ALMS, Grand Am finally getting hitched.

SPEED reports the American Le Mans Series and the Grand-Am Rolex Sports Car Series are merging. Rumors have swirled around the marriage of the two series for years, but fired up in earnest two weeks ago. Though details are still scarce, SPEED says Grand-Am will likely take on sanctioning duties. The news comes courtesy of unnamed sources, including manufacturers and race participants, who indicate the championship may very well combine classes from both ALMS and the Rolex Series. ALMS President and CEO Scott Atherton has denied the merger, and SPEED says a spokesperson for the Rolex Series declined to comment.

Traditionally, the two race series have been spirited rivals, and while both saw widespread support from manufacturers and privateer teams over the years, entries in key categories have recently declined.

The two won't officially combine until 2014 at the earliest. ALMS recently signed a one-year licensing deal with the sanctioning body behind the Le Mans series in Europe, which means we'll continue to see racing under the ALMS banner for at least one more season. Look for officials to make an official announcement on Wednesday in Daytona Beach, Florida.