Mathew Hanratty, 8 Aug 2017
Makwala says the 400m "was an American race but now we are taking it to Africa", but what do the numbers show.
Mathew Hanratty, 3 May 2017
If you want the glory of a fast time, don't go on the first leg.
Mathew Hanratty, 24 Mar 2017
Most indoor performers will improve outdoors, but it might be the slowest 400m runners who have the most to gain.
Pierre-Jean Vazel, 15 Aug 2016
Pierre-Jean Vazel breaks down the South African's race in Rio.
Mathew Hanratty, 28 Jul 2016
We look at the challenges ahead for the 200m and 400m world leader.
Pierre-Jean Vazel, 27 Aug 2015
See how the South African's world championship run in Beijing compares to Johnson's world record.