How about for like horseracing are there any good strategies for it or just luck
Wrong mate because if you can assess each horsemen and the horse itself ? There is a big chance to find what or which horse to get in the first place same as the second.
Remember that this sport is one of the oldest and yeah something that our ancestors have been playing and betting.
There is luck but there are knowledge and ability to find which horse will give you winning .
As much as I agree with you, I would also like to point out to the fact that acquiring such knowledge of being able to correctly know which horse, as well as the horse man, that will come first, a second on a horse race; will require a great amount time you always following the game.
On my personal note, I would say that to reach the above level, or to have a chance to be able to correct guess at times, one have to have spent nothing less than five years following and watching all horse races and identifying with every single horse in all the race, as well as their riders (for the horse race where riders are required).
Anything outside of the above, I would say that betting on horse racing and winning is totally dependent on luck.
My simple opinion based on my personal experience.