At the second event, he beat Anthony Hamilton 4–3, James Wattana 4–2 and Sam Craigie 4–1 to reach the last 16, where he was edged out 3–4 by Rory McLeod.

[11][12] He earned a place in the EBSA Qualifying Tour Play-offs by finishing number 2 in the rankings and winning the Scottish Amateur Open.

[14][15] In the 2014–15 season, he qualified for the Australian Goldfields Open by edging past Joe O'Connor 5–4: it was his first win on the main tour in 18 months.

[16] In the second round of the Riga Open he recorded the biggest win of his career by knocking out world number one Neil Robertson 4–3, before losing by a reverse of this scoreline to Sean O'Sullivan.

[18] He did not win more than one match at any other event during the rest of the season until the World Championship, when he defeated Aditya Mehta 10–7 and Jack Lisowski 10–5.

He defeated Brandon Sargeant 4–0 and Elliot Slessor 4–3 at the English Open, then recorded a shock 4–2 win over Ding Junhui, a player ranked 105 places above him, despite having a high break of 34.

[31] During the 2020–21 season which was largely played behind closed doors due to the COVID-19 pandemic, Jones progressed to the quarter-finals of a ranking event for first time.

At the 2020 English Open, he recorded victories over Elliot Slessor (4–1), Jack Lisowski (4–3), Ben Hancorn (4–2), and compatriot Matthew Stevens (4–3) before losing 1–5 to John Higgins in the quarter-finals.

[35] At the next ranking event, the Gibraltar Open, he received a walkover against Vafaei, before defeating both Robbie Williams and Luca Brecel 4–3 in final-frame deciders.

[35] He then recorded impressive victories over former world champions Neil Robertson (4–1)[35] and Stuart Bingham (4–0)[35] to progress to his maiden ranking semi-final where he was defeated 4–2 by eventual tournament winner Robert Milkins.

[38] In the second half of the season, he recorded back-to-back last 16 finishes at the Shoot Out and the Welsh Open, where he was defeated by Chris Wakelin and Pang Junxu respectively.

[47] After a last 16 finish at his tournament, the Welsh Open (where he lost 0–4 to Dominic Dale),[46] he entered qualifying for the World Snooker Championship.

[49] Facing Judd Trump – one of the pre-tournament favourites – in the quarter-finals, Jones completed a 13–9 victory to progress to the semi-finals of the World Championship for the first time.