‘King’ Callum Walsh, (5-0, 4 KOs), of Cork, Ireland will face Spain’s Leonardo Di Stefano Ruiz, (10-1, 9 KOs), in his Boston, MA debut on the Eve of St. Patrick’s Day, Thursday, March 16.

The event will be hosted at the Agganis Arena (925 Commonwealth Ave., Boston, MA 02215) on the campus of Boston University and broadcast live globally on UFC FIGHT PASS (10:00 p.m. PT / 7:00 p.m. PT).

Said Walsh, “I’m honored to be fighting in Freddie’s hometown and in front of the huge Irish community in Boston, the night before St. Patrick’s Day. We’re deep in training camp at Wild Card Boxing Gym and I look forward to putting on a great show for fight fans on Thursday, March 16 at the Agganis Arena and live on UFC FIGHT PASS.”

The ten-round super welterweight clash headlines ‘Hollywood Fight Nights – Boston: Walsh vs. Ruiz’ presented by Tom Loeffler’s 360 Promotions.

Guided by Hall of Fame trainer Freddie Roach, the hard-hitting Walsh has cultivated an Irish following on both sides of the pond. Prior to turning pro, Walsh was a six-time National Irish Champion and European Gold Medalist.

“I am so happy for Callum.  Fighting in Boston was always special for me, as a fighter and a trainer. Nothing compares to it. Now Callum will experience that excitement. Even better, he will be headlining an event the night before St. Patrick’s Day. That’s the boxing equivalent of winning the Irish Sweepstakes.  It’s been five years since I’ve been in Boston. This will be one heck of a homecoming.” said Roach. 

In Walsh’s most recent fight he stopped previously once-beaten Delen Parsley (13-1), on November 3, 2022, dropping the battle-tested veteran three times before earning the stoppage in round three.

Currently residing in Southern California, the upset minded Di Stefano Ruiz has aggressively sought out Walsh and will have his opportunity now to fight him.