No one in Major League Baseball really appreciates balls. Pitchers don’t like to throw them. Hitters don’t like to swing at them. Everyone’s rooting for literally anything else to happen—a home run, a stolen base, a strikeout, even a foul ball for God’s sake.

Now, with the League Championship Series underway and the World Series looming, underwear brand SAXX is uplifting the lowly balls—much as its products do—with an amusing campaign inventing a new sabermetric stat called the “Ballgorithm.”

The Ballgorithm creates a value for balls thrown in a single game—base on balls, passed balls, two-balls-no-strike counts, etc. SAXX calls it “an absurd yet totally legitimate take on popular sabermetrics like WAR or OPS.”

To explain it further, SAXX and agency Quality Meats roped in Ivan “Pudge” Rodriguez, the Hall of Fame catcher, well known for his handling of balls, and Eno Sarris, a statistician and senior writer at sports site The Athletic, for the video below.

Fans will be asked to predict the “Ballgorithm” prior to each World Series game and post their guess on social media. Any fans who gets it right will win SAXX underwear for life. The brand will also donate 1,000 times the Ballgorithm number to the Testicular Cancer Foundation after each game.

“Baseball glorifies home runs and stolen bases and strikeouts with all sorts of analytics to value them. But no one pays attention to balls,” said Shawna Olsten, VP of marketing at SAXX. “As a brand devoted to caring for balls everywhere, we wanted to give baseball fans a chance to celebrate them, just like the ones dangling between their legs.”

The gag is very much in keeping with SAXX’s recent wacky marekting efforts (which have included buying Walter White’s old tighty-whities and blowing them up), and also harks back to the brand’s origins—it was founded by a former baseball player who envisioned underwear with an upside-down catcher’s-mitt hammock design (which became the patented Ballpark Pouch).