At the World Athletics Championships, Miller-Uibo won silver medals in the 400 m in 2015 and 2019, and a bronze at the 200 m in 2017 when she also placed fourth at her longer distance. In 2022, she won her first world outdoor and indoor 400 m titles. She holds North American records in the 400 m both outdoors and indoors, set in October 2019 and February 2021, respectively. Her marks of 48.36 (improved at the Tokyo Games) and 50.21 seconds place her respectively sixth and joint eighth on the world all-time list.[2] She holds world bests over the 300 metres outdoors and indoors.
Miller-Uibo holds the world's fastest women's marks in straight races of 150 m and 200 m. Her personal best of 21.74 s for the 200 m is a Bahamian national record. She won several national titles in both her disciplines and the NCAA Division I indoor title for the Georgia Bulldogs and Lady Bulldogs.
Early life
Of Afro-Bahamian heritage, Miller-Uibo was born in a Christian home to Mabelene and Shaun Miller in Nassau, Bahamas, the granddaughter and niece of pastors, on 15 April 1994.[3] She has a personal faith and trust in God.[4] Her sister is Shauntae-Ashleigh Miller, Miss Universe Bahamas 2020.
In the following year, Miller-Uibo won the 2011 World Youth Championships in Athletics with a time of 51.84, becoming the first athlete ever to hold both the U20 and U18 championship 400 m titles concurrently.[6] She returned to defend her 400 m title at the 2011 CARIFTA Games, but was disqualified in the final. She also failed in her defence at the 2012 World Junior Championships in Athletics, trailing in fourth. However, she won 200 m and 4 × 400 metres relay silver medals at the 2012 CARIFTA Games. In her last age category competition, she won three gold medals (200 m, 400 m, 4 × 100 metres relay) at the 2013 CARIFTA Games and was given the Austin Sealy Award as the best athlete of the tournament.
The 2015 season marked her first impact at the Diamond League, as she won the 400 m at the top level Athletissima and Memorial Van Damme meets. Miller-Uibo won the silver medal in the 400 m at the 2015 World Championships that year. She also ran with the Bahamian women's 4 × 400 m relay team in the heats at that competition and set a Bahamian national record of 3:28.46 minutes.
At the 2017 Prefontaine Classic, Miller-Uibo became the first Bahamian woman to run under 22 seconds in the 200 m, improving her own national record to 21.91 seconds.[13] On 4 June 2017, she set the 200 metres straight world record of 21.76 s, greatly improving the previous record of 22.55 s set by Allyson Felix.[14] At the 2017 World Championships in London, she won the bronze medal in the 200 m event and finished fourth in the 400 m final. That same year, Miller-Uibo became the first Bahamian ever to win a Diamond League title as she claimed both the 200 m and 400 m titles.
Having dominated the 200 m during 2018 and 2019 and clocking a world-leading time in the 400 m in 2018, Miller-Uibo won the 400 m silver medal at the 2019 World Championships in Athletics in Qatar, running the tenth fastest time in history, a national record of 48.37 seconds.[15][16] The winner of the event, Salwa Eid Naser, was provisionally suspended by the Athletics Integrity Unit in June 2020 for missing four anti-doping tests in 12 months, the last of which was in January 2020.[17]
On 13 February 2021, Miller-Uibo broke the NACAC indoor 400 m record with a time of 50.21 seconds, set at the New Balance Indoor Grand Prix in New York.[1] On 4 April, she opened her outdoor season with a world-leading time of 22.03 s, her fastest ever 200 m opener, set at the Pure Athletics Spring Invitational in Clermont, Florida.[18]
In March 2022, she claimed her first world title as a senior, winning the women's 400 m event at the World Indoor Championships in Belgrade with a time of 50.31 s, after her bronze indoor debut in 2014.[19] Later that year in July, Miller-Uibo went on to secure her first senior world outdoor title at the World Championships Eugene 2022 in a time of 49.11 s, winning by nearly half a second in leading a Caribbean sweep. Afterwards, she revealed that she is looking forward to changing her main discipline to the 200 metres and possibly heptathlon.[20][21]
Personal life
Miller met Maicel Uibo, an Estonian decathlete who won silver at the 2019 World Championships in Georgia, and the pair married in 2017.[22] On 4 February 2023, she announced her first pregnancy via Instagram.[23] The baby, a son named Maicel Uibo Jr, was born on 20 April.[24]
^Miller competed in the under-20 (U20) category for the 4×400 m relay.
^Miller ran for the Bahamian team in the semis and helped them qualify for the final, but she was replaced with another runner in the final; The squad that ran in the final finished 6th.
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