Kip Keino Classic 2024 women’s 400m hurdles bronze medalist Bianca Stubler upon landing at the Jomo Kenyatta International Airport in Nairobi on May 29, 2025. [Courtesy] America’s women’s 400m hurdler Bianca Stubler is hopeful to upgrade last year’s bronze to gold in the sixth edition of the Absa Kip Keino Classic Continental Tour Gold meet due to go down at the Ulinzi Sports Complex in Nairobi on Saturday. She will face well known rivals, including race defending champion Amalie Iuel of Norway. Elisabeth Slettum, also of Norway, will also be in the mix to improve on her seventh place finish…