Half Marathon Training: Your Complete Guide

The half marathon (21.1km / 13.1 miles) is often called the sweet spot of distance running. It's long enough to be challenging and satisfying, but doesn't require the life-consuming training commitment of a full marathon. **Good candidates for a half marathon:** - Runners who can comfortably run 5-8km without stopping - Those who've been running consistently for at least 3 months - Anyone who's completed a 10K and wants the next challenge **Training timeline:** Most runners need 10-14 weeks of structured training, depending on their starting fitness. If you're already running 20-30km per week, you're in a great starting position.

A typical half marathon training week has 4-5 running days with a mix of workout types: **Monday**: Rest or cross-training **Tuesday**: Quality session (tempo, intervals, or hills) **Wednesday**: Easy run (30-45 min) **Thursday**: Easy run or cross-training **Friday**: Rest **Saturday**: Long run (the cornerstone of half marathon training) **Sunday**: Easy recovery run (20-30 min) Your long run should build progressively: start at 10-12km and work up to 18-20km in the peak weeks. You don't need to run the full 21.1km in training — the race-day adrenaline and taper will carry you the extra distance.

Three workout types build the specific fitness you need for a strong half marathon: **Tempo Runs**: Sustained effort at your lactate threshold — the pace where lactic acid begins to accumulate faster than your body can clear it. This typically feels "comfortably hard." Start with 15-minute tempo blocks and build to 30-40 minutes. These teach your body to sustain a faster pace for longer. **Long Runs**: Your weekly long run builds endurance and teaches your body to burn fat efficiently. Include some half marathon pace work in your long runs during the Build phase — for example, running the last 3-5km at your target race pace. **Intervals**: Shorter, faster repetitions (e.g., 6x1km at 10K pace) improve your running economy and VO2max. They make your half marathon pace feel easier by training at intensities above it.

The half marathon sits in an interesting nutritional zone — it's long enough that fueling matters, but short enough that you don't need the elaborate strategy of a full marathon. **Before the race**: Eat a familiar breakfast 2-3 hours before start time. Something carb-rich and easily digestible: toast with banana, oatmeal, or a bagel with peanut butter. **During the race**: For runners finishing under 1:45, water at aid stations is usually sufficient. For those running 1:45-2:30+, taking one energy gel around the 12-14km mark can help maintain pace in the final third. **Practice fueling in training**: Whatever you plan to eat or drink on race day, practice it during your long runs. Your stomach needs training too. **The week before**: No need for extreme carbo-loading. Simply eat normally with slightly more emphasis on carbohydrates in the 2-3 days before the race.

The half marathon rewards even pacing more than almost any other distance. Going out too fast in the first 5km will cost you dearly in the final 5km. **Pacing strategy**: Aim for negative splits — run the second half slightly faster than the first. Start 10-15 seconds per km slower than your target pace for the first 3km, settle into pace for km 4-15, then push if you have energy for the final 6km. **The wall at 16-18km**: Many half marathon runners hit a rough patch here. It's mostly mental. Break the remaining distance into smaller chunks: "Just get to the next aid station." Use the crowd energy to carry you through. **Finish strong**: If you've paced well, you should have something left for the final 2km. This is where all those tempo runs pay off.