Sub-4 Marathon Pace

Sub-4 marathon pace guide. See the pace needed to break 4 hours and generate training paces for long runs, tempo, and threshold workouts.

Breaking 4 is about endurance and discipline. Use training zones to build volume while keeping workouts appropriately controlled.

Training pace reference

Training paces by recent 5K time (min/km)
5K timeVDOTEasyMarathonThresholdIntervalRep
15:0069.63:45–4:303:23–3:423:152:562:32
17:3058.24:20–5:123:54–4:173:463:232:56
20:0049.84:54–5:534:26–4:514:163:513:19
22:3043.45:29–6:344:57–5:254:464:183:43
25:0038.36:03–7:145:28–5:595:164:454:06
27:3034.26:37–7:535:59–6:335:465:134:30
30:0030.87:11–8:326:30–7:066:165:404:54
32:3028.07:44–9:107:01–7:396:466:075:17
35:0025.68:17–9:487:31–8:127:156:345:41

More pacing guides

Method and sources

The numbers on this page are computed with the same code as the TrainPace calculators, from these published methods. They are training guidance, not medical advice.

Other TrainPace tools

For AI agents

Every public page on this site has a Markdown mirror at the same path with a .md suffix (for example /calculator.md), and honors an Accept: text/markdown request header on the HTML URL. The calculations here are also available as callable tools through a free public MCP server — no account or API key.