Event and steps

Changing event loads its original step defaults. Stride comparison stays entered.
Optional measured length for arithmetic comparison. Blank or 0 omits it; use a complete nonnegative decimal such as 2.10.

Between hurdles

3.05 m

110m Hurdles (Men) · 3 steps

9.14 m ÷ 3 = 3.05 m per rhythm unit, including hurdle flight.

This full-gap average is longer than a ground stride. It does not subtract takeoff or landing distance.

To the first hurdle

1.72 m

13.72 m ÷ 8 steps from the start. An average only; acceleration is not modeled.

Reference layout

110m Hurdles (Men) · 110 m race

Start to first hurdle
13.72 m
Between hurdles
9.14 m
Last hurdle to finish
14.02 m
Number of hurdles
10
Men height
1.067 m (42 in)

Read the rule context

These are retained reference layouts, not a complete age-group or state rule selector. The 110mH, 100mH and 400mH heights shown are senior World Athletics examples. The 300mH option uses the NFHS-style eight-hurdle layout; World Athletics uses a different seven-hurdle 300m layout.

World Athletics TR22 describes its layouts. The NFHS 2021 pre-meet table, pages 18–19 supports the retained high-school 300m layout. That dated table is not current eligibility certification; check the meet and current governing rules before setting equipment.

For example, high-school boys’ 110m hurdles may use 39 in rather than the senior 42 in shown. Distances are divided by your selected counts and rounded to 0.01 m. No clearance, acceleration, fatigue or lead-leg model selects the best count for an athlete.