After studying law at Cairo University (Khartoum branch), Kigab embarked on a successful swimming career, representing Sudan internationally.

He competed in the Maratona del Golfo Capri-Napoli (Italy), Latakia International Swimming Race (Syria), and Canadian World Championships, among others.

In 1974, he won Sudan's Jabal Awliya race, one of the world's longest, and continued participating in national and international events, winning numerous medals.

Kigab later coached swimming in Canada and Saudi Arabia, and in 1996, he ran for Sudan's presidency, coming second to Omar al-Bashir.

[7][8] Kigab started his career as a percussionist and choir with Naam Adam [ar], Ishag Karamallah and Zaki Abdul Karim in 1962.

In 1967, he joined the Graduate Club and participated in the short-distance and water polo championship, then he went to long-distance swimming alongside Fathi Bayram, Huda Hamdi, Hiba Mohamed Ali [ar], Mona Karrar, and Sara Gadalla Gubara, and has proven his worth in endurance and sprint races.

In 1969, he was chosen to represent Sudan in the Maratona del Golfo Capri-Napoli race (36 km) in Italy, along with his colleague Mohamud Mustafa and Fadel Suleiman.

[11] In 1978, Kigab was ordered by President Nimeiry to cross the English Channel, but he gave up 2 miles (3.2 km) from the French coast.

[6] James Kegley, an Honour Swimmer in the International Marathon Swimming Hall of Fame, remembers Kigab running to him while screaming "Sadat has been shot!".

[25] On 29 July 1984, Kigab participated in the Traversée internationale du lac St-Jean in Quebec, Canada,[26] but did not finish.

[31] In 1996, according to Kigab, he was visiting a relative in Khartoum and while watching the Sudan TV, listening to an interview with Colonel Mohamed Al-Amin Khalifa, then president of the National Transitional Council (1992-1996),[33] talking about the requirements to run elections, for example being an adult, sane, and Sudanese citizen..

[34] Kigab was married to Mashair Suwar al-Dhahab from Al-Ghaddar village [ar], Northern State, Sudan.