[2] Ngamole finished in tenth position in the men's 10,000 metres at the Athletics at the 2007 All-Africa Games in Algiers, Algeria.

[3] He finished third in the 2008 South Africa Marathon Championships in a then personal best time of two hours, fifteen minutes and eight seconds.

[2] At the 2009 World Championships in Athletics held in Berlin, Germany, Ngamole competed in the men's marathon; he finished 22nd in a season's best time of two hours, 16 minutes and 20 seconds in a race won by Abel Kirui of Kenya.

[5] He competed in the men's marathon at the 2011 World Championships held in daegu, South Korea, finishing in 46th position in a time of two hours thirty minutes and one second.

[5][8] In July 2012 Ngamole was selected to represent South Africa at the 2012 Summer Olympics in the men's marathon, where he competed alongside compatriots Lusapho April and Stephen Mokoka.