If you can’t get out to the USTA Billie Jean King National Tennis Center in Flushing, N.Y., USOpen.org is the place to be.

The site, created by the USTA and IBM, will offer live streaming of every match aired by ESPN and Tennis Channel, as previously reported, totaling more than 150 matches.

The USTA and IBM are also introducing a new mobile application for the iPhone with special features sponsored by American Express, including live scores, video, news, venue information and USOpen.org Radio with “Ask the Booth,” which allows users to submit questions that will be answered by tennis insiders throughout the tournament. American Express will also offer an interactive grounds map and video content with pro players.

USOpen.org will also feature updates, links and promotions from social-networking sites such as Facebook, Twitter and YouTube.

And the site will host the official U.S. Open Bracket Challenge, which allows fans to fill out U.S. Open brackets online and win prizes.

For Spanish-speaking tennis fans, USOpen.org debuted a Spanish version of its widget, providing scores, headlines and photos, as well as the ability to be posted to blogs, Websites and Facebook pages.

The site will also feature an interactive application that allows fans to see view from their seat from anywhere in Arthur Ashe Stadium, as well as to plot “door-to-Stadium” directions from their homes by foot, mass transportation or car.

USTA chief business officer Pierce O’Neil said:

Our continuous goal is to use new media to bring fans ever closer to the U.S. Open and its participants. By working closely with IBM, we are proud to introduce many new broadband, interactive and mobile features, all designed to allow our fans never-before-seen access to the world’s premier tennis event.

USTA senior director of advanced media Phil Green added:

The USTA is dedicated to leading the way with regards to the digital-media options we offer to tennis enthusiasts. By leveraging all of the interactive tools at our disposal, we allow our fans to access the U.S. Open where ever they are, whenever they want and on whatever device they prefer.

And IBM vice president of client executive marketing Rick Singer said:

It’s incredible to see how the Internet continues to evolve on a daily basis. Given the ongoing change, we’re constantly challenged to stay ahead of the changing needs of U.S. Open fans around the world. This year’s Website does just that by introducing new ways for fans to interact with the tournament wherever they are.