Seasonal Scheduling of Speed Training: Designing an 8-Week Pre-Race Speed Intensification Block

Periodized Training: Why Can’t You Train Speed All Year Round?

Speed training (high-intensity intervals, VO2max workouts) places significant stress on the body. If you maintain high intensity year-round, your body won’t have time for deep adaptation and repair, which can lead to overtraining—not only stalling progress but potentially causing regression and injury.

Periodization is built on the core concept of dividing your annual training into distinct phases, each with different goals and intensity focuses:

• Base Phase (off-season, 16–20 weeks): Build the aerobic foundation with plenty of easy runs and long runs
• Build Phase (pre-season, 8–12 weeks): Introduce tempo runs and preliminary intervals to raise the threshold
• Speed Intensification Phase (6–8 weeks pre-race): Dense speed training to push VO2max and race-pace capacity
• Taper (2–3 weeks pre-race): Reduce volume to allow supercompensation
• Recovery Phase (2–4 weeks post-race): Easy recovery to prepare for the next cycle

The 8-Week Pre-Race Speed Intensification Phase: Overall Framework

Intensity Distribution Principles

Training intensity during the speed intensification phase is the highest of the year, but training volume (mileage) is 10–15% lower than the base phase. The rise in “quality” paired with a moderate decline in “quantity” is the defining characteristic of this phase.

Progressive Overload Principles

Increase training stimulus every 2–3 weeks, then schedule a recovery week:

• Weeks 1–3: Introduce speed training, starting with low set counts
• Week 4: Mini-taper (reduce mileage by 20%)
• Weeks 5–7: Peak intensity period, pushing sets and intensity to the maximum
• Week 8: Pre-race taper, maintaining intensity while drastically reducing volume

Detailed 8-Week Pre-Race Workout Plan Example (For 5K/10K Goal Runners)

Weeks 1–3: Introducing Speed Training

Weekly Workout Structure

Week 4: Recovery Week

Reduce mileage by 20–25%, maintain one lighter speed stimulus

Weeks 5–7: Peak Intensification Period

This phase carries the highest intensity before race day; workout quality is paramount

Week 8: Pre-Race Taper

Maintain intensity, drastically reduce training volume (30–40%)

Key Considerations During the Speed Intensification Phase

• Fatigue monitoring: Measure resting heart rate every morning; if it’s more than 5–7 bpm above your normal value, recovery is insufficient and you should proactively reduce that day’s training intensity
• Pain vs. soreness: Mild muscle soreness is normal; joint pain or pain at a specific point is an injury signal—don’t push through it
• Feeling “worse” during the taper: Many runners feel heavy legs and discomfort during the pre-race reduction week. This is “Taper Madness,” a normal phenomenon—don’t increase training volume because of it
• Race week: No high-intensity training after Thursday; Saturday’s strides are the only speed work

Suggested Timing for Major Road Races in Taiwan

Taiwan’s road racing season is mainly concentrated from October to April (the cooler months). Here is a suggested planning timeline:

• Early September: Enter the speed intensification phase (8 weeks pre-race)
• Late October–November: Major goal races (Taipei Marathon, Kaohsiung International Marathon, etc.)
• December–January: Post-race recovery + base phase rebuilding
• Late February: If there are spring races (such as the Taipei 101 Run Up, Spring Marathon), start a second speed intensification phase

Conclusion

The speed intensification phase is the “harvest season” of your annual training—the aerobic foundation you built during the base and build phases is finally converted into race speed during these 8 weeks. Follow the scientific principles of progressive overload, avoid overtraining during the peak period, and give your body ample tapering room before race day. You’ll step up to the starting line in peak condition.

Related Reading

• Periodized Training for Sprinters: Seasonal Allocation of Speed and Endurance
• Mileage Periodization: Stacking Base, Intensification, Peak, and Recovery Phases
• Power Training Periodization: Scientific Workout Design for Base, Intensification, and Race Phases
• Marathon Periodized Training: The Four Stages of Base, Intensification, Race, and Taper