Mathias Kanda
Mirimi Mathias Kanda was a track and field athlete who competed for Rhodesia in the 1964 Summer Olympic men's marathon, finishing 51st and running 2:41.09 in the marathon. He was then selected to run in the 1968 Olympic team along with his countryman Bernard Dzoma, but this team was not allowed to compete in the Olympic Games for political reasons. Kanda running experiences during this time are detailed by his Australian coach, John Cheffers, in his book: A Wilderness of Spite.
Winning moments
Cheffers felt that Kanda was a medal hope in the Mexican Olympic marathon. In the last weekend in June 1968, Kanda won the Zimbabwe/Rhodesian Olympic Marathon trial in Bulawayo in 2:27:04.7 on a cold windy course that had an 8 kilometre raise at the end of the course. On 4 May 1968 Kanda also won a South African marathon championship at 5337 feet in a 2:27:24.8. Considering that both races were at significant altitude Kanda was well conditioned for running at Mexico City. His Bulawayo time would have taken 6th in the Mexico Olympic marathon. He won Republic of South Africa marathon championships in 1964, 1968 and 1969 and, as of 2013, tied with several others as a runner who has won the most marathon championships in South African running history.The altitude table below shows that Mathias was well conditioned to run at the 7300 feet of Mexico City.
| Location | Elevation in feet | Effective O2% | Oxygen Difference | Marathon Time | Marathon Date |
| Sea level | 0 ft | 21% | 0% | ||
| Bulawayo | 4500 ft | 17.5% | 67% | 2:27:04 | late June 1968 |
| Libanon Mine Track | 5337 ft | 17.1% | 75% | 2:27:24 | 4 May 1968 |
| Mexico City | 7300 ft | 15.8% | 100% | DNR | 20 Oct 1968 |
This table shows that the Bulwayo and Libanon runs were at 2/3 and 3/4 of the effective oxygen deficit that existed at Mexico City.