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Calcimator

Hurdle Spacing Calculator

Hurdle placement from race distance and step pattern.

Inputs

s
ft

Results

Inter-Hurdle Stride

3.05 m

≈ 20 smartphones

Stride to First Hurdle1.72 m
Race Distance110 m
Number of Hurdles10
Hurdle Height106.7 cm
Distance to First13.72 m
Distance Between9.14 m
Run-in Distance14.02 m
Average Speed7.86 m/s
Step Frequency2.58 Hz
Total Clearance Time3.3 s
Total Race Strides42
Steps to 1st (Used)8
Steps Between (Used)3
Time To First1.94
Time Run (in)1.88
Running Time10.7
Same Lead LegYes
How to Use This Calculator
  1. Enter Race type, Target race time, and Steps to first hurdle.
  2. Set Steps between hurdles and Natural stride length.
  3. Review the Inter-Hurdle Stride (m) result.
  4. Use Stride to First Hurdle (m) and Race Distance (m) to inform your decision.

What each input means

Race type
1 = 110m H (men), 2 = 100m H (women), 3 = 400m H (men), 4 = 400m H (women).
Target race time
Target finishing time in seconds.
Steps to first hurdle
Number of steps to first hurdle (0 = use standard).
Steps between hurdles
Steps between hurdles (0 = use standard). Sprint hurdles: 3, 400mH: 13-17.
Natural stride length
Your natural running stride length for run-in calculation.

What each result means

Inter-Hurdle Stride
Required stride length between hurdles.
Stride to First Hurdle
Required stride length from start to first hurdle.
Race Distance
Official race distance.
Number of Hurdles
Total hurdles in the race.
Hurdle Height
Official hurdle height.
Distance to First
Distance from start to first hurdle.
Distance Between
Distance between consecutive hurdles.
Run-in Distance
Distance from last hurdle to finish.
Average Speed
Average speed needed for target time.
Step Frequency
Required steps per second between hurdles.
Total Clearance Time
Estimated time spent clearing all hurdles.
Total Race Strides
Approximate total strides in the race.
Steps to 1st (Used)
Steps to first hurdle used in calculation.
Steps Between (Used)
Steps between hurdles used in calculation.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Race type = 1, Target race time = 14, Steps to first hurdle = 0, Steps between hurdles = 0 = 5 input(s) provided
  2. Calculate Inter-Hurdle Stride
    Inter-Hurdle Stride = spec.between / effectiveStepsBetween
    3.05 = 3.05
  3. Calculate Stride to First Hurdle
    Stride to First Hurdle = spec.toFirst / effectiveStepsToFirst
    1.72 = 1.72
  4. Calculate Race Distance
    Race Distance = spec.distance
    110 = 110

Engine last updated . Checked against 2 independently-derived tests — how we verify calculators.

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