seo – Long Tail Domain – Multiple Domain

i have a question, for example i have a website for example of score results, you can say that is my main website, with scores, news, whathever. But i buy new domains where is searched a lot on google, if i create in this new domain a 301 redirect to my main website will this have any impact in terms of SEO?

Example:
Main domain: scoreresults.com

Other domains:
scoreresultsintennis.com