Power Strategy for Climbing Races: Power Distribution and Pacing on Non-Uniform Climbs

Introduction

Climbing races differ from flat time trials. The undulating gradient means that a “steady power” strategy still holds on a purely physical level, but the race’s group dynamics, tactical decisions, and psychological factors make climbing power strategy far more complex. The climbing race routes at Wuling, Hehuan Mountain, and Yangmingshan each have their own characteristics. Understanding the relationship between gradient changes and power distribution is essential to making the right choices at critical moments.

The Physics of Climbing

When climbing, the influence of air resistance drops significantly (speed is lower), and gravity becomes the dominant resistance. This makes climbing closer to a pure “W/kg competition” than riding on flat ground.

Impact of gradient on power demand:

Steady Power vs. Gradient-Adaptive Power

Pure physics calculations show that for climbs with uneven gradients, the optimal strategy is to slightly lower power on steep sections (relative to the average) and slightly raise power on gentler sections—the opposite of a steady strategy on flat ground!

Reason: On gentler sections, speed is higher and air resistance is relatively greater, so increasing power increases speed more effectively; on steep sections, speed is slow and air resistance is minimal, so forcing extra power yields limited speed gains while consuming large amounts of energy.

Theoretically optimal climbing strategy:

• Gentle slopes (< 5%): 5–10% above average power
• Moderate slopes (5–8%): close to average power
• Steep slopes (> 8%): 3–7% below average power

Tactical Power Distribution in a Group Climb

In amateur races, climbing often happens within a group, and group dynamics can override purely physical strategies:

Power Management When Following the Group

When you’re at the back of the group on a climb, the biggest trap is the “accordion effect”—the group’s speed fluctuates, and the speed variation at the tail is amplified, forcing you to repeatedly sprint and brake, driving TSS far higher than a steady climb.

Recommendation: Try to stay in the front third of the group to reduce the impact of the accordion effect. Even if maintaining position costs more energy, it’s usually more economical than coping with the fluctuations at the back.

Choosing Key Attack Points

The most effective attack points in a climbing race are usually:

The transition point from steep to gentle slope (the crest): Most riders have burned a lot of energy on the steep section and can’t accelerate immediately on the gentler section. Riders with strong anaerobic capacity can accelerate here to open a gap.

Earlier, easier sections where you feel “comfortable”: If you’ve conserved energy at this point (by holding back early on), you can attack while the group as a whole is fatigued.

The final climb 3–5 km from the finish: At this point, go all out—there’s nothing left to save for later.

Strategy Differences by Climb Type

Long Climbs (30+ minutes): Endurance-Dominated

Key strategy points:

• First third: hold 90–93% of FTP (restraint is crucial)
• Middle third: steady at 95–100% of FTP
• Final third: raise to 100–107% of FTP

Common mistake: following when a strong rider accelerates, using too much anaerobic capacity early on, then blowing up in the middle and later stages.

Short Climbs (10–20 minutes): Mixed-Energy-Dominated

Key strategy points:

• Hold 103–110% of FTP throughout
• Go all out for the final 2–3 minutes
• Allow greater anaerobic capacity expenditure (the climb is short, so the risk of blowing up later is low)

Wuling Type (Ultra-Long Climb, 3–4 Hours): Energy Management-Dominated

High-altitude nutrition advice: Above 2,500 meters, appetite may decline, but carbohydrate needs remain unchanged. Liquid energy gels are recommended (easier to digest than solid food).

Psychological Management Techniques

Segment goal method: Don’t think “50 km to go.” Break the route into 10 km segments and focus only on the target power for the current segment.

Power pacing awareness: With long-term training, you should be able to feel the difference between 90% of FTP and 100% of FTP. If your power meter fails during a race, RPE (rate of perceived exertion) is your backup navigation.

Managing comparison mindset: In climbing races, someone often starts fast. Don’t be lured into following. Trust your strategy, and let the late-race passes boost your confidence.

Practical Advice

1. Recon the course beforehand: Knowing the location of every steep and gentle section lets you plan power distribution checkpoints in advance
2. Analyze historical data with Strava: If you have Strava Segment data, analyze top riders’ segment times to estimate target power
3. Train on Taiwan’s steep climbs: Use the short, steep sections (8–12%) at Yangmingshan, the hills behind Xindian Bitan, Yilan, and elsewhere to practice power control on steep gradients

Conclusion

Power strategy in climbing races blends physical optimization with the wisdom of race reality. Understanding the relationship between gradient and power, and conserving energy at key attack points, allows you to overtake rivals in the later stages. Every climbing session is an opportunity to build this judgment.

Related Reading

• Complete Guide to Climbing Race Pacing: Power Management from Start to Finish
• Power Distribution on Climbs: Steady Climbing vs. Negative Splitting Strategy
• The Science of Climbing Pacing: Differences in Energy Expenditure Between Average Power and Even Climbing
• Power Strategy for Different Terrain: Principles of Power Distribution on Flats, Climbs, and Descents