The New Delhi Marathon Guide: Training, What to Wear, Nutrition & Recovery

The New Delhi Marathon has a way of bringing runners together like few events can. From first-time runners to seasoned runners chasing a new personal best, race day feels electric. The city wakes up early, the air is cool, nerves are high, and everyone standing on the start line has put in weeks of quiet effort to get there.

If you’re planning to run the 10K or half marathon, preparation goes beyond just clocking kilometres. What you wear, how you train, what you eat, and how you recover all play a role in how strong you feel on race day. Below are some suggestions that will help you show up confident and ready.

What To Wear on Race Day (and During Training)

Comfort beats everything on race morning. Delhi’s February weather is usually cool at the start and warms up as the sun rises, so breathable, lightweight layers work best.

Shoes: Your Most Important Decision

For longer distances like a 10K or half marathon, cushioning and comfort can make a noticeable difference over time. At ASICS, we have launched the GEL-CUMULUS™ 28 for runners looking for smooth, reliable comfort during longer efforts.

The new GEL-CUMULUS™ 28 will offer you a balanced, responsive feel that’ll support both training runs and race day. Its FF BLAST™ MAX cushioning helps create soft, cloud-like landings while still providing a lively toe-off, which can feel especially reassuring as fatigue sets in. The FLUIDRIDE™ outsole is designed to encourage smooth transitions, helping your stride feel consistent as the kilometres add up.

The engineered mesh upper is lightweight and breathable, making it well suited for longer runs and warmer conditions, while PureGEL™ technology adds an extra layer of impact absorption underfoot. If your goal is to stay comfortable, focused, and steady from start to finish, this can be a supportive option to consider.

Apparel: Light, Breathable, Familiar

Many runners find it helpful to stick to clothing they have already trained in. Race day generally isn’t the best time to try something completely new.

●       Top: Lightweight tank tops or breathable running T-shirts that absorb sweat and dry quickly

●       Bottom: Running shorts or leggings that don’t ride up or cause friction

●       Extras: A light layer you can remove after warming up, a cap or visor if you prefer sun protection

The goal is to stay cool, dry, and distraction-free from start to finish. Check out ASICS running apparel, from running shorts to leggings to tees and outerwear, all designed to be most comfortable and functional on your runs.

How To Train for the 10K or Half Marathon

Both distances are endurance events, not sprints. The key difference is duration. A half marathon is more than double the distance of a 10K, which means your training often benefits from volume, pacing, and recovery.

Build a Strong Foundation

Before worrying about speed, it is beneficial to focus on consistency. Easy, conversational runs can help develop aerobic fitness while allowing the body to adapt gradually.

You can add short hill sprints to develop strength and efficiency without overloading your system.

Training Focus for the 10K

If you’re running the 10K, your training plan can benefit from:

●       A few easy runs throughout the week

●       1 quality session (intervals or tempo)

●       1 long run that gradually builds up

Short and controlled intervals, such as repeats at 10K pace, will help you build up your speed. Tempo runs will help you run with a “comfortably hard” effort for longer without burning out.

Training Focus for the Half Marathon

For the half marathon, endurance tends to become the priority.

Long Runs Matter Most
Many runners gradually extend their long runs every couple of weeks, eventually reaching 90 to 120 minutes. These sessions can help the body adapt to longer time on feet and improve fatigue resistance.

In the final days leading up to the race, you can add short sections of race-pace running toward the end of some long runs to prepare your body for finishing strong.

Threshold Training
Half marathons are usually run just below your lactate threshold. Threshold runs can help you hold a strong pace without accumulating excessive fatigue.

It is recommended to start with 20 minutes at a controlled, steady effort. Over time, build this to 30–40 minutes, either continuously or in blocks.

Speed Without Overdoing It
Occasional interval sessions can help maintain leg speed. These are typically controlled efforts slightly faster than your goal half-marathon pace, not all-out sprints. The goal is efficiency, not exhaustion.

Strength Training and Recovery

Strength training is often seen as a helpful complement to running, especially for injury prevention. Two short sessions a week that focus on:

●       Core stability

●       Glutes and hamstrings

●       Single-leg balance exercises

Recovery is just as important. Easy days should feel easy. It is vital to sleep well, fuel properly, and not be afraid to take rest days seriously.

Pre-Race Nutrition: Keep It Simple

What you eat in the days leading up to the race matters more than a single meal.

Before Race Week

Many runners aim for balanced meals with carbohydrates, lean protein, and familiar foods. Gradually increasing carbohydrate intake a few days before race day can help top up energy stores without feeling overly heavy.

Race Morning

Eat what you know works for you. Common options include toast, a bagel, banana, peanut butter, or a sports drink. Eat early enough to allow digestion, and hydrate steadily rather than all at once.

Avoid heavy, fatty, or unfamiliar foods. Race morning is about fuelling, not experimenting.

During the Race

For most 10K runners, water is enough. For half-marathon runners, consider simple carbohydrate sources if you expect to run beyond 75 minutes. Sip fluids regularly and listen to your body.

Post-Race Recovery: Finish Strong, Recover Smarter

Once you cross the finish line, it is important to focus on your recovery.

Within the first hour, carbohydrates and fluids can help replenish energy. Over the next two to three hours, a balanced meal with protein, carbs, and healthy fats supports muscle repair. Gentle walking, light stretching, and good sleep over the following days often help the body reset.

Take pride in what you’ve achieved. Whether it’s your first race or a new personal best, recovery is part of respecting the work you’ve put in.

See You at the Start Line

The New Delhi Marathon is about stories, discipline, and showing up for yourself. Train with patience, wear what supports you, fuel with intention, and recover with care.

On February 22, 2026, thousands of runners will stand on one start line at Jawaharlal Nehru Stadium. Wherever you fall in that crowd, remember that every step you’ve taken in training has already brought you closer to the finish.

Run together. Run stronger.