Allyson Felix poses for SI photographer Peter Read Miller, who said of the shoot: “We built a 30-foot ramp, painted a sunset sky background and had some foam pads for Felix to crash into as the future Olympian did a series of runs and jumps in advance of her first major story in SI.” The photo was shot with a Canon EOS-1Ds, EF 70-200mm f/2.8L IS USM zoom, shot at 1/250 f/6.3. (Peter Read Miller)
GALLERY: Peter Read Miller’s Favorite Shots

Allyson Felix poses for SI photographer Peter Read Miller, who said of the shoot: “We built a 30-foot ramp, painted a sunset sky background and had some foam pads for Felix to crash into as the future Olympian did a series of runs and jumps in advance of her first major story in SI.” The photo was shot with a Canon EOS-1Ds, EF 70-200mm f/2.8L IS USM zoom, shot at 1/250 f/6.3. (Peter Read Miller)

GALLERY: Peter Read Miller’s Favorite Shots

Usain Bolt races to a gold medal during the 200-meter dash on Thursday, becoming the first man to repeat as 100 and 200 champion in consecutive Olympics. (Simon Bruty/SI)
GALLERY: London 2012 Olympics Games Day 13 | Day 12 | Day 11 | Day 10 | Day 9 LAYDEN: Bolt silences critics and completes an unprecedented state of dominanceVIDEO: Is Bolt the greatest sprinter in Olympic history? | What to Watch: Day 14

Usain Bolt races to a gold medal during the 200-meter dash on Thursday, becoming the first man to repeat as 100 and 200 champion in consecutive Olympics. (Simon Bruty/SI)

GALLERY: London 2012 Olympics Games Day 13Day 12 | Day 11 | Day 10 Day 9 
LAYDEN: Bolt silences critics and completes an unprecedented state of dominance
VIDEO: Is Bolt the greatest sprinter in Olympic history? | What to Watch: Day 14

Usain Bolt outran fellow Jamaican Yohan Blake in the 100-meter dash on Sunday to capture the gold medal. The defending gold medalist struggled out of the blocks but overtook the field to finish in 9.63 seconds, the second-fastest 100 in history. Bolt joins Carl Lewis as the only men with consecutive gold medals in the Summer Games’ marquee track event. Justin Gatlin of the U.S. earned the bronze medal. (Bill Frakes/SI)
GALLERY: London 2012 Olympics Games Day 9 | Day 8 | Day 7 | Day 6 | Day 5 LAYDEN: Bolt adds to developing legacy with second straight gold in the 100WINN: Images of Bolt are everywhere in London

Usain Bolt outran fellow Jamaican Yohan Blake in the 100-meter dash on Sunday to capture the gold medal. The defending gold medalist struggled out of the blocks but overtook the field to finish in 9.63 seconds, the second-fastest 100 in history. Bolt joins Carl Lewis as the only men with consecutive gold medals in the Summer Games’ marquee track event. Justin Gatlin of the U.S. earned the bronze medal. (Bill Frakes/SI)

GALLERY: London 2012 Olympics Games Day 9 | Day 8 | Day 7 | Day 6 | Day 5 
LAYDEN: Bolt adds to developing legacy with second straight gold in the 100
WINN: Images of Bolt are everywhere in London

Tommie Smith crosses the finish line after winning the 200 meter at the 1968 Olympics in Mexico City. The men’s track and field team dominated the competition. They took gold in the sprint events, swept the 400 meters and won five out of eight field events. Overall they took home 10 individual gold medals, two relay team gold medals, five silver and seven bronze. (Neil Leifer/SI)
GALLERY: Top U.S. Summer Olympics Teams

Tommie Smith crosses the finish line after winning the 200 meter at the 1968 Olympics in Mexico City. The men’s track and field team dominated the competition. They took gold in the sprint events, swept the 400 meters and won five out of eight field events. Overall they took home 10 individual gold medals, two relay team gold medals, five silver and seven bronze. (Neil Leifer/SI)

GALLERY: Top U.S. Summer Olympics Teams

Torchbearer Michael Johnson, the 400m world record holder and Olympic gold medallist, carries the Olympic Flame at Stonehenge on Thursday. With just over two weeks to the start of the London 2012 Olympic Games, the Olympic Flame is now on Day 55 and the final leg of a 70-day relay involving 8,000 torchbearers covering 8,000 miles. (Photo by Matt Cardy/Getty Images)
EPSTEIN: Forget Bolt. Blake is man to beat in London

Torchbearer Michael Johnson, the 400m world record holder and Olympic gold medallist, carries the Olympic Flame at Stonehenge on Thursday. With just over two weeks to the start of the London 2012 Olympic Games, the Olympic Flame is now on Day 55 and the final leg of a 70-day relay involving 8,000 torchbearers covering 8,000 miles. (Photo by Matt Cardy/Getty Images)

EPSTEIN: Forget Bolt. Blake is man to beat in London