Born in Barbados, Dottin made her international cricket debut in 2008, when she was selected as part of the West Indies squad to tour Europe. Playing in the opening WODI of the tour, Dottin bowled two overs without taking a wicket, allowing eleven runs to be scored. In the West Indies reply, she top-scored with an unbeaten 33 as her team chased the total down in under 20 overs. She scored her first half-century in international cricket in her fourth ODI, making 66 having opened the batting against Netherlands. She completed the tour of Europe with 149 ODI runs at a batting average of 29.80, second among the West Indians in both areas, trailing Stafanie Taylor. She continued to open the innings during the tour of Sri Lanka, averaging 18.20, but struggled from the same position in the first two matches of the 2009 Women's Cricket World Cup, and after failing to make double figures in either match, was dropped down the batting order to number five. The move immediately paid off as she scored 51 in the next match, against hosts Australia and then 23 against both Pakistan and England in the following matches, though she finished the tournament with low-scores against India and Pakistan.
2010 World Twenty20
In the opening match of the 2010 ICC Women's World Twenty20, Dottin scored the first women's Twenty20 International century, scoring 112 not out against South Africa at Warner Park, St. Kitts. Coming into bat at number six in the tenth over, Dottin made her first 50 runs in 25 balls, and then moved from 50 to 100 in a further 13 balls. In total, she hit seven 4s and nine 6s in the innings, propelling the West Indies to a match-winning total. In addition to being the first century in women's Twenty20 Internationals, her 38-ball century is the fastest by any female batsman in a Twenty20 International. The fastest century scored for a male batsman is by Chris Gayle, who scored his century in just 30 deliveries in IPL 2013 against Pune Warriors India.
2018 World Twenty20
In October 2018, she was named in the West Indies' squad for the 2018 ICC Women's World Twenty20 tournament in the West Indies. In the West Indies' opening match of the tournament, against Bangladesh, Dottin took five wickets for five runs to take her first five-wicket haul in WT20Is. The West Indies went on to win the game by 60 runs, with Dottin named as the player of the match. She was the leading run-scorer and wicket-taker for the West Indies in the tournament, with 121 runs and ten wickets in five matches. Following the conclusion of the tournament, she was named as the standout player in the team by the International Cricket Council.
Growing up, she was also active and successful in track and field, winning medals for Barbados at international meetings. Starting at the age of 14 years, she competed on the youth level of the CARIFTA Games winning one silver in 2005, one gold and one silver in 2006, and three gold medals in 2007.
