Random jogs won’t cut it. You need targeted intervals, tempo runs, strength work, and recovery. This guide lays out the practical steps to raise your speed and sustain a faster pace.
You can’t train precisely without a starting point. A timed effort gives you the data to structure every workout instead of guessing.
A max-effort time trial sets your training zones. Pick 1.5 miles (2.4 km) or a 5k (3.1 miles) and treat it like a key session.

With a solid baseline, you’ll hit every workout at the right intensity.
Use your time trial result to calculate zones. A 25-minute 5k runner trains at different paces than a 20-minute runner. Plug your 5k time into this table to get VO₂ max, lactate-threshold, and easy-pace targets.
| 5k Time Trial Result | Estimated VO₂ Max Pace (per 400 m) | Lactate Threshold Pace (per mile) | Easy/Recovery Pace (per mile) |
|---|---|---|---|
| 18:00 (5:48/mile) | 1:26 | 6:05 – 6:15 | 7:45 – 8:30 |
| 20:00 (6:26/mile) | 1:36 | 6:45 – 6:55 | 8:30 – 9:15 |
| 22:00 (7:05/mile) | 1:45 | 7:25 – 7:35 | 9:15 – 10:00 |
| 24:00 (7:43/mile) | 1:55 | 8:05 – 8:15 | 10:00 – 10:45 |
| 26:00 (8:22/mile) | 2:04 | 8:45 – 8:55 | 10:45 – 11:30 |
| 28:00 (9:01/mile) | 2:14 | 9:25 – 9:35 | 11:30 – 12:15 |
| 30:00 (9:39/mile) | 2:23 | 10:05 – 10:15 | 12:15 – 13:00 |
Your baseline anchors every future session.
Intervals force your body to adapt key systems: VO₂ max and lactate threshold. Randomly pushing hard isn’t enough—you need a plan.

A complete plan targets both.
Use your baseline paces. Adjust distances, reps, and rest to target the right system.
Workout 1: VO₂ Max Builder (400 m Repeats)
Workout 2: Lactate Threshold Grinder (800 m Repeats)
Data from marathon training between 2008–2018 shows countries using structured workouts shaved over 10 minutes from average race times.
Fumbling a watch kills focus. Program your intervals in an app and lock in.
Save presets for “400 m Repeats,” “800 m Threshold,” or Tabata. For more on Tabata, see our complete guide to Tabata HIIT workouts.
Strength underpins speed. A rigid, powerful frame improves running economy and durability.

Aim for 2 sessions per week on non-key running days. If you must double up, lift several hours after a run. Keep sessions short—30–45 minutes.
Session Outline:
Strength training can boost running economy by 4–8%. For routines that mix strength and endurance, see our lower body HIIT workout.
Wasted motion costs speed. Dial in efficiency to make your goal pace feel easier.
Small tweaks in form can unlock 3% economy gains for many runners.
Even or negative splits win races. A controlled start prevents acid-build up and fatigue.
Workouts are the stimulus. Adaptation happens in recovery. Treat recovery as a core piece of training.

Aim for 7–9 hours nightly. Sleep triggers muscle repair, hormone release, and neuromuscular adaptation.
Your body adapts quickly. When workouts feel easy, turn the dial:
Log every session. When your go-to workout stops challenging you, make it harder.
With smart training 3–4 times per week, expect to feel a difference in 4–6 weeks. Measurable PRs typically take 8–12 weeks.
Prioritize cadence. A quicker turnover (170–180 spm) reduces braking forces and injury risk. Over-striding often causes impact issues.
Ready to train with precision? Program workouts in seconds, lock into pacing with audio cues, and focus 100% on execution. Download KNTC and nail your next interval session.
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