 Complete the following phrase:  He has been a domit presence in African hammer throwing since his first African Championships in Athletics in 1998 where he took gold with a championship record throw. He then went on to claim four consecutive African titles between 20022008, improving his own record along the way. His performances at the All-Africa Games have been equally domit  he won his first title at the 1999 Games with a Games record and won twice more consecutively in 2003 and 