships Friday.

APELDOORN, Netherlands (AFP) - American Sarah Hammer launched a stunning fighback to defend her 3km pursuit title against New Zealand's Alison Shanks at the world track cycling championships Friday.

APELDOORN, Netherlands, March 24, 2011 (AFP) — Britain won the women's team pursuit gold medal after dominating the United States in the final at the world track cycling championships on Thursday.

Sarah Hammer of the United States wins the women’s omnium at the UCI World Cup track cycling meet in Manchester, England.

Tyler Farrar, Christian Meier, Svein Tuft and Zach Bell are among the top roadies using the Burnaby four-day track race for a pre-season tune-up. Colby Pearce and Daniel Holloway win the overall title at the Canadian event.

Hammer sets new world mark in pursuit

Americans Taylor Phinney and Sarah Hammer are looking forward to a little friendly competition as track worlds kick off Wednesday in Denmark.

Sir Chris Hoy is back on track for the 2010 UCI Track Cycling World Championships in Copenhagen, Denmark.

Two-time world champion Sarah Hammer set a new U.S. record in the individual pursuit Friday, clocking a 3:27.5 in qualifying rounds at the World Cup track event in Cali, Columbia.