Sabastian Sawe will return to the BMW Berlin Marathon on Sunday 21 September to defend his 2025 title, race director Mark Milde confirmed in a statement released on Tuesday morning. The Berlin announcement is the first concrete fixture in the Kenyan's calendar since his 1:59:30 in London on 26 April, when he became the first man to run inside two hours in a record-eligible marathon. Sawe will line up in Berlin alongside the regular crop of pacers the Brandenburg Gate course has built its reputation on, and Milde made clear the meeting expects him to "test the limits of what is now humanly possible" rather than ride out the autumn on a celebration lap.
The stop is consistent with Sawe's stated preference for fast, point-to-point routes. Berlin has hosted nine of the last eleven men's world records, and the long flat sections from Charlottenburg through Tiergarten have repeatedly given the world's strongest marathon runners exactly what they need to push the all-time list down. Sawe ran 2:02:16 there in 2025 in his first Berlin appearance, in conditions that were warmer and windier than the city's autumn averages, and his Adidas team have spent the last six months arguing that the equivalent fitness on a 21 September Berlin morning is worth somewhere between forty seconds and a minute and a half.
The Berlin field has been steadily falling into place around the headline. Ethiopia's Milkesa Mengesha will return to defend the title he won in 2024 before Sawe took it last year, and organisers are expected to confirm a half-dozen sub-2:05 athletes alongside a women's lineup that has yet to be revealed. Mengesha has spent much of the spring training in Addis Ababa and ran a controlled 60:09 at the United Airlines NYC Half in March, suggesting his autumn build is intact. Berlin organisers have also said the men's field will not include any of the London top three, who are committed to other autumn fixtures.
Sawe will arrive in Germany under one of the most aggressive anti-doping testing regimes in the sport. Adidas confirmed last week that the brand will fund a further $50,000 contribution to the Athletics Integrity Unit's voluntary enhanced testing programme through the end of 2026, extending the regime that produced 25 out-of-competition tests in the build-up to London. Sawe has been outspoken about the value of the programme since signing on to it in 2025, framing his willingness to be tested as part of his contract with the public after a string of high-profile Kenyan doping suspensions earlier in the cycle.
For Berlin, the news is the strongest possible insurance policy against the slow ratification of London's record. The IAAF and the AIU have both confirmed that the formal world-record process for the 1:59:30 will run into the summer, with course measurement, anti-doping samples and finish-line technology all under audit. A Sawe Berlin run that lands inside the same window as the London ratification announcement would create the most concentrated marathon-record news cycle in more than a decade, and would, in Milde's phrasing, "give Berlin the chance to be the first city to host the second sub-two." Whether Sawe can produce that result on a flatter course remains, by his own description, the only interesting question left in his year.