Femke Bol holds the London Athletics Meet women’s 400 m hurdles record with 51.30 seconds.
The Dutch hurdler set the mark on 20 July 2024 at London Stadium. She won the Diamond League race while breaking her own meeting record and the Diamond League record for the event at that meeting.
Bol’s performance came just days after she ran 50.95 in La Chaux-de-Fonds, lowering her European record and becoming the second-fastest woman ever over 400 m hurdles at that time. Her London run was slower than that lifetime best but still exceptional over the full lap and ten hurdles.
Sydney McLaughlin-Levrone is the most common mix-up because she has set multiple world records, including a 50.37 Olympic record at Paris 2024. Dalilah Muhammad has also been a world-record holder. Neither owns the London meeting mark; that record belongs to Bol.