Should I be using web service or web scraping for my iPhone app?

I am going to create an iPhone application and it is going to get some information from the website and I am going to display it in my own way. I've read in several places that I shouldn't use web scraping and use web services, but because it only needs to be done once and it will take off the hard work from the server.

What information I am going to grab from the website is the names of the football teams, the date of the upcoming game and the time. So, do you have any pros and cons that I should go with?

Here is the site I want information on:

http://www.gp.se/sport/kommandematcher

How do I go so I can parse this information? Where to begin?