For example, Chung Il Choi managed to fight for all three years. In that time still managed to fight Navarrete and Limon.
Excluding his comeback fight against Jack Johnson, Jim Jeffries fought only 19 fights in 8 years but managed to fight many of the best fighters out there at the time.
Sean O'Grady only fought for about 7.5 years between 1975-1983, and from age 15 to maybe 23. During that time, he compiled an incredible 86 fights.
Stanley Ketchel only fought for six years, amassing 64 fights, winning the middleweight title, beating the likes of Billy Papke, Mike and Jack Sullivan and Jack O' Brien, and also challanging Jack Johnson for the heavyweight title of the world.
Pete Redemacher Literally started at the top and worked his way down - but i think he managed to drag it out for 5 Years.
Sadly, that was a terrible waste of talent. An olympic gold medalist who in his first two pro fights is matched up with the heavyweight champion of the world plus Zora Folley. For whatever its worth, he did manage to drop Patterson once. What a legacy it would have been had he KO'd Floyd in his first pro fight, right after winning the gold.
Still, even if he had just gotten that one win. Winning the title in a debut match would have been a legacy matched by no one.
He probably had a lot more prior to that. Boxrec probably have about 2% of the total fights that have ever happened.