Kerim Okten / EPA

Blind Brazilian runner Terezinha Guilhermina and her guide Guilherme Soares de Santana react after crossing the finish line to win the Women's 100m T11 final at the Paralympic Games in London on Wednesday night. 

Blind or partially-sighted athletes are permitted to use a guide runner in Paralympic races, but the guide is never permitted to cross the finish line before the blind runner. At the 2012 Games, guides became eligible for medals for the first time.

 Video: Team USA guns for Oscar Pistorius in 100m showdown

24 hours earlier Guilhermina's bid for 400m glory was derailed when Soares de Santana tripped on the home straight, a moment captured in a series of heartbreaking images published on PhotoBlog.

But their despair was replaced by joy as Guilhermina took the 100m gold in a world record time of 12.01 seconds, adding to the 200m title she won on Sunday.

Suzanne Plunkett / Reuters

Kerim Okten / EPA

Julian Finney / Getty Images

Julian Finney / Getty Images

Related content:

• Oscar Pistorius sorry for timing, not content, of angry outburst at Paralympics
• Iraq vet: 'Now it's time to win' at Paralympics
• Ex-Marine Angela Madsen on her journey from homelessness to Paralympics
• Nightly News: Representing Afghanistan at the Paralympic Games
• 'Meet the Superhumans': Paralympians burst onto world stage
• More images from the Paralympic Games on PhotoBlog

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Julian Finney / Getty Images

Terezinha Guilhermina of Brazil runs as her guide Guilherme Soares de Santana lies on the track after he fell in the Women's 400m - T12 Final on day 6 of the London 2012 Paralympic Games at Olympic Stadium on Sept. 4, in London, England.

Julian Finney / Getty Images

Assia El Hannouni of France wins gold in the Women's 400m - T12 Final on day 6 of the London 2012 Paralympic Games at Olympic Stadium on Sept. 4, in London, England.

Christopher Lee / Getty Images

Terezinha Guilhermina of Brazil and her guide Guilherme Soares de Santana lie on the track after falling in the Women's 400m - T12 Final on day 6 of the London 2012 Paralympic Games at Olympic Stadium on Sept. 4, in London, England.

Leon Neal / AFP - Getty Images

Brazil's Terezhina Guilhermina and her guide Guilherme Soares de Santana console each other after Soares de Santana fell just ahead of the finish line of the women's 400m T12 final at the Paralympic Games at the Olympic Park in east London, England on Sept. 4.

Update, September 6th: The night after these pictures were taken Terezinha Guilhermina and Guilherme Soares de Santana returned to the track, and this time their race had a much happier ending. Find out what happened when they competed in the 100m final.

Related content:

• Video: Team USA guns for Oscar Pistorius in 100m showdown 
• Oscar Pistorius sorry for timing, not content, of angry outburst at Paralympics
• Iraq vet: 'Now it's time to win' at Paralympics
• Ex-Marine Angela Madsen on her journey from homelessness to Paralympics
• Nightly News: Representing Afghanistan at the Paralympic Games
• 'Meet the Superhumans': Paralympians burst onto world stage
• More images from the Paralympic Games on PhotoBlog

Follow @NBCNewsPictures

Sign up for the NBCNews.com Photos Newsletter

Pilar Olivares / Reuters

Marathon runner Gladys Tejeda, the first Peruvian athlete who qualified for the 2012 London Olympic Games, runs during her training in the Andean province of Junin on Monday. A private company will take Tejeda's mother Marcelina Pucuhuaranga, 69, to London as part of the "Thank you Mom" program. For Pucuhuaranga, who received her first passport, it will be the first time travelling out of Peru. The program will take about 120 mothers of different athletes around the world to attend the games. Tejeda, the youngest of nine children, returned to her hometown to visit her mother and to focus on training where she will run more than 20 km every day in the highlands (over 4,105 meters above sea level).

Pilar Olivares / Reuters

Gladys Tejeda (C), the first Peruvian athlete who qualified for the 2012 London Olympic Games, prepares a typical Pachamanca dish with her sister Rosario (L) and her sister-in-law Carmen for a Mother's Day celebration at their home in the Andean province of Junin.

Pilar Olivares / Reuters

Gladys Tejeda and her mother Marcelina Pucuhuaranga give a toast at their home in the Andean province of Junin.

See more images from Peru in PhotoBlog.

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Ryan Pierse / Getty Images

Runners make their way around the 13km course during Nike She Runs The Night at Centennial Park on Thursday, May 3, 2012 in Sydney, Australia.

Ryan Pierse / Getty Images

Ryan Pierse / Getty Images

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Mindy Schauer / The Orange County Register via AP

Sandra Parker and Andrew Keith crawl through the mud during the Gladiator Rock N' Run, April 28, at the Great Park in Irvine, Calif.

Sandra Parker, 48, a dentist in Orange, Calif., and Andrew Keith, 55, a Chiropractic in West Covina, Calif., who shared a run for their first date, tie the knot at the Gladiator Rock N' Run at the Great Park in Irvine. Parker's friend and running coach Lisa Roehm was dressed as a run-away bride last year which gave Parker the idea to actually be a bride in this year's race.

See the video from The Orange County Register.

Mindy Schauer / The Orange County Register via Zuma Press

Sandra Parker and fiance Andrew Keith with members of their wedding party, gun it at the start of the Gladiator Rock N' Run.

