Free calculator · The Saltmarsh Pace Scale

Cross Country Training Pace Calculator

Enter one recent 5K. Get every cross country training pace as a P number: Easy, steady, threshold, 5K pace and strides, per mile, per kilometer and per lap. Plus the split for every rep, and how far each timed rep should go.

Built by Coach Jason Saltmarsh · USATF Level 2 Endurance Coach · 31 state champions coached

Times like 18:40 or 21:05. A 5K on a flat, fast course gives the truest paces.

P100 · estimated mile pace
5:16per mile
19.6 s per 100m1600m estimate 5:14.2Entered as 5K
5K race pace 5:48 per mileP90

Training gears

GearNamePer milePer kmPer 400mHow it feels
EasyEasy7:16+4:31+1:48.4+Full sentences, easily. The bulk of all mileage.
P75Steady6:354:0598.2Full sentences, with rhythm. Comfortably fast.
P80Threshold6:193:5694.3Short phrases only. Comfortably hard.
P905K pace5:483:3686.4A word or two. Hard, controlled reps of 2:30 to 4 min.
P100Strides5:163:1678.5Mile pace, relaxed. A 20 s stride covers about 100m.
HillsHill sprints———8–12 s up a steep hill, walk all the way down. No pace.

How a session is written

  • 4 × 6 min P80, 1:00 jog: reps × time, gear, recovery.
  • 5 × 1000m P90, 3:00 jog: reps × distance, gear, recovery.
  • strides P100: 20 s at mile pace, relaxed.
  • full: walk or jog until breathing settles.

The talk test wins

When the pace and the talk test disagree, the talk test wins. Heat, hills, mud and growth spurts don’t read charts. On a hilly loop, run the effort, not the split.

Reset rule

Reset P100 after every race. Never from a workout. Never from a goal. Fitness moves fast in a cross country season.

Rep times

Reps up to 400m in seconds; longer reps in minutes and seconds, rounded to the nearest second.

Timed reps: how far each one goes

Distance covered at each gear, rounded to 10m. Use it to mark a loop on grass or check a rep on the track. A dash marks a rep length that gear isn’t built for.

How to use the calculator

  1. Enter a real race. Use the athlete’s most recent 5K. A cross country time works; be honest about the course. A 3-mile, 4K, 2-mile or track time converts too.
  2. Read the gears. Each gear shows its pace per mile, per kilometer and per 400m, with the talk test that goes with it.
  3. Get the splits. Rep times covers every rep from 100m to 5000m. Timed reps shows how far a 3-minute or 6-minute rep should go. Print or copy the pace card for the clipboard.

What the P numbers mean

In cross country, current 5K race pace is P90. P100 is an estimate of current mile race pace: 5K pace divided by 1.10. Every other gear is a percent of P100. P80 is 20% slower than P100. Easy running is P62 or slower.

Real 5K race pace lands between P89 and P92 for almost every high schooler, so the calculator sets it at P90 and works out the rest. For an 18:00 5K runner, P90 is 5:48 per mile and P100 is 5:16. P75 steady is 6:35. P80 threshold is 6:19. Easy is 7:16 or slower. The same scale runs the P-Scale track plans, so the numbers carry from August to April.

Sample cross country workouts, with splits

Real sessions from the 22-Week XC Season Blueprint. Splits shown for 18:00 5K. Change the time above and they update.

  • 25 min P75 steady 6:35/mi · 3.8 mi + strides P100 19.6 s/100mSteady
  • 4 × 6 min P80 6:19/mi · 1,530m, 1:00 jogThreshold
  • Progression: Easy 7:16+/mi into P75 6:35/mi, finish at P80 6:19/miProgression
  • 5 × 3:00 P90 5:48/mi · 830m, 2:30 jog5K pace
  • 5 × 1000m P90 3:36, 3:00 jog5K pace
  • Race sim: 2 × 1.5 mi P80 9:29 on a courseRace rehearsal
  • 6 × 400m P90 86.4, full; strides P100 19.6 s/100mChampionship
  • Easy 7:16+/mi + 8 × 10 s HillsHills

Using the paces

What race time should I enter?

