Each displayed time is rounded independently to the nearest second. The finish uses the exact target.
Your target and its pace
A 4:15:00 finish over 42.195 km corresponds to 6:03/km or 9:44/mi when shown to the nearest second. This page uses an even pace: equal distances receive equal shares of the original target time.
A 4:15:00 target gives an equal-distance halfway time of 2:07:30. The 20 km checkpoint comes before halfway. Both are useful markers, but they should retain separate distance labels on the printed reference.
Plan summary
Measure
Value
Distance
42.195 km
Exact target
4:15:00
Displayed pace / km
6:03
Displayed pace / mile
9:44
Halfway distance
21.0975 km
Halfway time
2:07:30
Check the cumulative splits
The cumulative split table includes each whole kilometre, halfway if it is a separate marker, and one exact finish. These values are elapsed time since the start. Changing the display unit relabels those same checkpoints; it does not move them to whole-mile markers.
Read the final segment
The last whole-kilometre checkpoint before the finish is 42 km at 4:13:49. The remaining 195 m takes 0:01:11 when rounded separately. Adjacent displayed values can differ by one second from a separately rounded segment; the original target is not adjusted to hide that effect.
Edit the plan or make a band
Open this target in the split calculator to change the marker interval or display unit. In the pace-band maker, choose A4 or Letter, a band size and a short label. Preview all strips and check the finish before exporting. The preset starts at an even allocation; any two-half change should be an explicit choice.
