Tufts University Athletics

A 20-year-old Tufts University lacrosse player has died ... after she tragically choked during a hot dog eating contest over the weekend.

Madelyn "Madie" Nicpon -- a junior on the Jumbos' lax squad -- was participating in a competitive eating event off-campus on Saturday when something went horribly wrong.

According to The Journal News ... authorities said Nicpon fell unconscious after choking, and was rushed to the hospital after first responders got to the scene.

Sadly, Nicpon passed away just a day later on Sunday.

"In the face of this painful loss," school officials said in a statement, "our hearts go out to Madie's family and friends."

Thousands of students came out to the campus to mourn the loss of Nicpon shortly after her death Sunday evening ... surrounding her jersey with candles and remembering her fondly.

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