The athlete’s most recent 5K, from the last month or so. A cross country time is fine. Be honest about the course: a slow, hilly or muddy course makes every pace too slow, so use a faster race if they have one. Use a race they actually ran, never a goal time or a workout.

How fast is easy pace?

P62 or slower. For an 18:00 5K runner that is about 7:16 per mile or slower. Easy has no slow limit. Full-sentence conversation is the test, and at least three of every four miles should pass it.

Why is 5K pace P90 and not P100?

P100 is mile race pace, all year, for every event. A 5K is about 10% slower than a mile for almost every high schooler, so this calculator sets current 5K pace at P90 and estimates P100 from it. That is why the interval gear is P90: hard, controlled reps at current 5K pace.

When should I update the time?

After every race. Cross country fitness moves fast in September and October, so an August time is stale by the first invitational. Never update from a workout, and never from a goal.

What about hills, heat and mud?

Run the effort, not the split. These paces assume flat, firm ground and decent weather. On hills, in heat or in mud, the talk test sets the pace. The Running Heat Calculator shows how much to slow down on hot days.

How do I use the timed reps?

Most cross country threshold work runs on time: 4 × 6 minutes, not 4 × 1600m. The Timed reps tab shows how far each rep should go at each gear. Mark a loop that long on grass, or use it to check that a group isn’t creeping from P80 toward P90.

How the P-Scale compares

How is the P-Scale different from Daniels or Canova?

Daniels supplies the physiology and the safety limits. Canova supplies the percent-of-race-pace ladder. The Norwegian Method supplies the split between steady running and threshold. The P-Scale puts all of it into one number for every pace: a percent of the athlete’s current mile.

DanielsCanovaP-Scale
What 100% isNo single anchor; a recent race sets a fitness score and his tables give each zone its own paceRace pace for the event the athlete is preparing forCurrent 1600m race pace, all year. In cross country it comes from a real 5K, which sets P90.
How paces are namedLetters: E, M, T, I, RPercentages of race paceEasy and P numbers. Cross country uses P75, P80, P90 and P100.
Session limitsCapped by weekly mileageNot published; built for elite adultsDaniels’ limits: P80 near 10% of weekly miles, P90 near 8%
Built forAll levels, organized around physiologyElite professionals, months-long build-upsHigh school runners: a summer base and a 12-week season
Why one scale for cross country and track?

Every pace in either season is a P number off the same mile. In cross country, 5K race pace is P90, so athletes keep one set of numbers from July to June instead of learning a new scale each season. An athlete who learns P80 in August still knows it in April.

Where does P75 come from?

It is the Norwegian Method’s LT1: steady running just under threshold, with no recovery cost. P80 is LT2, Daniels’ threshold. Splitting the two keeps most of a high schooler’s quality work below the red line.

Is the P-Scale backed by research?

Not as a package. No study tests the P-Scale itself, as none tests most coaching systems. Each part comes from methods with long track records: Daniels’ race-based paces and limits, Canova’s percent-of-pace progression and the Norwegian split between steady running and threshold.

The 22-Week XC Season Blueprint · $59

A 10-week summer base and a 12-week season, built on these gears. Every day written out for four levels, from Rookie to No Summer, with three championship weekends. Its pace calculator writes each day’s paces for your whole roster.

See the Blueprint

More cross country tools

The Saltmarsh Pace Scale (the P-Scale) sets every gear as a percent of current 1600m race pace: pace = P100 × (2 − P/100). In cross country, current 5K race pace is P90, so P100 is 5K pace divided by 1.10. Any other race, from 1500m to 3 miles, converts to a 5K first with the Daniels–Gilbert race-equivalence equations. Paces assume flat, firm ground.