Pacer Following Techniques: How to Draft Behind a Pacer with Maximum Efficiency

The Purpose of a Pacer

In major marathon events, pacers (also known as rabbits) are among the most valuable resources for runners. A good pacer can:

• Provide precise real-time pacing, so runners don’t need to constantly check their GPS watches
• Open a path through the crowd, reducing runners’ mental fatigue
• Offer a crowd-motivation effect during mental low points
• Usually possess extensive race experience, able to anticipate course conditions and make real-time adjustments

But “running with a pacer” isn’t just about following behind—an incorrect drafting approach can actually consume more energy than pacing yourself.

Optimal Drafting Positions

Position 1: 1–2m Directly Behind the Pacer (Most Efficient)

According to wind tunnel experiments, drafting 1–2m behind while running can save:

Being 1m directly behind is the optimal balance point: significant wind resistance savings without the risk of stepping on the runner ahead’s heels.

Position 2: 45° Behind and to the Side of the Pacer

When the crowd is dense, you can move to a position roughly 45° behind and to the side of the pacer. This allows you to take advantage of some wind-blocking effect while avoiding being separated by the crowd.

Energy Management in the Crowd

Locating the Pacer After the Start

Major marathons in Taiwan typically have 3,000–20,000 participants, and pacer flags can be difficult to spot in the crowd. Recommendations:

• Position yourself near the pacer 15 minutes before the start
• Use the pacer’s flag color (Taipei Marathon typically uses different colors for identification) as a visual anchor
• If you get separated, maintain your target pace using your GPS watch and wait to naturally catch up or be overtaken

Calculating Energy Savings from Drafting

Research estimates that at a 4:00/km marathon pace, drafting the entire race (compared to running solo) can save approximately 2–4 minutes of finish time, equivalent to a 1–2% energy savings.

Common Drafting Pitfalls

Pitfall 1: Failing to Notice Pacer Fluctuations

Pacers are not machines; pace fluctuations occur before and after aid stations, on uphills, and on downhills. Pacers who start out faster will make up time at aid stations. If you blindly follow every acceleration, you may burn out within the first 10km.

Solution: Keep monitoring your own GPS pace. When the pacer runs more than 5 seconds faster than your target, actively slow down and wait for the pacer to return to a normal rhythm after the aid station.

Pitfall 2: Extra Lateral Movement Caused by Crowd Jostling

In the crowd around a pacer, moving left and right and dodging others is additional energy expenditure. Research shows that the actual distance run in a crowded field can be 0.5–1.5% more than what GPS records (because runners are constantly weaving).

Solution: After the crowd initially thins out (usually after 5–8km), find a stable drafting position and reduce lateral movement.

Pitfall 3: Over-Reliance on the Pacer Degrades Self-Pacing Ability

Following a pacer for the entire race causes runners to lose awareness of their own rhythm. If the pacer stops at an aid station or falls behind, the runner may immediately fall into panic.

When Should You Break Away from the Pacer?

Practical Advice

• Communicate proactively with the pacer: Before the start, ask about the pacer’s aid station strategy (whether they stop or not) and understand their pacing plan
• Trust your GPS over your feelings: Under a pacer’s guidance, the early stages often feel slower than they actually are—trust the numbers
• Train independent pacing ability: A pacer is a tool, not a crutch. During training, develop the ability to pace independently without external reference points
• Quality of Taipei Marathon pacers: Taipei Marathon pacers are typically elite Taiwanese runners with high accuracy and reliability

Conclusion

Pacers are a hidden advantage in marathon racing. Runners who know how to use them can save energy, stabilize their pace, and face the second half of the race with greater composure. But ultimately, what carries you across the finish line is not the pacer—it’s your own understanding of pace and control over your body. Drafting is the starting point of learning; running solo is the endpoint of evolution.

Related Reading

• Road Race Pacer Drafting Techniques: How to Use a Pacer to Reach Your Goal
• Road Race Pacer Guide: The Complete Strategy for Finishing Strong with a Pacer
• Marathon Pacer Strategy: How to Maintain a Steady Finish Pace
• Insights from a Running Pacer: Guiding Runners to Their Goals