Achieving a personal best (PB) on race day isn’t about luck — it’s often the result of months or years of structured training, smart preparation, and mental resilience.
Whether you’re racing a 5K, marathon, or ultramarathon, success comes down to four key elements:
- Pacing
- Fueling
- Hydration
- Mindset
This email breaks down race-day strategies used by myself, members in our PB Program and guests on The Extramilest Show.
1. Start Smart, Finish Strong
The most crucial factor in racing success is pacing.
The most common mistake runners make is starting too fast — a pattern that repeats across all distances.
Race-day excitement and fresh legs can tempt you to surge early, but I often remind our athletes: “If you shave one minute off in the first few miles, it could cost you five minutes or more later if you start cramping or hitting the wall later on in the race.”
Your pacing strategy should vary by distance:
- 5K & 10K: You can push closer to your max effort, but avoid an all-out sprint at the start.
- Half Marathon: Find your sustainable rhythm early and hold it.
- Marathon: The real race doesn’t begin until the 20-mile (32 km) mark — everything before that is just a long warm up, so learn to hold back.
- Ultramarathon: Energy conservation is even more important; focus on consistent effort rather than pace. Strategic walk breaks early on can make a big difference here.
Remember that even in shorter races where you can push harder, starting too aggressively is the most common reason for missed personal bests. Stay patient and trust your training.
Intensity Discipline on race day:
I experienced the power of disciplined pacing during my Boston Marathon…
In those early miles, I watched dozens of excited runners fly past me. While my pace felt almost too easy, I stayed patient, knowing I wanted to preserve energy for later.
This discipline paid off in those final challenging miles — while many of those early speedsters were now walking or struggling, I maintained my pace and started passing them one by one.
Each pass gave me an extra boost of energy, and reaching the finish line strong was incredibly rewarding.
2. Fueling for Success
Your nutrition strategy should be well-practiced in training — never experiment on race day.
As Andy Blow notes on Extramilest Show #64, “Many runners assume they’re fueling enough, but when we analyze their intake, they’re often under-consuming calories and carbs.”
Fueling needs by distance:
- 5K & 10K: No fuel needed during the race; focus on pre-race nutrition.
- Half Marathon: Some runners perform well without mid-race fueling, but taking in 30-60g carbs per hour can help maintain energy.
- Marathon: Aim for 60-90g of carbs per hour (I have trained my way up to take 1 gel every 20 minutes).
- Ultras: Combine liquid carbs, gels, and real food to change things up and to prevent energy crashes.
Train your gut by progressively increasing carb intake during training sessions. This helps your body adapt to processing nutrition while running, reducing the risk of GI issues on race day.
3. Smart Hydration Strategy
As hydration expert Andy Blow emphasizes, “Dehydration and overhydration both hurt performance. A strategic hydration plan — based on sweat rate — helps you avoid both pitfalls.”
Key hydration principles:
- Races under two hours: Minimal hydration needed unless it’s hot.
- Longer races: Plan electrolyte intake alongside fluids.
- Hot conditions or heavy sweater: Consider preloading with electrolytes.
- High sweat rate: May need 500-1,500mg sodium per hour.
Avoid the common mistake of drinking too much plain water without electrolytes, which can lead to hyponatremia in longer events. Your exact needs will vary based on:
- Weather conditions
- Your personal sweat rate
- Race distance
- Running intensity
4. Build Mental Resilience
Racing tests your mental strength as much as your physical capabilities.
Every runner faces moments when their body and mind urge them to stop. The key to breakthrough performances lies in preparing for these challenges before they arise.
Mental preparation takes many forms…
Visualization helps you rehearse key moments like climbing hills or pushing through fatigue, making you more confident when facing these challenges during the race. Breaking the distance into segments keeps you focused on immediate goals rather than becoming overwhelmed by the full distance ahead.
Simple techniques can transform difficult moments. Smiling, even if you don’t feel like it, can reduce perceived effort. Engaging with spectators through high-fives energizes both body and spirit. Personal mantras provide strength when you need it most, while focusing on running form shifts attention away from discomfort.
Practice these strategies in training so they become automatic responses when you need them on race day.
Execute Your Race Day Plan
Race day success comes down to executing a well-prepared strategy.
While many runners get caught up in the latest gear or technology, the outcome of your race ultimately depends on nailing four fundamental elements: disciplined pacing, proper fueling, smart hydration, and running relaxed.
Think of pacing as your foundation – it’s the skill that matters most.
Even perfect nutrition can’t save a race that starts too fast.
Build your race execution from there: fuel consistently before you feel the need, hydrate according to conditions and your personal needs, and maintain a solution-focused mindset when challenges arise.
Stay flexible and adapt to conditions as they change, but keep your focus on these few important principles.
When you execute these fundamentals well, you’ll not only maximize your chances of achieving a personal best – you’ll actually enjoy the journey to the finish line.
Cheers,
Floris Gierman
P.S. If you’re looking for a structured plan to maximize your training, the Personal Best Program has already helped 1,200+ runners build endurance, avoid injuries, and run stronger year-round. Join us today to improve at your own pace, with expert guidance and a supportive community.
