Sub-1:15 10K

A sub-1:15 10K means holding 12:04 per mile (7:30 per kilometre) for 6.2 miles — a 24.7 VDOT performance. Back here the 10K is a patience race: the pace is yours from the first kilometre, and the job is simply never to give it away.

Pace needed
12:04
per mile
Pace needed
7:30
per kilometre
VDOT required
24.7
Daniels fitness score

Mile-by-mile splits for 1:15:00

A 10K gives you no room for a strategic error and just enough room for a tactical one. The even-split table holds 12:04 per mile to a 1:15:00 finish, with 37:30 at 5K. The most common way to miss this goal is to run the first mile eight seconds fast and spend miles four through six paying for it at compound interest.

The negative-split table opens at 12:11 per mile, turns 5K in 37:53, then closes at 11:57. For most runners this is the higher-percentage race: the opening pace feels controlled rather than committed, and the finish is a decision you get to make rather than one made for you.

Even splits — 12:04 per mile

Even mile splits for a 1:15:00 10K
MilePaceSplitElapsed
112:0412:0412:04
212:0412:0424:08
312:0412:0436:13
412:0412:0448:17
512:0412:041:00:21
612:0412:041:12:25
6.212:042:351:15:00

Even pacing: 12:04 per mile for all 6.2 miles, finishing in 1:15:00.

Slight negative split — 12:11 out, 11:57 home

Negative-split mile splits for a 1:15:00 10K
MilePaceSplitElapsed
112:1112:1112:11
212:1112:1124:23
312:1112:1136:34
411:5911:5948:33
511:5711:571:00:30
611:5711:571:12:27
6.211:572:331:15:00

One percent either side of even: 12:11 per mile through halfway (37:53), then 11:57 home. Same 1:15:00 finish. The mile that straddles halfway blends both paces.

Per kilometre — 7:30 per km

Even kilometre splits for a 1:15:00 10K
KmPaceSplitElapsed
17:307:307:30
27:307:3015:00
37:307:3022:30
47:307:3030:00
57:307:3037:30
67:307:3045:00
77:307:3052:30
87:307:301:00:00
97:307:301:07:30
107:307:301:15:00

Even pacing in metric: 7:30 per kilometre across 10.0 km.

Are you ready for a sub-1:15 10K?

Equivalent race performances at VDOT 24.7
DistanceEquivalent timePace /miPace /km
5K36:0011:357:12
10K — your goal (1:15:00)1:14:5912:047:30
Half Marathon2:45:3012:377:51
Marathon5:37:2212:528:00

Equivalent times are computed from the rounded VDOT of 24.7, so the 10K row lands within a few seconds of 1:15:00 rather than exactly on it. That is rounding, not a different prediction.

To break 1:15:00 you need 12:04 per mile, and you should be racing about a 36:00 5K, which projects to a 2:45:30 half marathon. Those are checkpoints, not entry requirements — the 10K back here is less about the speed you own than about how evenly you can spread it across 6.2 miles.

The detail worth knowing: your race pace of 12:04 sits within a handful of seconds of your threshold pace of 11:59, and you will be out there holding it for a long time. That is the whole game — an extended negotiation with a pace that never feels free. The preparation is friendly, though: steady tempo work near 11:59, easy days honestly easy at 14:16, and one run a week that simply lasts longer than the race will. Do that for a season and 1:15:00 stops being a barrier and becomes a split.

Sub-1:15 belongs to the run-walkers, and it belongs to them on merit: at 7:30 per kilometre the strongest race plans back here are built from deliberate intervals — run the minutes you planned, walk the ones you scheduled, repeat until the finish arrives. Brisk walking covers a mile in fifteen-odd minutes; folding purposeful running into it is exactly how a 12:04-per-mile average gets built. The training mirrors the race: pattern rehearsal at 14:16 or easier, one long outing a week, and a written plan on race morning. The clock at 1:15:00 reads the average and nothing else.

Where do you stand right now?

Enter a race you have actually run and this will tell you where you stand against the 24.7 VDOT a sub-1:15 10K requires — your score, the target, and the gap. Nothing is stored or sent anywhere.

Training paces for a sub-1:15 10K

These are day-one paces for the 24.7 VDOT behind a sub-1:15 10K. The one that matters most is the easy pace of 14:16 per mile — slower than you think it should be, and the single biggest reason people arrive on race day healthy instead of injured.

Daniels training paces at VDOT 24.7
Pacemin/mimin/kmWhere it is used
Easy14:168:52Most of your week
Marathon12:528:00Race-pace work
Threshold11:597:27Tempo / cruise intervals
Interval11:076:55VO₂max work
Repetition10:276:30Speed and form
Recovery17:0010:34Shake-out jogs

Easy pace is a range rather than a point — Daniels defines it as 59–74% of VO₂max, which for the fitness behind a sub-1:15 10K runs from 13:41 to 16:10 per mile. The single easy figure below is the 70% value.

Why Not — the app

Paces that move when you do.

The table above is a static snapshot of the VDOT 24.7 behind a sub-1:15 10K. Why Not recalculates the same six paces after every run you log — pulling them tighter as you get fitter, easing them off when you are cooked, and rebuilding the plan around the weeks life actually gave you.

Build my sub-1:15 plan

Sub-1:15 10K FAQ

12:04 per mile, or 7:30 per kilometre, for 6.2 miles — 5K passed at 37:30. A slightly cautious start at 12:11 closing to 11:57 reaches the same 1:15:00.

VDOT 24.7 — the one score every pace and equivalent on this page is computed from.

Honest but steady: 12:04 sits within a few seconds of your threshold pace of 11:59, held for a long stretch. It should feel like work you are managing, never a sprint you are surviving.

Yes. The finish clock reads the average, and 12:04 per mile is an average — planned walks with purposeful running between them build it as legitimately as continuous running does.

Mostly easy running at 14:16 per mile (13:41–16:10), one steady tempo near 11:59 a week, and one run that outlasts the race. That modest recipe is what moves 1:15:00.

Every number on this page is computed from our own implementation of the Daniels–Gilbert formulas published in Daniels' Running Formula (Jack Daniels & Jimmy Gilbert) — the same library the Why Not app runs. Nothing is transcribed from the book's tables, and this site is not affiliated with or endorsed by the authors. Equivalent times assume you train appropriately for the target distance; that caveat is Daniels' own.

Why Not — the app

A coach for the price of a coffee run.

A human marathon coach runs $100 to $300 a month and rebuilds your plan when you email them. Why Not runs the same Daniels VDOT engine behind every number on this page and adapts after every workout. A full year of the app costs less than the cheapest month of human coaching.

Start 7 days free
7-day free trial · $9.99/month · $79.99/year · iPhone & Apple Watch