Mindy Schauer / The Orange County Register via AP

As spectators cheer the bride and groom, Sandra Parker and Andrew Keith, the couple finishes the last muddy leg of the Gladiator Rock N' Run.

Mindy Schauer / The Orange County Register via AP

Sandra Parker and Andrew Keith toast each other with water during a hydration stop at the Gladiator Rock N' Run.

Mindy Schauer / The Orange County Register via AP

Sandra Parker, 48, and Andrew Keith, 55, and Parker's daughters Miriam, 15, left, and Lauren, 18, take part in the Gladiator Rock N' Run.

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Jim Hollander / EPA

A marathon runner carries a Palestinian and Israeli flag as well as a a white flag with a Peace symbol as he enters the Zion Gate, after passing two Israeli Border Policemen during the Jerusalem Marathon, in Jerusalem, on March 16. It is the second year the Jerusalem Marathon has been organized and the three events, a full marathon, a half marathon and a 10 kilometers run, attracted some 15,000 participants on a chilly and rainy day in Jerusalem.

Sebastian Scheiner / AP

77-year-old Holocaust survivor Hanoch Shahar, center, runs in Jerusalem, on March 16. About 15,000 runners, including 1,500 from overseas, are competing Friday, with some 1,000 competitors expecting to complete the full 42 kilometers (26.2 miles) marathon distance, with others aiming to complete shorter distances, including Mayor Nir Barkat who says he plans to run half a marathon and 77-year old Hanoch Shahar aiming for 10km.

JERUSALEM -- Hanoch Shahar discovered a lifelong love of running as a child orphaned in World War II. On Friday, the 77-year-old Holocaust survivor ran along with some 15,000 other athletes in Jerusalem's second annual marathon.

The oldest of the runners, Shahar ran 6 miles in an hour and four minutes. He completed a full marathon two months ago and said at his age, he can run only one 26-mile race a year.

"Running gives me a sense of freedom," said Shahar, whose parents were killed by Nazis at the Theresienstadt concentration camp in what is now the Czech Republic. He said he ran there to escape his sorrow.

After the war, in a Prague orphanage, he would pass his time running and listening to track events on the radio. For hours at a time, he said, he would chase the orphanage's German Shepherd.

"That's where I got the running bug," he said.

On Friday, he and thousands of other runners dashed alongside ancient sites and through Jerusalem's steep streets in the second event of its kind in the city. The route took runners through the walled Old City, alongside the president's residence and up Mount Scopus to circle the campus of the Hebrew University of Jerusalem.

"To run through the Old City is an amazing experience," Shahar said as he boarded a bus back to his home town of Safed in northern Israel.

Read the full story.

-- Associated Press

Sebastian Scheiner / AP

Runners are seen next the Jerusalem's old city Zion Gate during the second annual marathon in Jerusalem, on March 16.

According to the Associated Press, Geoffrey Mutai finished in 2 hours, 5 minutes, 6 seconds, crushing the previous mark of 2:07:43 set by Tesfaye Jifar of Ethiopia a decade earlier.

The 30-year-old has established himself as the favorite at next summer's Olympics after two landmark performances this year.

In April, he ran the fastest 26.2 miles in history: 2:03:02 in Boston. It didn't count as a world record because the course is considered too straight and too downhill. Read more...

Craig Ruttle / AP

Geoffrey Mutai, of Kenya, runs along 5th Avenue in the Manhattan borough of New York on his way to winning with a course record in the men's division at the New York City Marathon on Nov. 6.

Firehiwot Dado wasn't a favorite coming into the women's race and victory seemed impossible with even a few miles left. But the Ethiopian made a stunning comeback for her first major marathon title.

Justin Lane / EPA

Firehiwot Dado of Ethiopia celebrates after she won the 2011 New York City marathon.

The marathon's official web site says that the first-ever New York City Marathon was a humble affair. In 1970, 127 runners paid the $1 entry fee to NYRR to participate in a 26.2-mile race that looped several times within Central Park. Fifty-five runners crossed the finish line. In 2010, there were more than 47,000 finishers, the most ever.

Several men's and women's records fell in the early years, but the New York race was soon about more than speed. When international sanctions against South African athletes were lifted in 1992, Willie Mtolo chose to run New York. He bested the field and garnered media coverage around the world. When Tegla Loroupe broke the tape at the Central Park finish in 1994, her win proved that African women were on par with the African men in their ability to run the 26.2-mile distance. She did it in New York, and the world took notice. Soon Kenyan women were invited to other major distance races.

Chris Trotman / Getty Images

Runners cross the Verrazano-Narrows Bridge towards Brooklyn at the start of the ING New York City Marathon as seen from the air on Nov. 6.

In 2000, NYRR added an official wheelchair division to the marathon. Now the ING New York City Marathon has grown to become one of the most competitive wheelchair marathons anywhere in the world, with more than 200 wheelchair and handcycle athletes. In addition, a wide variety of ambulatory athletes with disabilities participate.

Jason DeCrow / AP

A wheelchair racer crosses the Verrazano-Narrows Bridge at the start of the New York City Marathon, Nov. 6.

 Masazumi Soejima of Japan won this year's men's wheelchair division with a time of 01:31:41, and Amanda McGrory of the US won the women's wheelchair division in 01:50:25.

Timothy A. Clary / AFP - Getty Images

Runners as they make their way up 1st Avenue in Manhattan during the 2011 ING New York City Marathon Nov. 6. The 26.2 mile marathon course is through the five bouroughs of New York City and is one of the largest in the world.

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