NWGA - we have a rodeo come through here once a year and I've yet to get a decent shot.
In the caveman days of film, I burned a lot and got nothing - none as good as yours.
Night rodeo under the lights with a 4.0-5.6 lens just doesn't get it.
Under better light I've gotten some good action shots of soccer, whitewater canoeing, boarding, even with shutter lag on my old Canon G-3.
Part is anticipation, part is luck, part is perserverence, part is knowing the capabilities and limits of your equipment and working within them, or stretching them where possible.
I came; I saw; I shot; I shared.