Teenager Cooper Lutkenhaus has beaten Olympic and world champion Emmanuel Wanyonyi over 800 meters at the Oslo Diamond League.
His winning time of 1:42.08s is the fastest by anyone in 2026, an improvement on his under-18 world best, and moves him up to joint-14th on the all-time list. Bryce Hoppel and Josh Hoey are the only American men above him, while Nijel Amos’ under-20 world record of 1:41.73s is well within reach.
Lutkenhaus let Wanyonyi run behind the pacemaker for 600m, as the field quickly strung out and they split 49.81s at halfway. With 200m to go, the 17-year-old kicked hard and built a lead which Wanyonyi could not quite close — the margin of victory was one hundredth of a second. Canadian Marco Arop placed third.
“It was a very tough race and I had to dive for the line to be sure of the win,” Lutkenhaus said, per Diamond League. “I knew he (Wanyoni) was on my shoulder and I was willing the line to come towards me. To beat the Olympic champion is awesome and it means a lot.”
The success keeps coming for Lutkenhaus in his debut year as a professional. Victory at the Bislett Stadion was his second in four days, having won at the Stockholm Diamond League on Sunday, a strong start to an outdoor season following on from World Indoor gold from this March.
Who won the 200m?
Letsile Tebogo won a much-awaited men’s 200m in 19.84s, his fastest time since the 2025 World Championship in September. The Olympic champion has progressed slowly this year, with this his first victory at his fourth Diamond League appearance of 2026. Running out of lane six, he won by nearly three tenths in cool conditions and with very marginal tailwind (+0.2m/s). South Africa’s Sinesipho Dambile was runner-up.
In sixth place in the 200m was teenager Gout Gout on his Diamond League debut — his 20.60s run was his slowest since August 2024. The Australian is the quickest this year over half a lap (19.67s in Sydney in April) and holds the under-20 world record, but struggled running the bend from lane five. He was last at 120m, half a second back on Tebogo, before finding some speed on the home straight to gain two places.
“There’s definitely a lot more room for me to improve but I have plenty of time on my side,” Gout said on the Diamond League website. “I love competing against the big boys and I’ll be back for sure.”
The 200m was won by Letsile Tobogo with Gout Gout finishing sixth (Sona Maleterova/Getty Images)
Elsewhere in the Diamond League
Timothy Cheruiyot beat Yared Nuguse to win the dream mile in a photo finish. The pair clocked 3:48.21s as 12 men fought it out on the final straight. Cam Myers, the 20-year-old Australian, finished well, and moved through the field for third place. This is Cheruiyot’s first Diamond League win since September 2021 — he was world champion over 1,500m in 2019 and has Olympic silver in the same distance. Germany’s Robert Farken, who led the field at 1,200m, ended up 10th.
A competitive men’s 5,000m resulted in a late surge by Addisu Yihune, who won in a world-leading time of 12:47.62s and held off the fast-finishing Birhanu Balew. A slower middle part of the race set up an exciting final kilometer, with 10 men still in contention at the start of the penultimate lap. Eleven athletes broke the 13-minute barrier, including American trio Parker Wolfe, Grant Fisher and Graham Blanks, who ended up fourth, fifth and sixth.
There were five personal bests from a race featuring 16 men, plus area records for Balew (Asia) and Australian Ky Robinson (Oceania), the latter who led for much of the race but finished eighth.
Julien Alfred recorded her tenth win from 11 races this season. The St Lucian ran 10.76s for 100m with a strong following wind (+3.2m/s) that was outside the legal limit.
“I love the competitiveness in the 100m right now,” she told reporters afterwards. “It keeps me on my toes.”
Amy Hunt followed her in second place (10.99s), backing up her personal best run from Stockholm at the weekend to record consecutive sub-11s times.
