RIO -- After giving New Jersey and her country an exciting run, Sydney McLaughlin's first Olympics competition ended Tuesday evening when the Union Catholic track star did not advance to the finals of the 400-meter hurdles in Rio.

McLaughlin, 17, the youngest Team USA athlete since 1972, finished fifth in her 400-meter hurdles semifinal with a time of 56.22.

Union Catholic wasted little time in congratulating the rising senior on the high school's Facebook page: 

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Congratulations, Sydney, on an amazing run! The UC Community is so proud.  ‪#‎UCinRio ‪#‎vikingpride‬ ‪#‎Rio2016‬ ‪#‎SydtheKid‬ ‪#‎TeamUSA‬

McLaughlin told WNBC's Bruce Beck: "I have no excuse. I just didn't run my race."  Many are predicting that the Dunellen native, who will be just 20 years old when the Olympics are next held in Tokyo, will be back on the international stage again.

New Jersey teen Sydney McLaughlin 'could be the best ever'