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This pro runner finished the Boston Marathon at 22 weeks pregnant
Before Monday’s race, the British Olympian said her only goal was to get herself and her 'little teammate' to the finish line.
Calli Hauger-Thackery came into Monday’s Boston Marathon with a different goal than most professional runners: get herself and her baby to the finish line.
The British olympian, who is 22 weeks pregnant entering race day, wrote in an Instagram post the day before the race that she had “no real goal other than to try and get me and our little legend our FIFTH finishers medal together.” Hauger-Thackery accomplished that goal, crossing the finish line Monday in 2:43:58.
Hauger-Thackery, 33, was part of this year’s professional women’s field — racing with bib No. 114. She returned to Boston after finishing sixth in the 2025 race.
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In that pre-race Instagram post, Hauger-Thackery shared photos of her “bump friendly” race kit and wrote that she would be “listening to the bod more than ever before.”
She also called her baby her “little legend” and “little teammate,” adding that Monday’s race would be their third marathon together. Hauger-Thackery won the Honolulu Marathon in December before she knew she was pregnant, then won the Houston Marathon in January in 2:24:17 after learning she was expecting on Christmas Eve.
The Boston Globe recently reported that Hauger-Thackery has been able to keep training at a similar level during pregnancy, adjusting expectations and paying closer attention to how she feels from day to day. “The pregnant life is just crazy,” she told the Globe. “One day you feel like a million dollars, but then there’s other days where you’re like, ‘Oh, wow, a [training] session cannot happen today.’”
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Before the race, Hauger-Thackery also wrote that she was thinking about “all the amazing women who have paved the way before me” and other pregnant women “taking on start lines and doing epic things while growing a human.”
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