Race Report: Amos Kipruto - Bank of America Chicago Marathon 2026

Amos Kipruto has made the 2026 Bank of America Chicago Marathon the defining race of his career: victory in 2h 01m 09s and, above all, a NEW PERSONAL BEST. The Kenyan improved on the 2h 01m 39s he ran in London in April by 30 seconds, also setting a new season’s best.

In cool, ideal conditions, Kipruto finished 1 minute and 47 seconds ahead of Tadese Takele. The result is of historic significance: it is the second-fastest time ever recorded on the Chicago course, behind only Kelvin Kiptum’s 2h 00m 35s, and places Kipruto joint fifth amongst the fastest marathon runners of all time. Following a third-place finish in 2024 and a second-place finish in 2025, his progression in the Illinois city has reached its perfect culmination.

Consistency — 93/99 (excellent)

This score reflects a race run with extraordinary consistency: despite an extremely fast pace, Kipruto paced himself with almost metronomic precision. In an elite marathon, maintaining this level of control means avoiding energy-sapping fluctuations and staying focused as the race enters its decisive phase.

This consistency is all the more valuable when considering the tactical developments. The leading group passed the half-marathon mark in 60:21, after which Jacob Kiplimo dramatically increased the pace following the pacemakers’ withdrawal. Between the 25th and 30th kilometres, Kiplimo and Kipruto covered 5 km in 14:09, a split theoretically consistent with a marathon under two hours. Kipruto absorbed the acceleration without losing efficiency or compromising his finish: his 93/99 time perfectly illustrates this ability to remain composed in a highly selective race.

Pacing — 74/99 (mild to moderate positive split)

Over approximately the first 35% of the race, Kipruto maintained an average pace of 2:52 min/km; over the final 35%, his pace slowed to 2:56 min/km. This 4-second-per kilometer slowdown, equivalent to approximately 2.3%, indicates a modest positive split: the closing stages were slightly slower, but there was no significant collapse in pace.

These figures need to be considered in the context of how the race unfolded. Kipruto ran the opening stages at an exceptional pace, responded to the defending champion’s attack and, around the 33.8 km mark, made the decisive move that ultimately secured his victory. His 14:20 split between 30 km and 35 km allowed him to gain 12 seconds on Kiplimo; by 38.6 km, his lead had already grown to more than a minute and a half.

The 74/99 score therefore reflects a natural average slowdown across the broader race segments, rather than poor pacing management. If there is one area for potential improvement, it would be maintaining a slightly faster pace over the closing kilometers. However, once he had established a decisive lead, Kipruto was able to manage his fatigue and protect a victory that was firmly within his grasp.

Benchmark — 99/99 (on a par with the fastest time ever)

Here, the verdict is unequivocal: A NEW PERSONAL BEST. The previous time of 2h 01m 39s, set at the TCS London Marathon on 26 April 2026, has been beaten by 30 seconds. Chicago therefore also marks a new season’s best over this distance.

This is not merely a matter of improving his time. Kipruto set his personal best whilst winning a Major against top-class opponents and under the pressure of a race he openly set out to win. It is his second victory on the World Marathon Majors circuit after London 2022, but also the culmination of a three-year run on the podium in Chicago. The 99/99 time reflects a performance that is practically at the very peak of his historical potential.

Overall, this was a marathon characterised by control, tactical courage and the ability to finish strongly. The consistency of his effort and his response to the acceleration between the 25th and 30th kilometres were the key strengths of his performance; the slight average slowdown towards the end remains a minor detail compared to the decisive surge and the dominance established in the final kilometres. After briefly collapsing to the ground from exhaustion, Kipruto got back up smiling: the perfect image of a day in which ambition, preparation and talent produced a triumph destined to go down in Chicago’s history.