Which is more likely to be struck by lightning, walking or running in thunderstorm weather?

Walking is as easy to be struck by lightning as running.

In thunderstorm weather, being struck by lightning only depends on the following parameters: height, the probability of being struck by lightning, the distance between yourself and the lightning-inducing object, the time you stay in that environment, and luck.

If you run to avoid that environment, the stay time is short, and the probability of being struck by lightning is smaller than that of walking. Generally speaking, the probability of the two is equal.