The Diamond League rolls into Stockholm with momentum from a record-breaking meet in Oslo. Several of the sport’s biggest stars—including Karsten Warholm, Femke Bol, Armand Duplantis, and Julien Alfred—are set to compete again in high-stakes rematches and season-defining showdowns. Here's what to watch for.

The 2025 Diamond League continues in Oslo with a stacked lineup of Olympic champions, world medalists, and thrilling rematches. From the much-anticipated 300m hurdles showdown to Julien Alfred’s 100m season debut and Emmanuel Wanyonyi’s return in the 800m, here are the top storylines to watch—plus a quick turnaround to Stockholm that sets up even more drama.

Karsten Warholm has never needed other people to run fast. Over the past two years, he’s racked up big wins against overwhelmed fields. When he isn’t racing Abderrahman Samba or Rai Benjamin, Warholm puts the field to bed in the first half of the race. Lesser athletes ease up, but Warholm slams on the gas and barrels across the line. 

Below are FloTrack’s top five professional male performers of 2019:

The IAAF announced the 11 men’s finalists for 2019 Athlete of the Year on Monday. 

Our next installment of event previews for the 2019 IAAF World Championships in Doha, Qatar, focuses on the men's hurdles races.