Your Data
Daily Trainer
Max Cushion
Super Shoe
Racing Spike
Estimated Time Savings
14sec
You could run 14 seconds faster just by switching to XC Spike (avg)!
18:30 → 18:16
Training Shoe
Nike Pegasus 41
10.4oz
Race Shoe
XC Spike (avg)
5.5oz
Weight Saved Per Foot
-4.9 oz
⚡ Rough Estimate
Research by Franz et al. (2012) showed that each 100g (~3.5 oz) of shoe weight reduction improves running economy by ~1%. Treat this as a rough comparison, not a training prescription.
Use this in practice
- Show this to athletes who insist on racing in daily trainers — the math is undeniable.
- XC spikes (5-6 oz) give the biggest advantage on grass/dirt courses. Save super shoes for roads.
- Break in race shoes 2-3 times before racing. Never debut new shoes at a championship meet.
shoe weight comparisons
Practical examples
Race-shoe comparison examples that stay in the same trainer-versus-spike and trainer-versus-super-shoe lane as the converter.
Track workout shoe versus meet-day spike
A useful comparison when the athlete needs to translate shoe weight into a real meet-day choice rather than a hypothetical one.
Distance-event fueling visual
Useful for endurance-heavy tools that need a concrete track/XC reference.
Sprints and field-events visual
Useful when the tool serves sprinters, jumpers, or short-power athletes.