du Preez, Frik

Pace over time: 83 races and 13 splits from 1985 to 2025, ranging from 1.45 to 10.71 kilometres per hour, where higher is faster. A second, age-graded series is drawn above it; the gap between the two is the age credit.

• Actual pace
• Age-graded pace
• Split of a race already plotted

1 result is not on this chart. They are counted in every statistic above and listed in full below — backyard ultras carry a lap count instead of a pace, which is the number that means something in that format.