If you watch Kelvin Kiptum break the world record at the 2023 Chicago Marathon and Eluid Kipchoge break the world record in the 2022 Berlin Marathon, you see the joy and exasperation of their achievement.
That joy was missing in the winners of the London marathon. It's not evidence, but it's an interesting data point. Another data point: Not only did the first two finishers break two hours, the third place finisher, Jacob Kiplimo, broke the world record.
Like, if we find out the top two finishers here doped very few would be surprised.
That said - it's still an amazing accomplishment.
> Determined to prove he is competing clean, Adidas provided $50,000 (£36,900) to the Athletics Integrity Unit, the sport's anti-doping body, to frequently test Sawe over a 12-month period.
> That began with a reported 25 out-of-competition tests in the lead-up to Berlin in September, continuing at a similar rate as he prepared for London.
> Sawe said on Monday: "It's very important to me because it gets out the doubt in my career of athletics and yesterday's performance.
> "It shows Sabastian Sawe is clean. It shows running clean is good, and we can run clean and we can run faster.