12-Week Sub-2 Hour Half Marathon Training Plan
Breaking the 2 Hour Barrier
Breaking the 2-hour barrier in a half marathon requires maintaining an average pace under 5:41 per kilometer across the $21.097 km course.
Running at an elevation of approximately 1,795 meters (5,889 feet) above sea level along Nairobi’s Southern Bypass demands structural pacing and high cardiovascular efficiency.
Weekly Structure Overview
Monday: Rest / Light Stretching
Monday: Rest / Light Stretching
Mondays are always sticky with work pressures. We are giving it a rest and focusing on work.
Tuesday: Easy Run (Conversational pace)
Tuesday: Easy Run (Conversational pace)
Run these at a comfortable, conversational pace. If you can't speak a full sentence without gasping, slow down.
Wednesday: Marathon Pace (MP) Run (Practicing race rhythm)
Wednesday: Marathon Pace (MP) Run (Practicing race rhythm)
These are mid-week runs to practice your target race pace, aiming for approximately 7:00 to 7:09 per km.
Thursday: Easy Run (Recovery)
Thursday: Easy Run (Recovery)
Run these at a comfortable, conversational pace. If you can't speak a full sentence without gasping, slow down.
Friday: Rest or Cross-Training (CT - Cycling, swimming, light core/strength)
Friday: Rest or Cross-Training (CT - Cycling, swimming, light core/strength)
Low-impact activities (cycling, swimming, rowing) paired with light strength training to preserve your joints.
Saturday: Long Run (The core weekly endurance builder)
Saturday: Long Run (The core weekly endurance builder)
The core of your training. Run these 20 to 30 seconds slower than your target marathon pace (around 7:25 to 7:35 per km) to build endurance safely.
Sunday: Rest / Full Recovery Day
Sunday: Rest / Full Recovery Day
Non-negotiable. Your muscles adapt and grow stronger on your days off.
| Week | Dates | Tue (Easy) | Wed (Quality Workout) | Thu (Easy) | Sat (Long Run) | Weekly Vol. |
|---|---|---|---|---|---|---|
| Week 1 | Aug 3 – Aug 9 | 6 km Easy | 6 km (2 km warm-up, 3 km @ HMP 5:35–5:40/km, 1 km cool-down) | 5 km Easy | 10 km Long Run (6:05–6:20/km) | 27 km |
| Week 2 | Aug 10 – Aug 16 | 6 km Easy | 7 km (2 km warm-up, 4 km @ HMP, 1 km cool-down) | 6 km Easy | 12 km Long Run (6:00–6:15/km) | 31 km |
| Week 3 | Aug 17 – Aug 23 | 7 km Easy | 8 km Tempo (2 km warm-up, 4 × 1 km @ Tempo Pace 5:20/km w/ 90s rest, 2 km cool-down) | 6 km Easy | 14 km Long Run (Last 2 km @ HMP) | 35 km |
Phase 2: Threshold & Lactate Building (Weeks 4–7: Aug 24 – Sep 20)
Increasing resistance to fatigue by extending tempo efforts and building the mid-week long-interval capacity
| Week | Dates | Tue (Easy) | Wed (Quality Workout) | Thu (Easy) | Sat (Long Run) | Weekly Vol. |
|---|---|---|---|---|---|---|
| Week 4 | Aug 24 – Aug 30 | 7 km Easy | 8 km (2 km warm-up, 5 km continuous @ HMP 5:35/km, 1 km cool-down) | 6 km Easy | 12 km Recovery Long Run | 33 km |
| Week 5 | Aug 31 – Sep 6 | 8 km Easy | 9 km (2 km warm-up, 3 × 2 km @ Tempo 5:20/km w/ 2 min recovery, 1 km cool-down) | 7 km Easy | 16 km Long Run (Aerobic steady) | 40 km |
| Week 6 | Sep 7 – Sep 13 | 8 km Easy | 9 km (2 km warm-up, 6 km continuous @ HMP 5:35/km, 1 km cool-down) | 7 km Easy | 17 km Long Run (Progressive) | 41 km |
| Week 7 | Sep 14 – Sep 20 | 8 km Easy | 10 km Tempo (2 km warm-up, 4 × 1.5 km @ Tempo 5:15–5:20/km w/ 90s rest, 2 km cool-down) | 7 km Easy | 14 km Steady Long Run | 39 km |
| Week | Dates | Tue (Easy) | Wed (Quality Workout) | Thu (Easy) | Sat (Long Run) | Weekly Vol. |
|---|---|---|---|---|---|---|
| Week 8 | Sep 21 – Sep 27 | 8 km Easy | 10 km (2 km warm-up, 7 km @ HMP 5:35/km, 1 km cool-down) | 7 km Easy | 18 km Peak Long Run (12 km Easy + 6 km @ HMP) | 43 km |
| Week 9 | Sep 28 – Oct 4 | 8 km Easy | 9 km (2 km warm-up, 5 × 1 km @ Interval Pace 5:00/km w/ 2 min rest, 2 km cool-down) | 6 km Easy | 14 km Recovery Long Run | 37 km |
| Week 10 | Oct 5 – Oct 11 | 7 km Easy | 8 km Race Simulation (2 km warm-up, 5 km @ HMP 5:35/km, 1 km cool-down) | 6 km Easy | 16 km Key Prep Run (Last 4 km @ HMP) | 37 km |
| Week | Dates | Tue (Easy) | Wed (Quality Workout) | Thu (Easy) | Sat (Shakeout) | Sun (Race Day) | Weekly Vol. |
|---|---|---|---|---|---|---|---|
| Week 11 | Oct 12 – Oct 18 | 6 km Easy | 6 km (2 km warm-up, 3 km @ HMP, 1 km cool-down) | 5 km Easy | 10 km Taper Run | Rest / CT | 27 km |
| Week 12 | Oct 19 – Oct 25 | 4 km Easy | 4 km Easy w/ 4 × 100m strides | Rest | 2 km Shakeout | RACE DAY! | 31.1 km |
Altitude & Execution Guidelines for Beginners
Respect the Conversational Pace: On Tuesday and Thursday easy runs, your effort should feel light. If you cannot speak a full sentence comfortably without gasping, slow down immediately.
Fueling Practice on Long Runs: On any run longer than 10 km, practice taking an energy gel or chews around km 7 and km 14, washed down with water. Never test new nutrition on race morning!
Defensive Start on the Southern Bypass: The early kilometers of the Nairobi course feature subtle inclines. Start 10 to 15 seconds slower than your target 7:00/km pace for the first 3 km to prevent early fatigue.
