Bertus, Johannes

Pace over time: 8 races and 1 split from 2015 to 2023, ranging from 5.32 to 11.62 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.