Grand Slam Track Miami has officially kicked off and the first day of the competition saw some incredible races. As some of the world’s top sprinters and hurdles faced off against each other, fans were treated to some delightful action.One of the most interesting results of the day came in the women's 100m sprint. Gabby Thomas, who was crowned ‘Slam champion' in the long sprints event group last month, competed in the short sprints event group this time around.While expectations for the Olympic champion were high, she only managed a fourth place finish. Ahead of her, Mellisa Jefferson took the win, Tamari Davis came in second, while Favour Ofili finished third.Elsewhere at Grand Slam Track Miami, Masai Russell delivered the race of a lifetime in the women's short hurdles event group. Competing in the 100m hurdles race, the Olympic champion clocked a world lead and national record of 12.17s for the win. This result makes her the second-fastest woman off all-time in the event, only behind Tobi Amusan.Close behind Russell was Tia Jones. Jones clocked a 12.19s for second-place, with the result placing her third on the all-time list. Rounding out the top three was Ackera Nugent who registered a 12.34s.Another exciting race at Grand Slam Track Miami was the men's 1500m. The entirety of the Paris Olympics podium for the event was in action, and anticipation for the race ran high. In the end, Britain's Josh Kerr was the star of the day, as he avenged his Olympic loss to claim first place, while Yared Nuguse came in second and Cole Hocker settled for third.Grand Slam Track Miami: Full results from day oneHere are the full results from the opening day of action at Grand Slam Track Miami:Short Hurdles Event Group - Women's 100mH Masai Russell - 12.17Tia Jones - 12.19Ackera Nugent - 12.34Kendra Harrison - 12.40Megan Tapper - 12.50Alaysha Johnson - 12.56Maribel Vanessa Caicedo - 13.13Cyréna Samba-mayela - DNSShort Distance Event Group - Men's 1500m Josh Kerr - 3:34.51Yared Nuguse - 3:34.65Cold Hocker - 3:34.79Kethobogile Haingura - 3:35.21Peter Bol - 3:35.24Timothy Cheruiyot - 3:35.61Marco Arop - 3:35.95Tshepo Tshite - 3:36.28Long Hurdles Event Group - Men's 400mHAlison Dos santos - 47.97Chris Robinson - 48.92Malik James-king - 49.43Trevor Bassit - 49.49Caleb Dean - 49.90Khallifah Rosser - 49.97Ludvy Vaillant - 50.38Roshawn Clarke - DNFLong Distance Event Group - Women's 5000m Agnes Jebet Ngetich - 14:25.80Medina Eisa - 14:25.92Hirut Meshesha - 14:40.46Janeth Chepngetich - 14:46.16Aynadis Mebratu - 15:01.62Tsigie Gebreselama - 15:03.21Nozomi Tanaka - 15:06.78Elise Cranny - 15:15.31 inLong Sprints Event Group - Men's 200m Jereem Richards - 19.86Alexander Ogando - 19.86Muzala Samukonga - 20.23Steven Gardiner - 20.37Ryan Zeze - 20.43Jacory Patterson - 20.55Matthew Hudson-smith - 20.64Bryce Deadmon - 21.01Short Sprints Event Group - Women's 100m Melissa Jefferson-Wooden - 10.75Tamari Davis - 10.79Favour Ofili - 10.94Gabby Thomas - 10.97Jacious Sears - 10.98Brittany Brown - 11.06Kayla White - 11.08Daryll Neita - 11.16Long Distance Event Group - Men's 3000m Andrew Coscoran - 8:17.56Grant Fisher - 8:17.60George Mills - 8:17.77Cooper Teare - 8:18.08Dawit Seare - 8:18.73Ronald Kwemoi - 8:19.48Amon Kemboi - 8:20.16Sam Atkin - 8:21.35Long Sprints Event Group - Women's 400m Marileidy Paulino - 49.21Salwa Eid Naser - 49.33Alexis Holmes - 50.36Isabella Whittaker - 50.38Nickisha Pryce - 50.71Stacey Ann Williams - 50.76Amber Anning - 50.85Kendall Ellis - 52.51