|No. 15 – Science City Jena|
|Born||July 17, 1980|
|Listed height||6 ft 8 in (2.03 m)|
|Listed weight||220 lb (100 kg)|
|High school||Gadsden (Gadsden, Alabama)|
|NBA draft||2003 / Undrafted|
|2006–2007||Bayer Giants Leverkusen|
|2017–present||Science City Jena|
|Career highlights and awards|
Growing up in Gadsden, Alabama, Allen attended Gadsden High School before his time at Southern Union State Community College in Wadley, Alabama. In 2000, he was named Alabama Junior Community College Conference (AJCCC) Player of the Year and transferred to Ole Miss following his sophomore year.
He had to redshirt the 2000-01 season due to tendonitis in his left knee. Allen saw action in 60 games with the Ole Miss Rebels between 2001 and 2003, averaging 8.6 points and 5.4 rebounds per contest.
Allen launched his professional basketball career in Iceland, playing for Keflavík in the 2003-04 campaign. He was a key player in Keflavík's double-winning campaign (national championship and cup competition), turning in averages of 23.4 points and 10.5 rebounds in league play. In eight games of the FIBA Europe Cup (FIBA EuroCup Challenge), he averaged 26.6 points and 9.4 boards a contest.
In the following years, Allen made his mark in the German Basketball Bundesliga, playing for BG Karlsruhe, Bayer Giants Leverkusen, the Skyliners Frankfurt and Alba Berlin. He garnered Eurobasket.com All-German Bundesliga Forward of the Year honors in 2008 and was a Eurobasket.com All-German Bundesliga First Team selection in 2008, 2010 and 2011. He reached the Bundesliga finals with Frankfurt in 2010 and with Berlin in 2011. Over the years, Allen made multiple appearances in international competitions such as the EuroCup, the FIBA EuroChallenge and the FIBA Europe Cup (FIBA EuroCup Challenge).
After spending the 2012-13 season with Belgian powerhouse Spirou BC Charleroi, Allen returned to Germany, enjoying stints with Eisbären Bremerhaven, Basketball Löwen Braunschweig and SC Rasta Vechta. He was part of Vechta's Bundesliga promotion-winning side in 2016. At the end of the 2016-17 Bundesliga season, his Vechta team had to accept relegation from the German top-tier. Allen signed with another BBL team, Science City Jena on May 23, 2017.
- Emeritus, Jimmy Smothers Sports Editor. "JIMMY SMOTHERS: Allen returns to Gadsden during break from pro basketball". Gadsden Times. Retrieved April 16, 2017.CS1 maint: Extra text: authors list (link)
- "Ole Miss Men's Basketball Announces Signing Of Derrick Allen". Retrieved April 16, 2017.
- III, Bill Lumpkin. "Derrick Allen ready for homecoming". Gadsden Times. Retrieved April 16, 2017.
- "NCAA Statistics". web1.ncaa.org. Retrieved April 16, 2017.
- "KKÍ.is". gamli.kki.is. Retrieved April 16, 2017.
- "Derrick Allen | FIBA Europe Cup Men (2004) | FIBA Europe". www.fibaeurope.com. Retrieved April 16, 2017.
- "BBL_2007-2008 Basketball League GERMANY - eurobasket.com". www.eurobasket.com. Retrieved April 16, 2017.
- "BBL_2009-2010 Basketball League GERMANY - eurobasket.com". www.eurobasket.com. Retrieved April 16, 2017.
- "BBL_2010-2011 Basketball League GERMANY - eurobasket.com". www.eurobasket.com. Retrieved April 16, 2017.
- "ALLEN, DERRICK - Welcome to EUROLEAGUE BASKETBALL". www.euroleague.net. Retrieved April 16, 2017.
- "Science City verpflichtet mit Derrick Allen perfekten Mix aus Erfahrung und Qualität" (in German). Retrieved May 23, 2017.