5K goal · 19:59
Sub-20 5K Pace
Sub-20 is decided by single seconds: 19:59 averages 3:59.8 per kilometre, so a 4:10 kilometre has to be answered with a 3:50 somewhere harder. The requirement is exact: 6:26 per mile or 4:00 per kilometre, held for 3.1 miles (5.00 km), from the start line to the finish — the chart below has the goal pre-selected with every split and a printable pace band.
- Required pace
- 6:26 /mi
- Metric pace
- 4:00 /km
- Goal time
- 19:59
- 10K equivalent
- 41:28
| Goal time | Pace /mi | Pace /km | Halfway |
|---|---|---|---|
| 12:00 | 3:52 | 2:24 | 6:00 |
| 13:00 | 4:11 | 2:36 | 6:30 |
| 14:00 | 4:30 | 2:48 | 7:00 |
| 15:00 | 4:50 | 3:00 | 7:30 |
| 16:00 | 5:09 | 3:12 | 8:00 |
| 17:00 | 5:28 | 3:24 | 8:30 |
| 18:00 | 5:48 | 3:36 | 9:00 |
| 18:30 | 5:57 | 3:42 | 9:15 |
| 19:00 | 6:07 | 3:48 | 9:30 |
| 19:30 | 6:17 | 3:54 | 9:45 |
| 20:00 | 6:26 | 4:00 | 10:00 |
| 20:30 | 6:36 | 4:06 | 10:15 |
| 21:00 | 6:46 | 4:12 | 10:30 |
| 21:30 | 6:55 | 4:18 | 10:45 |
| 22:00 | 7:05 | 4:24 | 11:00 |
| 22:30 | 7:15 | 4:30 | 11:15 |
| 23:00 | 7:24 | 4:36 | 11:30 |
| 23:30 | 7:34 | 4:42 | 11:45 |
| 24:00 | 7:43 | 4:48 | 12:00 |
| 24:30 | 7:53 | 4:54 | 12:15 |
| 25:00 | 8:03 | 5:00 | 12:30 |
| 25:30 | 8:12 | 5:06 | 12:45 |
| 26:00 | 8:22 | 5:12 | 13:00 |
| 26:30 | 8:32 | 5:18 | 13:15 |
| 27:00 | 8:41 | 5:24 | 13:30 |
| 27:30 | 8:51 | 5:30 | 13:45 |
| 28:00 | 9:01 | 5:36 | 14:00 |
| 28:30 | 9:10 | 5:42 | 14:15 |
| 29:00 | 9:20 | 5:48 | 14:30 |
| 29:30 | 9:30 | 5:54 | 14:45 |
| 30:00 | 9:39 | 6:00 | 15:00 |
| 31:00 | 9:59 | 6:12 | 15:30 |
| 32:00 | 10:18 | 6:24 | 16:00 |
| 33:00 | 10:37 | 6:36 | 16:30 |
| 34:00 | 10:57 | 6:48 | 17:00 |
| 35:00 | 11:16 | 7:00 | 17:30 |
| 36:00 | 11:35 | 7:12 | 18:00 |
| 37:00 | 11:55 | 7:24 | 18:30 |
| 38:00 | 12:14 | 7:36 | 19:00 |
| 39:00 | 12:33 | 7:48 | 19:30 |
| 40:00 | 12:52 | 8:00 | 20:00 |
| 41:00 | 13:12 | 8:12 | 20:30 |
| 42:00 | 13:31 | 8:24 | 21:00 |
| 43:00 | 13:50 | 8:36 | 21:30 |
| 44:00 | 14:10 | 8:48 | 22:00 |
| 45:00 | 14:29 | 9:00 | 22:30 |
Tap a goal time for splits, checkpoints and a printable pace band
5K · even splits
19:59
6:26 /mi
4:00 /km
Mi 1
6:26
6:26
Mi 2
6:26
12:52
Mi 3
6:26
19:18
Mi 3.1 *
0:41
19:59
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Where does 6:26/mi come from?
19:59 = 19.98 minutes
19.98 min ÷ 3.107 mi = 6.432 min per mile
19.98 min ÷ 5.000 km = 3.997 min per km
sub-20 5K = 6:26/mi = 4:00/km, every split of the way
Is a 19:59 5k realistic?
The prerequisite is the 20-minute goal's (a 41:30 10K) plus one quality: the ability to pace under race-day adrenaline. The classic sub-20 race is 3:52 / 4:00 / 3:58 / 4:02 / 4:06 — a controlled first kilometre, then even suffering. Runners who open in 3:45 almost always finish in 20:20. Train for 20:00, race the first kilometre like you mean 20:10, and the barrier usually falls.
Typical prerequisite performances — rules of thumb, not predictions
- 10K ≈ 41:28
- Half ≈ 1:32:03
- Marathon ≈ 3:16:36
What does this goal mean for training?
Goal pace is 6:26/mi (4:00/km). The decisive sessions are 5–6 × 1 km at 3:55–4:00/km with 90-second rest, and 12–16 × 400 m at 92–94 seconds. Easy days at 8:55–9:55/mi keep the volume honest. Use the −1% band: a 4:01 first kilometre and a 3:59 last one is the race plan.
| Session | Pace /mi | Role |
|---|---|---|
| Race goal | 6:26 | the pace on the day |
| Tempo / threshold | 6:46–6:56 | comfortably hard, 20–40 min |
| Long run | 7:56–8:56 | the backbone of the build |
| Easy running | 8:56–9:56 | conversational, most miles |
Ranges are standard coaching rules of thumb — individual economy varies