Margaret Fefilova Styer (formerly Marharyta Fefilava; born 31 May 1997) is a Belarusian professional pool player from Minsk, Belarus. Fefilova has won a total of 29 Belarusian national women's championships, with an additional three national championships in mixed competitions against both men and women. She is the first player from Belarus to win a medal at the European Pool Championships, a bronze medal in the nine-ball competition in 2015. She also reached the final of the European Girls Championship in 2014, losing 3–6 to Kamila Khodjaeva. Fefilova is a regular player on the Euro Tour and the Baltic Pool League. In 2017, she became the number one ranked player on the Euro Tour for the first time after winning two Tour events, the Dutch Open and the Portugal Open. In 2019, she reached three finals, bringing her career total to six finals on the Euro Tour. Fefilova alongside Yana Shut were the first Belarusian billiard players to receive state funding. Career Junior career (2011–2014) Fefilova saw her first success in 2011 when she played in her first national eight-ball competition where she reached the semi-finals. The following year, she won her first national championship title in the junior women's championships in nine-ball and first participated in the European Girls Championships ten-ball competition, reaching the quarter-finals. In October, she won the final of the Belarusian eight-ball championship against Yana Shut. The following season, she succeeded in winning two competitions at the national women's championships. In the eight-ball final, she defeated Anastasiya Tumilovich 4–1 and in nine-ball, she won 5–0 against Natalya Kozlovsky. In early 2013, victories followed in the Belarusian under-18 championship and the nine-ball cup competition. Later that season she first competed in the nine-ball Baltic Pool League held in Tartu and reached the final where she won 7–4 against Agnė Jarušauskaitė. Shortly after, she also won the ten-ball national championship. In the 2013 European Girls Championships, Fjafilawa twice reached the quarter-finals. In September, Fefilova defeated Simona Milišauskaitė to win her second Baltic Pool League championship in Riga, Latvia. In March 2014, Fefilova became the Belarusian under-18 champion in the disciplines of both eight-ball and nine-ball. Fjafilawa played in the 2014 European Pool Championship, entering the main women's nine-ball competition for the first time, however, she lost to defending champion Jasmin Ouschan 8–7. She also entered the junior events, reaching the semi-final of the eight-ball competition, and reached the final