# Effect of Wind and Altitude on running

The track and field "Big Red Book" has some data compiled by P.N. Heidenstrom of New Zealand from data from Nobel Laureate A.V. Hill in the 1930's to calculate the effect from wind of a runner of averge size who can run a 100m in 10.10 in still air. It sometimes can help (or hinder) in a 200 but it is not used. In longer races... theoretically it might balance out.. but the nuisance factor usually makes it harder... For the 100 meter a rule of thumb is 0.1mps of wind has an effect of 0.01 on the overall time. (Heidenstrom believes head wind has more of an effect) But the same table is used.
```	wind	effect on time
meters per
second
.1	.01
.2	.02
.03
.03
.04
.05
.06
.07
.08
1.0	.08
.09
.10
.11
.12
.12
.13
.14
.15
.15
2.0	.16
.17
.17
.18
.19
.20
.20
.21
.22
.22
3.0	.23
.23
.24
.25
.25
.26
.26
.27
.28
.28
4.0	.29
.29
.30
.30
.31
.31
.32
.32
.33
.33
5.0	.34
5.5	.36
6.0	.38
6.5	.40
7.0	.41
7.5	.43
8.0	.44
8.5	.45
9.0	.45
9.5	.46
10.0	.46     (22 miles per hour wind)
to convert mps to miles per hour multiply by 2.23693

Altitute factors.....
Higher altitude ... less air resistance  .. good news
less oxygen              bad news
800 meters is break even good/vs bad
over 800 slower times at higher altitude

estimates
2200m (7200ft) subtracts .10 sec in 100, .20 secs in 200 , .35 in 400

200m(700ft)   .01 sec (100m)
520m(1700)    .03      "       (Munich)
(4500)   .06     "        (Provo Utah)

For distance runners it depends how much they have trained at
Altitude.
Horizontal jumpers may gain 2% at 2200m (6 inches for 26 feet)

Wind and Altitude.. not as much as both effects added
ex,  wind adds .10 at 2200m (.10) the benefit is
only .16 not  .20 seconds.

```
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