Sub-19 5K

Mile-by-mile splits for 19:00

Five kilometres is short enough that pacing feels like a formality and long enough that it absolutely is not. The even-split table holds 6:07 per mile to 19:00, passing halfway at 9:30. Go through the first mile more than a few seconds under and the third mile stops being a race and becomes damage control.

The negative-split table opens at 6:11 per mile and closes at 6:03, hitting halfway at 9:36. In a 5K the margin is thin enough that this is less about fuel and more about nerve: it keeps the last kilometre under your control, which is exactly where a sub-19 is won or lost.

Even splits — 6:07 per mile

Even pacing: 6:07 per mile for all 3.1 miles, finishing in 19:00.

Slight negative split — 6:11 out, 6:03 home

One percent either side of even: 6:11 per mile through halfway (9:36), then 6:03 home. Same 19:00 finish. The mile that straddles halfway blends both paces.

Per kilometre — 3:48 per km

Even pacing in metric: 3:48 per kilometre across 5.0 km.

Are you ready for a sub-19 5K?

Equivalent times are computed from the rounded VDOT of 52.9, so the 5K row lands within a few seconds of 19:00 rather than exactly on it. That is rounding, not a different prediction.

The entry fee reads as follows: it lines up with about a 39:23 10K and a 1:27:10 half marathon. A sub-19 5K does not require a big engine so much as a sharpened one — the aerobic base of those equivalent times, with a top end filed to a point.

The number to sit with is 6:07 against your threshold of 6:32: you will spend the entire race well above the pace your body can buffer, within a few seconds of your interval prescription of 6:03. That is why this barrier moves on track nights rather than Sunday mornings — 400s and 800s at 5:40 and 6:03, week over week, until the pace that currently reads as a red line starts to read as a rhythm. From there, 19:00 is one even-paced, slightly brave morning.

Sub-19 is the last flight of stairs before the 18s, and it is climbed almost entirely on the track: 3:48 per kilometre — 91-second laps — a breath off your interval pace of 6:03, with repetitions at 5:40 doing the leg-speed housekeeping. What distinguishes it from the rungs below is that pacing errors stop being recoverable: at 6:07 per mile, ten seconds donated to adrenaline in the first 800 metres are simply gone. Halfway in 9:30, even to the line, and let the last 400 be the only extravagant thing you do. Entry evidence: a 10K near 39:23.

Where do you stand right now?

Enter a race you have actually run and this will tell you where you stand against the 52.9 VDOT a sub-19 5K requires — your score, the target, and the gap. Nothing is stored or sent anywhere.

Training paces for a sub-19 5K

These are day-one paces for a 52.9 VDOT — the fitness a sub-19 5K requires. They are a snapshot, not a season: as you get fitter every one of them should get faster, and training at last month's paces is how a good block goes stale.

Easy pace is a range rather than a point — Daniels defines it as 59–74% of VO₂max, which for the fitness behind a sub-19 5K runs from 7:31 to 9:01 per mile. The single easy figure below is the 70% value.

Sub-19 5K FAQ