Endurometry
The wrap band is 40 mm wide and wrist + 2.5 cm long (M = 19.5 cm). Print at 100%, wrap once, tape the tab — do not cut tiles. Default 4:00 marathon, every 5 km: even 5:41/km, 10 km at 56:53, last row 42.195 km at 4:00:00. Read the marker, not the watch track.
Last updated October 5, 2026
A pace band exists so you are not racing a bouncing GPS average for three hours. Two tools on this site print splits. The card-grid generator is even-only cards (default marathon 4:00, per km). The printable wristband is one strip you wrap: even, negative or positive, 1 / 2 / 5 / 10 km or miles, sized to the wrist. What −/+ means: negative vs positive split.
Geometry and the default band
Width is always 40 mm. Length is S 15 / M 17 / L 19 cm plus 2.5 cm overlap — M paper is 19.5 cm. Default: 42.195 km, 4:00:00, kilometres, even, interval 5, wrist M. Even pace 5:41/km (9:09/mi). Nine rows: 5, 10, … 40 km and 42.195 km / 4:00:00, not a fake 45 km. km 10 even clock is 56:53. Font shrinks to fit; if 1 km rows become unreadable, switch to 5 km.
Print once; do not tile
Print at 100% scale (no “fit to page”). Wrap once, tape the 2.5 cm tab. There is nothing to cut into a puzzle. The on-screen band is the same geometry as a Pro print job; the browser print dialog can save a PDF draft. Share links refill the form. Dual-unit tables and a VDOT strip live on the pace chart — that embedded band is even only.
Race morning: markers beat GPS
At each certified kilometre (or mile) read the left-hand clock. If the watch is 15 seconds ahead at 5 km, the course/GPS is usually long, or you are fast — believe the marker. Walk-throughs at drinks do not appear on the band. Hills and wind do not either. Build even arithmetic by hand: how to calculate race splits.
Pick the interval for the distance
Marathon at 1 km is 43 lines and tiny type on an M wrist — that is why 5 km is the default. A 5K or 10K can use 1 km. Miles on a marathon are ~26 whole miles plus ~0.2 mi leftover; a half’s last label is 21.0975 km, never 42.195. Night-before kit: race-day checklist. Methodology: pace.
Related Tools
Printable Pace Wristband
Generate a single-column pace wristband sized to your wrist — no cutting, just wrap it once. Pick even / negative / positive split and 1/2/5/10 km (or mi) intervals, then print at 100%.
Pace Band Generator
Generate a printable pace band with the time you should pass every kilometre or mile at your goal finish time.
Pace Chart Generator
Enter a goal finish time and get a pace chart in both min/km and min/mile, a speed-to-pace conversion table, your tempo pace and a printable wristband.
Related guides
Negative vs positive split
Even, negative and positive splits on the same 4:00 marathon. What ±5% on Endurometry’s wristband actually prints, why a fast first 10 km usually costs more than it banks, and why leftover kilometres can miss 4:00:00 by half a minute.
How to Calculate Race Splits
Turn a goal finish into cumulative kilometre or mile splits, including the leftover 42.195 km row, and how that differs from a wrist pace band.
How the numbers are calculated
Pace, speed and distance · Rounding and displayed precision · Sources
Frequently Asked Questions
Do I cut the band into tiles?
No. One strip, wrap once, tape the overlap.
Why every 5 km by default?
Readable type on a 17 cm wrist. Forty-three 1 km rows force small fonts.
Even or negative on the wrist?
Even if you have not practised a finish surge. Negative is our ±5% ramp on this page’s sister guide, not a Boston template.
Does printing need Pro?
Generate on screen is free. A dedicated print button may be gated; use the browser print dialog on the preview for a draft.
Want a new tool or fix?
Tell us which calculator, pace chart or fix would help — we build what runners ask for. Replies usually come back in 1–2 days.