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The endorsements are rolling in for the greatest Beer Mile runner in the world ... who just signed his 2nd major deal in less than a year, TMZ Sports has learned.

The beer god is 22-year-old Lewis Kent -- the reigning Beer Mile world champ who set the world record last year with a time of 4:47 (that includes pounding 4 beers!).

Last year, he became the 1st ever chug-and-runner to land a sponsor -- striking a deal with Brooks running ... and now, he's racked up deal #2.

We spoke with Kent's agent, Kristopher Mychasiw, who tells us ... Kent just inked a 2-year contract to be the face of the National Beer Mile Circuit. While he wouldn't disclose exact numbers, we're told the deal is north of $100k.

Mychasiw says the contract numbers are similar to the Brooks deal.

It's an important deal in the world of Beer Mile running -- 'cause it shows the athletes that you can make real money if you're at the top of the game.

In fact, Mychasiw says some of the elite runners he represents are considering joining the Beer Mile craze -- because they feel there's real opportunity to expand their brands and make some extra coin.