|No. 25 – Gunma Crane Thunders|
|Born||May 5, 1993|
|Listed height||6 ft 10 in (2.08 m)|
|Listed weight||220 lb (100 kg)|
|High school||Bishop Gorman (Las Vegas, Nevada)|
|NBA draft||2016 / Undrafted|
|2018–2019||Shimane Susanoo Magic|
|2019–present||Gunma Crane Thunders|
|Career highlights and awards|
Allen emigrated to the United States from Hungary at age 12 and played high school basketball at Bishop Gorman High School in Las Vegas. He chose Stanford and played for the Cardinal from 2012 to 2016. After earning first-team All-Pac-12 honors as a redshirt junior, Allen declared his eligibility for the 2016 NBA draft.
Allen was a member of the 2017 Boston Celtics Summer League team.
- FitzGerald, Tom (January 18, 2013). "Rosco Allen takes long road to Stanford". San Francisco Chronicle. Retrieved October 11, 2016.
- "Rosco Allen: Will enter NBA draft". CBSSports.com. Retrieved October 11, 2016.
- "El Rio Natura Monbus Obradoiro ficha a Rosco Allen". ObradoiroCAB.com (in Spanish). July 29, 2016. Retrieved October 11, 2016.
- "Rosco Allen, nuevo jugador del Iberostar Tenerife". canarias.net (in Spanish). July 13, 2017. Retrieved July 13, 2017.