A photo finish occurs when two or more swimmers touch the wall nearly simultaneously. Officials must use high-speed cameras and electronic sensors to determine the official winner of the race. These systems record images at thousands of frames per second to see the exact touch. This technology eliminates the uncertainty of the human eye during a very close competitive finish. A camera shows a swimmer won the gold medal by only one hundredth second. These results are final and provide a clear answer for fans and athletes alike. Photo finishes are common in short sprint events where every tiny movement matters for speed. This precision ensures the most deserving athlete receives the higher ranking in the results.
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