- April 27, 1996 - Defeated former prospect Mark Connolly in a rematch by UD 4
- July 13, 1996 - Defeated former contender Peter McNeeley by TKO 5
- April 05, 1997 - Defeated former World Heavyweight Champion Michael Dokes by SD 10
- April 24, 2004 - Defeated former Canadian Heavyweight Champion Shane Sutcliffe by unanimous decision to win the vacant CAM (Canadian American Mexican) Heavyweight Title
From Fightnews.com April 25, 2004
The CAM Heavyweight Title belt was up for stakes next as Canada’s Shane “ Kid Thunder” Suttcliffe, ( 25-14-1, 15 ko’s) challenged Denver, Colorado’s Louis Monaco, a veteran of 44 fights, with a sub 500 record, for the vacant title. Monaco was in charge of the 10 round fight throughout, as he relied entirely on a hard body attack for 3 rounds before switching to Suttcliffe’s head. Suttcliffe, a former Canadien Heavyweight Champion, had his moments when he used a double jab and movement, but his legs failed him late leaving him nothing more then batting practice for the charging Monaco who opened cuts over and under suttcliffe’s left eye.Final scores were 96-94,98-92,99-91 for Monaco, who along with his Trainer of 10 years Jimmy Smith, were elated after the fight. “ This guy has worked hard for a long time, never turning down a fight, and he deserved this win.”said Smith. Monaco added, “ When I saw he wasn’t taking advantage of his weight advantage, ( approx 40 lbs.) I knew I could outwork him inside to the body until I start going upstairs.”
From RockyMountainBoxing.com April 25, 2004
Smitty continues to be a corner stone of the boxing scene here in Colorado. His monthly cards have given many fighters their chance in boxing. For some it is the chance to live a dream. For others it can be a way to help make ends meet. I have seen many of Colorado's best fighters debut on his cards. And if you are a boxer in Colorado, chances are you have fought on a card that Smitty has promoted at one time or another. I believe his honesty, attitude and professional approach to the sport carry him along way. He is a straight up kinda guy who is true to his word and he works with everyone, which is very admirable. Even more admirable is the reason by it. He puts his fighters first, not letting his own interests or issues stand in the way of his fighter's success, or payday. He has been training Louis Monaco for quite some time, they have nearly ten years together I believe. Monaco has been in with many of the heavyweight division's biggest names from Butterbean to Buster Douglas, he has seen some good and bad times. He always comes to fight and gives his best regardless of the outcome or odds. He beat Peter McNeeley and Michael Dokes and lost to current champions Vitaly Klitschko and Lamon Brewster. He is a true journey man fighter. And speaking of journey man, you should follow Smitty around for a month or so, see if you can keep up with the 'old man'. Smitty had his own card scheduled Sunday but still took Monaco to Billings, Montana Saturday night. You see he had a title shot. Monaco won the Canadian-American-Mexican belt in a battle with Shane Sutcliffe. That team work and Smitty's selflessness is what got them there. I know some may see that as very insignificant. On a national or world scale, maybe it is, to some degree. But to see how proudly Smitty smiled and to see Louis Monaco holding his head high like the champion he is, shows me the real significance. Congratulations fella's.