ilham was born William Biwott Tanui and whilst running for Kenya in 2009
 was one of the Kenyan team that set a world record for the 4 x 1500m
relay at the 2009 Memorial Van Damme Golden League meeting 
in Brussels, Belgium **. He took Turkish citizenship in June 2011.
He is pictured above during the 1st. round of the 1500m.
 
    
        
            | 
 | 
        
            | Men's 1500m Final. Result
 | 
        
            | 1. Taoufik MAKHLOUFI |  | ALG |  | 3:34.08 | 
        
            | 2. Leonel MANZANO |  | USA |  | 3:34.79 | 
        
            | 3. Abdalaati IGUIDER 
 |  | MAR |  | 3:35.13 | 
        
            | 4. Mathhew CENTROWITZ 
 |  | USA |  | 3:35.17 | 
        
            | 5. Henrik INGERBRITSEN 
 |  | NOR |  | 3:35.43 | 
        
            | 6. Mekonnen GEBREMEDHIN 
 |  | ETH |  | 3:35.44 | 
        
            | 7. Silas KIPLAGAT 
 |  | KEN |  | 3:36.19 | 
        
            | 8. Ilham Tanui OZBILEN 
 |  | TUR |  | 3:36.72 | 
        
            | 
 | 
    
PERSONAL BEST TIMES.
800m         	1:44.00	  	Mersin (TUR)	29 JUN 2013	NR
1000m       	2:15.08	  	Mestský Stadion, Ostrava (CZE)	17 JUN 2014	NR
	1500m       	3:31.30	  	Stade Louis II, Monaco (MON)	19 JUL 2013	NR
	One Mile    3:49.29   		Bislett, Oslo (NOR)	03 JUL 2009	WU20R, AU20R
	3000m      	7:56.30	  	x-bionicsphere, Šamorín (SVK)	17 JUN 2017
4x400m     	3:07.68   		Letzigrund, Zürich (SUI)	16 AUG 2014
4x1500     14:36.23   		Boudewijnstadion, Bruxelles (BEL)	04 SEP 2009 (** WR running for Kenya)