Pace, splits, finish times, and training zones. Find every calculator a serious runner needs, all created by runners and always free.
Course-aware splits with elevation and weather. Boston, NYC, Berlin, Chicago, London, Tokyo.
Open →Sub-20 5K to a 5-hour marathon. The exact pace, km and mile splits, and a strategy for your goal.
Open →VDOT, training zones, heart-rate zones. Where you are — and what to run on Tuesday.
Open →Chasing a goal time? Each guide gives the exact pace you need, km and mile splits, and a pacing strategy for race day.
Half marathon
Course-specific pacing guides: where each course bites, what to adjust relative to your goal pace, and how to race it phase by phase.
The flattest major on earth. Even splits, the Schöneberg rise, and a finish 400 m past the Gate.
Read the pacing plan →Flat and fast — if you survive the GPS canyon, the Michigan Ave grind, and Mount Roosevelt.
Read the pacing plan →Five bridges, the First Avenue surge trap, and the Fifth Avenue grind. Pace it on effort.
Read the pacing plan →| Split | Dist | Time | /km | /mi |
|---|---|---|---|---|
| 1 | 1.00 km | 4:30 | 4:30 | 7:15 |
| 2 | 2.00 km | 9:00 | 4:30 | 7:15 |
| 3 | 3.00 km | 13:30 | 4:30 | 7:15 |
| 4 | 4.00 km | 18:00 | 4:30 | 7:15 |
| 5 | 5.00 km | 22:30 | 4:30 | 7:15 |
| 6 | 6.00 km | 27:00 | 4:30 | 7:15 |
| 7 | 7.00 km | 31:30 | 4:30 | 7:15 |
| 8 | 8.00 km | 36:00 | 4:30 | 7:15 |
| 9 | 9.00 km | 40:30 | 4:30 | 7:15 |
| 10 | 10.00 km | 45:00 | 4:30 | 7:15 |