In 2013, she qualified for the Wuxi Classic as an amateur competitor, becoming the first woman to reach the final stages of a professional ranking snooker tournament.

Evans's only victory during her first two years on the professional tour came when she defeated Stuart Bingham in the last 128 of the 2023 Snooker Shoot Out, making her the first woman to win a televised match at a ranking event.

[7] Evans won her first world championship in 2005 with a 6–4 victory over Horsburgh in the final, which featured one frame that was replayed because of a problem with the scoring.

She also won the 2006 WLBSA mixed doubles title, partnering with Mark Allen to defeat Sonia Chapman and Matthew Couch 3–0 in the final.

[21] Ng led 4–3 before Evans won three frames in a row to take the match 6–4 for her eleventh world championship win.

[24] Evans won the 2019 Women's Tour Championship, held at the Crucible Theatre, defeating Mink Nutcharut in the semi-finals and Ng in the final.

[31] At the 2022 World Championship, Evans was the defending champion, but she lost 1–4 to Belgian player Wendy Jans in the quarter-finals, the first time she had not reached at least the semi-finals of the tournament.

[34] Evans lost in the semi-finals of the 2023 World Championship to 19-year-old Chinese tour debutant Bai Yulu, who recovered from 1–3 behind to clinch a 5–3 victory.

[37] Prior to her loss to Maria Catalano at the 2011 Northern Classic, she won a record 90 consecutive women's snooker matches.

[53][54][55] In the 2012–13 season, Evans won enough Q-School matches to earn a "top-up" place in the qualifying rounds for the 2013 Wuxi Classic, competing as an amateur.

In the next four world championships, she exited in the first qualifying round each year, losing 7–10 to Dominic Dale in 2018, 2–10 to Zhang Yong in 2019, and to Andy Hicks by 3–6 in 2020 and 2–6 in 2021.

[67] In the second ranking event of the season, the British Open, Evans was drawn in the first round against Mark Allen, her former partner and father of her daughter, with whom she had a strained relationship following a dispute over child support.

[70] Evans did not win any matches during her season on the tour, which ended with a 2–6 defeat to Lee Walker in the first round of qualifying for the 2022 World Snooker Championship.

[74] Evans's only victory during her two years on tour came at the 2023 Snooker Shoot Out (2022–23 season),[75] when she defeated Stuart Bingham by 60 points to 8 in their one-frame encounter in the last-128 round, becoming the first woman to win a televised match at a ranking event.

[80] In her qualifying group at the 2023 Championship League, Evans defeated Jimmy White 3–1 and drew 2–2 with Xu Si, but having lost 0–3 to Judd Trump, she missed out on progressing to the next stage.

[75] At the 2024 World Mixed Doubles, Evans and teammate Luca Brecel defeated Mark Selby and Rebecca Kenna 4–2 in the final, winning the event for the first time.

[82] On 12 September 2024, Evans lost to Mink Nutcharut 4–2 in the first round at the English Open in the first match between two female players on the professional World Snooker Tour.

In 2015, at age 29, Evans was a ten-time women's world champion, but was still living in her parents' home with her then nine-year-old daughter because she could not afford to move out.