Ahmad Hassan Abdullah (, born Albert Chepkurui on July 29, 1981 in Kaptarakwa, Kenya) is a long-distance and cross country runner, now representing Qatar after his switch from Kenya in 2003. Other runners who have made the same switch include Saif Saeed Shaheen. Abdullah has won bronze medals at the 2005 IAAF World Cross Country Championships and the 2004 and 2008 editions of the IAAF World Half Marathon Championships. He represented Qatar over 10,000 metres at the 2008 Beijing Olympics and three times at the IAAF World Championships in Athletics. He is a two-time Asian champion in the 10,000 m (2003 and 2007) and holds the Asian record with his personal best time of 26:38.76 minutes. Career Abdullah has competed numerous times at the IAAF World Cross Country Championships. He made his first appearance as a junior athlete at the 1999 race, finishing in fifth place. In the senior section, he was sixth in the 2001 short race and 2002 long race, before missing 2003 amid his switch to represent Qatar. He returned in 2004 to take fourth in the short race. In 2005 he race in both races and was the long race bronze medallist and eighth in the short race. He performed less well after that, with finishes ranging from eighth to 18th in the period from 2006 to 2010. He has enjoyed success at the Asian Cross Country Championships, winning the individual and team gold medals at the 2007 and 2009 competitions. He won both the individual and team titles at the 2008 edition of the World Military Cross Country Championships. He has competed on the Spanish cross country circuit and won the Cross Zornotza in 2005. On the track Abdullah has typically competed in the 10,000 m. He holds the Asian and Qatari records for the distance with his personal best of 26:38.76 minutes, set at the Memorial Van Damme meeting in 2003. He was the bronze medallist in the event at the 2001 Goodwill Games, In his first outings as a Qatari athlete he came fourth in the 10,000 m at the 2003 World Championships in Athletics, before taking the regional title in the event at the 2003 Asian Athletics Championships. At the 2007 Asian Athletics Championships, he won a second Asian title and also a silver medal over 5000 metres behind his compatriot Felix Kibore. He ran at the 2007 World Championships in Athletics,