Stephen Biebelhausen crossed the finish line of Cleveland's Guardian Mile in four minutes and 17 seconds while pushing his daughter, Blake, in a stroller — a time that, if verified, would break the officially recognized world record for the fastest mile ever run with a stroller. The performance came during the stroller division of the annual race, which sends runners east across the city's Hope Memorial Bridge, a span famous for the eight towering sandstone Guardians of Traffic sculptures that also inspired the name of Cleveland's Major League Baseball team.
Biebelhausen's time was nine seconds faster than the recognized men's stroller-mile record of 4:26.29, a mark held by Silas Frantz according to Marathon Handbook. As detailed by the Akron Beacon Journal, Biebelhausen is a former Miami University runner who competed in cross country and middle-distance track events for the school, posting a career-best 3:48.11 in the 1,500 meters as a senior — one of the program's ten fastest times at the time — and qualifying for the NCAA Great Lakes Regional in cross country. Guinness World Records currently lists Frantz as the record holder, having set his 4:26.29 benchmark while pushing his son, Otto, at Arroyo Grande High School in California in June 2025, per Guinness World Records.
Biebelhausen's run was not the fastest mile overall at the Guardian Mile, but it was fast enough to draw national attention to a race that started as a hyper-local idea. The event was created by former physical education teacher and coach Rae Alexander, who launched it after her son Colby suggested organizing a road mile across the Hope Memorial Bridge, according to a Facebook post from the Lakeland Runners Club. Alexander directed the race until her death in April, and this year's stroller division saw her son Colby Alexander finish second, running a 4:32 mile while pushing his own baby, according to Citius Mag.
A Late Push for the Record
Biebelhausen had not built his summer around chasing a stroller record. According to Runner's World, he completed just one stroller-specific workout beforehand — six 400-meter repeats — and initially targeted a 4:44 finish. He had spent the earlier part of the year training for marathons, including the 2024 Boston Marathon, where he finished in 2:25:31, and the Pittsburgh Marathon this spring, before shifting into summer speedwork, the outlet reports.
It was only mid-race that Biebelhausen realized the record was within reach. Runner's World's account notes he opened with a 65-second first lap and crested the bridge at 2:12, giving him a shot at a much faster finish than planned. The bridge's terrain likely played a role: the course climbs steeply over its first half-mile before descending into a long downhill stretch, yielding a net drop of just over 3 meters per kilometer, according to course details published on RunSignup. Hope Memorial Bridge's steep incline shapes the entire field's pacing strategy, and Guardian Mile athletes race across it every year as part of the course.
Comparing the Mark to Other Novelty Records
Biebelhausen's 4:17 also stacks up against other novelty running categories that have drawn attention in recent years. His time was 10 seconds faster than the official beer-mile world record of 4:27.10, set by Canadian athlete Corey Bellemore in 2025, as noted by Defector. On the women's side, the stroller mile world record stands at 5:11, set by runner Kaitlin Donner in 2024. For context on elite mile running generally, British athlete Josh Kerr ran the fastest mile ever recorded, 3:42.66, in London last month, according to ESPN.
None of this puts Biebelhausen's feat in the same tier as Kerr's — but it does place him firmly ahead of the recognized stroller pace, at least for now. Guinness World Records must still verify Biebelhausen's performance before it becomes official, a process that could take time given the documentation and ratification standards the organization applies to such attempts.
Safety Questions Around Stroller Speed Running
The rise of competitive stroller running has also sparked scrutiny from pediatric health experts. Following Frantz's 2025 record attempt, made while pushing a two-month-old, stroller maker Thule and pediatric guidelines cited by The Bump warned that infants under six months old should not be taken jogging because their neck and head stability is still undeveloped. Medical experts recommend waiting until infants can sit upright unassisted before including them in high-speed stroller runs, according to the outlet's October 2025 report.
Biebelhausen's run has not been publicly tied to any similar safety concerns in the available reporting, and no age for his daughter, Blake, is specified in current coverage. Still, the advisory underscores a tension running through this fast-growing niche: as stroller-mile times keep dropping, the debate over how young is too young for a passenger is likely to keep pace.
