Sub-2 Hour Half Marathon Training Plan (and Sub-1:45, Sub-1:30)
Break 2 hours for the half at 5:41/km (9:09/mile): tempo runs, race-pace long runs, a clean taper. Sub-1:45 and sub-1:30 paces too.
The plan, week by week
Minutes per week. Tap a week.Pick your goal time
The chart above is the one marked “shown”. Ask Claude for any of these and it builds that one, paced from your own runs.
| Version | Longest run | Goal pace | Level |
|---|---|---|---|
| Sub-1:30 | 125 min | 4:16 /km | Advanced |
| Sub-1:45 | 95 min | 4:59 /km | Intermediate |
| Sub-2:00 (shown) | 65 min | 5:41 /km | Beginner to intermediate |
Training paces for each goal
Worked out from the goal time, per kilometre. They’re starting points: connect Garmin and Claude sets yours from your own recent runs.
| Goal | Race pace | Threshold | Intervals | Easy |
|---|---|---|---|---|
| Sub-1:30 | 4:16 | 4:11 | 3:55 | 5:12–5:57 |
| Sub-1:45 | 4:59 | 4:54 | 4:34 | 5:56–6:41 |
| Sub-2:00 | 5:41 | 5:36 | 5:13 | 6:41–7:26 |
The two sessions that matter most
- 3 × 3 km, 3 min jog between, at 4:11 for sub-1:30, 4:54 for sub-1:45 or 5:36 for sub-2:00 per km. Threshold is the half marathon's engine.
- Long run of 16-18 km, the last 6 km at goal pace, at 4:16 for sub-1:30, 4:59 for sub-1:45 or 5:41 for sub-2:00 per km. Practises goal pace on tired legs, like the second half.
A training plan with one specific target: running 2:00 for half marathon. Everything in this block — the pacing, the sessions, the taper — is calibrated to deliver that goal on race day.
What hitting this goal actually requires
Running under 2:00 for half marathon means sustaining 5:41/km (9:09/mile) for half marathon from gun to tape. That pace needs to feel controlled at the start, manageable in the middle, and difficult (but not impossible) in the final stages. If your current training pace at easy effort is significantly slower than goal pace, you need more aerobic base before adding speed work — this plan builds both.
The training sessions that move the needle
For a goal of this specificity, two quality sessions per week deliver maximum return: one threshold run at slightly slower than goal pace (sustainable for 20–30 minutes) and one interval session at slightly faster than goal pace (short reps with recovery). Everything else should be genuinely easy. Trying to add a third quality session accelerates burnout and injury without additional performance gain.
Race execution to hit your target
Start 5–10 seconds per kilometre slower than goal pace for the first 15–20% of the race. Your adrenaline and fresh legs will make goal pace feel unsustainably slow — that's exactly right. Gradually ascend to goal pace over the first quarter, hold it through the middle, and race the final section by feel. The runners who hit time goals go through the first half feeling underdone; the runners who miss them go through the first half feeling great.
Fuel and pacing for a half marathon time goal
A half marathon goal needs a pacing plan and a fuelling plan. Pacing: run the first 5 km a few seconds per kilometre slower than goal pace, hold goal pace through the middle, and only push after 15 km. Fuelling: most runners chasing a time take a gel or two, around the middle of the race, practised on long runs first. Water at most stations, in small sips. Missing a half marathon goal is more often down to the first 5 km and an empty tank than to fitness.
Is your half marathon goal realistic?
Two checks tell you whether a half marathon goal is in reach. First, a 10K race or time trial four to six weeks out: half marathon pace usually sits 10 to 20 seconds per kilometre slower than your 10K pace. Second, the goal-pace sections of your long runs: if 8 to 10 km at goal pace feels controlled late in the block, you are ready. If both say the goal is a stretch, adjust it now. A well-paced run at a slightly slower target beats a fast start and a fade.
Questions
How many days per week does this half marathon plan require?
Most sessions in this plan run four to five days per week, including one quality session, a long run, and easy aerobic running. The plan is designed to be adjustable — with Daash, Claude can restructure it around your available days each week.
Do I need a GPS watch to follow this half marathon training plan?
A GPS watch or running app is helpful for tracking pace and distance, but not strictly required. Effort-based running (using a scale of 1–10 perceived exertion) works well for easy runs. For quality sessions where specific paces matter, a watch becomes more valuable.
What should I eat before a long run?
For runs under 60–75 minutes, eating beforehand is optional. For longer runs, a light carbohydrate-based meal two to three hours before the session — oats, toast with banana, or a rice-based option — provides fuel without gastrointestinal issues. Avoid high-fat, high-fibre, or unfamiliar foods on long run mornings.
How does Daash adapt the plan if I miss a session?
Daash sees missed sessions in your Garmin data. Tell Claude why — illness, fatigue, life — and it reworks the coming week: redistributing sessions, reducing volume if needed, or adjusting the next quality session, then updates the workouts on your watch.
Do I need to take gels or nutrition during training for a half marathon?
For long runs over 75–80 minutes, practising race nutrition is valuable. Train with the gels, chews, or drinks available at your target race so your gut is adapted before race day. Do not try a new nutrition product for the first time on race morning.