Illustrative time budget, not a fitness prediction. Check whether the goal fits your preparation and conditions.
10K / 50:00 — illustrative negative-split card Units: kilometers. Clock: elapsed from crossing start (chip time). 1 km 05:06 6 km 30:24 2 km 10:12 7 km 35:18 3 km 15:18 8 km 40:12 4 km 20:24 9 km 45:06 5 km 25:30 10 km 50:00 First 5K: 25:30. Second 5K: 24:30. Review at halfway; do not force a catch-up surge. Change the goal if effort, course or conditions no longer fit.
Use event instructions and your circumstances to decide whether to slow, stop or seek assistance. The card does not require a catch-up surge.