A New York food blogger was caught cheating in the Fort Lauderdale A1A Half Marathon when an eagle-eyed viewer found an incriminating photo of the runner after she had won second-place.

Jane Seo, 24, was disqualified on Sunday night after a race analyst, Derek Murphy, realized a picture of her watch did not match the total amount of miles included in the race.

Murphy found a photo of Seo after just having crossed the finish line, smiling with her second-place medal, he said in his analysis site, Marathoninvestigation.com.

Jane Seo, 24, (pictured with her medal) was caught cheating after placing second at the Fort Lauderale A1A Half Marathon on Sunday when a race analyst found a picture of her GPS watch did not match the total miles

A close-up shot of her watch shows Seo only ran 11.65 miles instead of the 13.1 miles in the half marathon

Seo apologized on Instagram after she was caught and even admitted to making up the missing miles on her bike later on that day

He then zoomed into the picture to see Seo's Garmin GPS watch had been missing miles.

The 24-year-old had a total of 11.65 miles with a time of one hour, 22 minutes and seven seconds. About one and half miles were cut from her run which should have totaled 13.1 miles, Murphy said.

The race investigator also analyzed her pace and found her results showed she had been running at a faster speed for the remaining 11 kilometers, when most runners begin to slow down.

As he further analyzed her time, Murphy said Seo cut the course about 3/4 of a mile from the turnaround meaning she cut a total of one and half.

Jane Seo, pictured in Fort Lauderdale, is a self-proclaimed lover of running and an avid cyclist

Fort Lauderdale A1A Marathon & Half Marathon officials addressed the incident in a Facebook post saying they have spoken to Jane and accepted her apology

Seo, who was a writer at the Huffington Post, came clean about cheating on her Instagram account and even admitted to making up the missing miles on her bike after the race.

'I made a HORRIBLE choice at the Ft. Lauderdale Half Marathon on Sunday, February 20. I wasn't feeling well so I CUT THE COURSE and headed to the finish line,' she said.

Seo admitted to pretending to run the entire course and acknowledged she should have disqualified herself.

She added: 'Even worse, not only did I steal the award from the true, well-deserved runners/finishers, but also proceeded to BIKE the course afterward with my GPS watch to cover my wrong doings. What an idiot I was!

'As I admit to my foolishness, I am extremely ashamed. I sincerely [apologize] for bringing negativity out of the running community that I truly admire and respect. I take full credit for this mistake without any excuses and will face the consequences. I am so sorry, everyone.'

After the race Seo logged data into Strava, a mobile app for runners, which did not include any GPS data, Murphy wrote.

She later covered her tracks by cycling the distance and submitted another entry that showed she completed the race. Seo has since deleted her Instagram.

Seo (pictured during the race) defended her time to officials after she crossed the finish line

Jane's Strava entry later that day shows she completed the entire race. The route is seen above

Derek Murphy examined the runner's pace and found she averaged less time per mile during the second half of the race when runners tend to slow down

Seo manually posted the data on Strava, an app for runners, which initially did not contain any GPS data

Murphy explained that although Seo admitted to cheating, it was not until the evidence was brought to her attention.

He said: 'She had the opportunity to come clean after crossing the finish line. Instead, she doubled down with the deceit. She approached race officials and other runners defending her time.

'They did not approach her. She proactively went to them. She did attend the awards ceremony to collect her 2nd place award.'

Murphy also made note of Seo's claims of feeling unwell during the race. The investigator said the woman did not look distressed in her finish line photos and she still had the energy to bike 13.1 miles that afternoon to cover up her tracks.

Fort Lauderdale A1A Marathon & Half Marathon officials addressed the incident in a Facebook post saying they have spoken to Jane and accepted her apology.

'I have spoken with Jane Seo and she apologized to me, which I gladly accepted. I took the time to talk and console her. She is hurting. She accepts the consequences, and I finally got her to laugh after a few minutes. Life is about second chances. I have moved on, and suggest the same for everyone,' the post said.

Seo's writer profile says she graduated from Harvard University in 2014. In 2015, the blogger wrote an article titled:How I Learned to Love Running, One Race at a Time