|Born||2 July 1995|
|Highest ranking||88 (June 2017)|
2015 Paul Hunter Classic
|Best ranking finish||Last 32 (2016 Northern Ireland Open, 2017 Welsh Open)|
In 2014 Boileau entered the EBSA European Under-21 Snooker Championships in Bucharest where he reached the final, before he lost 6–1 Oliver Lines. Two years following his disappointment in Bucharest, Boileau once again made it to the final where he defeated Brandon Sargeant 6–1 to win the 2016 EBSA European Under-21 Snooker Championship, as a result he was given a two-year card on the professional World Snooker Tour for the 2016–17 and 2017–18 seasons. His first win at the venue stage of a ranking event was at the Northern Ireland Open when he edged past Mike Dunn 4–3. Boileau then saw off Hamza Akbar 4–2, before losing 4–1 to Kurt Maflin. He overcame Hammad Miah 4–1 at the Welsh Open to set up a second round meeting with Shaun Murphy, who Boileau said inspired him to start playing snooker after he watched him win the World Championship in 2005. Boileau beat the world number six 4–2, but then lost 4–0 to Robert Milkins.
Performance and rankings timeline
|China Championship||Tournament Not Held||NR||LQ|
|Paul Hunter Classic||Minor-Ranking Event||1R||1R|
|World Open||LQ||Not Held||LQ||LQ|
|European Masters||Tournament Not Held||LQ||LQ|
|English Open||Tournament Not Held||1R||1R|
|Northern Ireland Open||Tournament Not Held||3R||1R|
|Scottish Open||NH||Not Held||1R||1R|
|Shoot-Out||Variant Format Event||1R||2R|
|World Grand Prix||NH||NR||DNQ||DNQ||DNQ|
|Gibraltar Open||Not Held||MR||1R||WD|
|Former ranking tournaments|
|Australian Goldfields Open||LQ||A||A||Not Held|
|Performance Table Legend|
|LQ||lost in the qualifying draw||#R||lost in the early rounds of the tournament
(WR = Wildcard round, RR = Round robin)
|QF||lost in the quarter-finals|
|SF||lost in the semi-finals||F||lost in the final||W||won the tournament|
|DNQ||did not qualify for the tournament||A||did not participate in the tournament||WD||withdrew from the tournament|
|NH / Not Held||means an event was not held.|
|NR / Non-Ranking Event||means an event is/was no longer a ranking event.|
|R / Ranking Event||means an event is/was a ranking event.|
|MR / Minor-Ranking Event||means an event is/was a minor-ranking event.|
- It shows the ranking at the beginning of the season.
- He was not on Main Tour.
- New players on the Main Tour don't have a ranking.
- The event was called the Riga Open (2014/2015−2015/2016)
- The event was called the Players Championship Grand Final (2013/2014−2015/2016)
Amateur finals: 4 (1 title, 3 runners-up)
|Outcome||No.||Year||Championship||Opponent in the final||Score|
|Runner-up||1.||2014||European Under-21 Snooker Championship||Oliver Lines||1–6|
|Runner-up||2.||2014||World Under-21 Snooker Championship||Hossein Vafaei||3–8|
|Winner||1.||2016||European Under-21 Snooker Championship||Brandon Sargeant||6–1|
|Runner-up||3.||2019||Irish Amateur Championship||David Morris||3–7|
- "WORLD RANKINGS After 2017 Kaspersky Riga Masters". World Snooker. Archived from the original on 2017-07-03. Retrieved 3 July 2017.
- "IMPERIAL BOILEAU GETS U21 CROWN FOR IRELAND". ebsa.tv. 13 February 2016. Archived from the original on 13 February 2016. Retrieved 14 February 2016.
- "Ireland's Josh Boileau takes European Under-21 title and turns professional". RTÉ Sport. 14 February 2016. Retrieved 14 February 2016.
- "Boileau delighted with 'special' win over Shaun Murphy at Welsh Open". RTÉ Sport. Retrieved 16 March 2017.
- "Josh Boileau 2016/2017". Snooker.org. Retrieved 16 March 2017.
- "Ranking History". Snooker.org. Retrieved 6 February 2011.