Colin O’Brady ’06 completed the first ever “solo, unsupported, unaided” crossing of Antarctica on Wednesday, according to his website.

During the 54-day-long journey, which started on the Ronne Ice Shelf on the Atlantic and finished on the Leverett Glacier on the Pacific, O’Brady pulled a 300-pound sled 932 miles. In completing the crossing — which was unsupported by people and unaided by wind — O’Brady, 33, beat 49-year-old British army captain Louis Rudd, who had been competing against O’Brady to complete the unprecedented crossing. The two started at the same time on Nov. 3.

“I woke up this morning about 80 miles away from the finish line,” wrote O’Brady in an Instagram post published early Wednesday EST before finishing. “I wonder, would be possible to do one straight continuous push all the way to the end? By the time I was lacing up my boots the impossible plan had become a solidified goal. I’m going to go for it. I can feel it in my body that I am in the zone and want to harness that. It’s a rare and precious feeling to find the flow. I’m going to push on and try to finish all 80 miles to the end in one go.”

O’Brady completed the last 80 miles in a sleepless 32-hour push to the finish line.

Neither O’Brady nor anyone on his team was immediately available to comment.

Check back later for updates.

Skakel McCooey | skakel.mccooey@yale.edu