Tigst Assefa returns to Berlin on Sunday chasing the mixed world marathon record. Here is exactly what she needs to run, and why 1:57 is the whole story.
Pictures from TOBIAS SCHWARZ, Getty Images
The last time Tigst Assefa raced in Berlin, she rewrote what the sport thought was possible for a woman.
2:11:53. Two minutes and eleven seconds off the previous world record, in a single afternoon.
On Sunday, 27 September, she is back on the same road.
The record she once held has moved out of reach in a way that has almost nothing to do with her.
What actually happened in Berlin in 2023
On 24 September 2023, Assefa went through halfway in 1:06:20.
She kept running.
She crossed the finish under the Brandenburg Gate in 2:11:53, and it was a mixed world record.
The previous record was Brigid Kosgei's 2:14:04 from Chicago 2019.
Assefa took it by more than two full minutes on a single 26.2-mile stretch. Nothing about that had ever happened before in the women's marathon.
The record she now needs is not the record she set
Since 2023, the mixed world marathon record has moved.
Ruth Chepng'etich ran 2:09:56 at Chicago in October 2024.
Then, in October 2025, she received a three-year doping ban from the Athletics Integrity Unit.
The record stands anyway, because it predates the sample that triggered the ban.
That is an uncomfortable fact hanging over the front of the women's marathon record book. It is one Assefa has never publicly addressed.
What she has said, on the record, in Berlin this week, is that she wants to run a personal best on Sunday.
The maths that everyone is quietly doing
Her Berlin course record is 2:11:53. The current world record is 2:09:56.
The gap is 1 minute 57 seconds.
That is the number every coach, journalist, and Ethiopian federation official is looking at right now.
Across 42.195 kilometres, 1:57 is 2.8 seconds per kilometre faster than her career best.
She has never run that pace over the full distance. Nobody has, in a legal race, in the history of women's marathon running.
What she has said in Berlin this week
At Wednesday's press conference, Assefa was asked directly about the world record.
"I am really looking forward to running on the fast course in Berlin again and hope that I can continue my success story here on Sunday. I am very well prepared and want to run a personal best."
That is the language of an athlete leaving herself room.
A personal best in Berlin means faster than 2:11:53.
The organisers have said her lead group will run at 2:10 pace. The world record itself, she did not name.
Her form arriving is the best of her career
The reason the question of a record is even reasonable is what Assefa has done in the two years since Berlin 2023.
In April 2026, she ran 2:15:41 to defend her London Marathon title.
That was a women-only world record, her second in a row on that course, taking nine seconds off her own mark from 2025.
It was also the first time three women broke 2:16 in the same race.
Her coach's target for Sunday, per organisers, is the 2:10 barrier.
Whether she pushes past it into world record territory is the question the race will answer.
What the race is going to look like
The 8:45 a.m. start is 30 minutes earlier than last year.
That was a direct response to the 25°C heat that spoiled the 2025 record attempts.
The forecast for Sunday is close to ideal: 13°C at the gun, rising to 17.5°C by the time the elite women finish.
Light wind. Low humidity.
Assefa's lead pacing group will be built around the 2:10 target.
Defending champion Rosemary Wanjiru will run a slightly slower group aiming at sub-2:15.
A third bloc of Ethiopian and European runners will pursue sub-2:20.
The 30-kilometre mark is the whole race
In 2023, Assefa's decisive move came just after 30 kilometres.
She dropped her pacers and ran the last 12.195km alone, faster than anyone thought possible.
Watch for the same pattern on Sunday.
If she is on her 2023 splits at 30k with her breathing quiet and her shoulders low, the record is genuinely live.
If she is a few seconds behind and the pacers are already pulling her along, it is a hard day and a very good time, but probably not a record.
Berlin marathons live or die in that middle stretch between the Kurfürstendamm turn and the long push back toward the Brandenburg Gate.
The doping shadow she will not shake
There is one more thing worth naming, because it will be in every commentary broadcast.
If Assefa takes the record back on Sunday, she takes it from someone currently serving a ban for the exact conduct that clean-sport advocates warn about.
Assefa herself has never failed a test.
The last two years she has been one of the most publicly tested athletes in the sport.
If she runs 2:09-something on Sunday, the record will feel, for many people, like the sport being handed back a piece of itself.
What to watch for
Halfway split first.
Any time under 1:04:30 means the record is on.
The 30 kilometre check next: watch her shoulders.
Assefa in world-record form runs almost flat-shouldered, jaw set.
Then the final 2.2 kilometres.
The stretch back down Unter den Linden toward the Brandenburg Gate is where legs either survive or fold.
In 2023, she got faster there. That is what a record-breaker looks like at 40 kilometres.
At the very least, expect a personal best.
Assefa herself has already committed to that in front of a room of reporters. Beyond that, the road decides.
Berlin, thirteen world records deep, is set up to help her.
On Sunday morning, you will find out whether she needed the help.
