Wind Pacing: Why Headwinds Hurt More Than Tailwinds Help (Practical Marathon Race Plan)

Why headwinds hurt more than tailwinds help

Wind changes the speed of air flowing past your body. Aerodynamic drag scales approximately with the square of that relative air speed: if relative air speed increases a little, drag increases a lot. Classic running physiology work also found oxygen cost increases with the square of wind velocity when running into wind.

The simple physics (no calculus)

Let v = your running speed through the ground and w = wind speed.

• Headwind: relative air speed ≈ v + w
• Tailwind: relative air speed ≈ v − w
• Drag ∝ (relative air speed)²

Compare the change from “no wind”:

• Headwind penalty scales like: (v + w)² − v² = 2vw + w²
• Tailwind benefit scales like: v² − (v − w)² = 2vw − w²

There’s also a physiology reason tailwinds don’t “pay you back”

Even on a calm day, air resistance is only a slice of your total running energy cost. Pugh’s work estimated air resistance is meaningful (especially at faster speeds) and showed large VO₂ increases in strong winds, but most of your marathon cost is still “internal” (muscle work, braking/propulsion, vertical oscillation, etc.). That means tailwinds can’t magically halve your energy use—at best they reduce one component.

Time makes it worse

In a headwind you slow down, which means you spend more time exposed to headwind. Tailwind exposure is usually shorter because you’re moving faster. So “equal distance with headwind and tailwind” doesn’t translate to “equal time with headwind and tailwind.”

How much does wind matter for marathoners?

It depends on: wind speed, how exposed the course is, your size, your pace, and whether you can draft. Wind cost rises fast because relative air speed is squared, and studies have shown measurable drag forces and measurable oxygen-cost changes as wind increases.

The core rule: pace is a plan, effort is the truth

Treat wind like hills:

• Into headwind: hold effort (HR/RPE), accept slower pace.
• With tailwind: keep effort steady, accept “free speed,” don’t race early.
• Crosswind: still increases relative air speed; shelter and smoothness matter.

If you like a structured approach, pair this with: Marathon pacing by HR & RPE and How to pace the first 10K.

Practical marathon race plan for wind (head/tail/cross)

Step 1: Know where the wind matters

• Look at the course map and mark exposed areas: waterfronts, long straight roads, bridges, open parks.
• Check forecast wind direction and sustained speed (gusts matter too).
• Decide now: “I will pace by effort into headwind. I will not force splits.”

Step 2: Use a 3-phase pacing script

Step 3: One practical “effort shift” rule

On a windy course, your pace should vary more than your effort. But there’s one exception: if the course is clearly split into long headwind vs long tailwind segments, you can usually save time by being slightly more assertive into headwind and slightly more conservative with tailwind. (Not a sprint—just a small, controlled shift.)

• Headwind: +½ to +1 RPE (e.g., “steady” → “controlled work”), but still sustainable.
• Tailwind: −½ RPE (let speed be the reward).

Drafting and packs: the easiest “free watts” in running

In wind, being stubbornly solo is expensive. Drafting reduces aerodynamic drag and can reduce oxygen cost. Classic work found running ~1 m behind another runner “virtually eliminated air resistance” and reduced VO₂ by ~6.5% at middle-distance speeds. Modern reviews also support meaningful benefits from drafting in running.

How to draft without being annoying

• Position slightly behind and to the side (avoid clipping heels).
• In headwind: tuck in more directly behind. In crosswind: “echelon” (slightly offset) on the sheltered side.
• Keep your rhythm; don’t surge just to hold a wheel.
• If you rotate with a group: short turns, smooth transitions, no ego pulls.

Wind technique: what to change (and what not to)

Do

• Relax shoulders and hands. Tension wastes energy.
• Slight forward lean from the ankles (not the waist) into strong headwind.
• Shorten stride slightly, keep cadence. Think “quick, light steps.”
• Run tall but compact. Don’t flare elbows; keep arms close.

Don’t

• Don’t fight gusts with surges. Hold effort steady.
• Don’t overlean. Collapsing at the hips destroys mechanics and breathing.
• Don’t weave. Wind + weaving = extra distance + extra energy.

How to practise wind pacing in training

Session 1: “Effort-anchored” marathon-pace blocks (wind optional)

• Long run with 2 × 6 km @ MP (easy jog between)
• Goal: hold RPE steady; let pace float slightly if wind changes
• Record: RPE start/end of each block + HR trend + whether you surged in gusts

Session 2: Progression long run by RPE

• Start easy (RPE 4), move to steady (RPE 5), finish controlled (RPE 6)
• This builds “feel” so you don’t panic when pace changes in wind

Session 3: Drafting practice (group run)

• Practice sitting behind a runner into wind without surging
• Practice crosswind shelter (slight offset) and smooth transitions

Common mistakes (and fixes)

1. Trying to force goal pace into a headwind.
   Fix: Treat headwind like hills: hold effort, accept slower pace.
2. Surging in tailwind to “make time back.”
   Fix: Use tailwind for free speed at the same effort, not an early race.
3. Running solo in exposed headwind when packs exist.
   Fix: Draft. It’s one of the biggest ROI tactics on windy days.
4. Weaving and micro-sprinting through gusts.
   Fix: Smooth line, smooth effort. Wind punishes variability.
5. Ignoring crosswind.
   Fix: Crosswind still increases relative air speed. Find shelter and stay compact.

FAQ

Why do headwinds hurt more than tailwinds help?

Drag scales with the square of relative air speed, so headwind adds more drag than tailwind removes (the w² term). Also, air resistance is only part of your energy cost, so tailwinds can’t “pay you back” fully.

Should I keep the same pace in a headwind?

Usually no. Hold effort (HR/RPE) and allow pace to slow. Forcing splits into headwind is a common blow-up trigger.

Should I speed up with a tailwind to make time back?

Not aggressively. Keep effort smooth, accept free speed, and save the real push for the final 10–12K.

Does drafting help in a windy marathon?

Yes. Drafting can reduce drag and reduce oxygen cost. Sitting in a pack into headwind is one of the best “free” gains.

What if the wind is crosswind?

Crosswind still increases relative air speed and can be equally annoying in both directions. Use shelter, keep shoulders relaxed, and avoid weaving.

References

1. Pugh LGCE (1971). The influence of wind resistance in running and walking… (VO₂ increases with square of wind velocity; drafting effects). PMC full text · PubMed
2. Pugh LGCE (1970). Oxygen intake in track and treadmill running… effect of air resistance (air resistance cost estimates; wind/velocity scaling). PMC full text · PubMed
3. Davies CTM (1980). Effects of wind assistance and resistance on the forward motion of a runner. PubMed
4. Mesquita RM et al. (2024). Biomechanics of human locomotion in the wind (measured drag in head/tailwind; posture adaptations). Record/summary
5. Beaumont F et al. (2025). Aerodynamic drafting in mass-start non-motorized sports: A systematic review. ScienceDirect
6. Askerdal M et al. (2023/2024). Development of simplified air drag models… (drag ∝ airspeed²; crosswind considerations). PDF

Educational content only. Always follow course rules and race safely in high winds.