Betting website screen scraper

I am looking for a programmer to make a program that will take odds for horse races from around 20 different betting sites and return to me a simple spreadsheet that shows each race and each horse but shows which website is offering the highest odds. I would need this using decimal odds and updating every few minutes. Please be aware that there are horse races everyday and every meeting has a different name and each race has different times and runners. I will only be using UK horse meets. I will need the odds taken directly from the site and not from an outdated oddschecker site. Hope someone can help.