1. Reached the final of the 1991 Pan American Games where he was KO'd in 1 by Savon, won the 1992 U.S. National Championships 2. Having compiled a record of 25-0 against journeymen, Briggs was KO'd in 3 in a "huge upset" by Darroll Wilson, who was in the midst of an eight fight streak where he went the distance with six journeymen, got KO'd in 1 by Tua and only KO'd Briggs 3. Won the lineal title in his 12 round debut against 48 year old final career fight Foreman by "robbery" MD12 ("Wald and Azoff say they have polled 100 boxing people, from writers to trainers, and have found nobody who thinks Briggs won.") 4. Started fast against WBC champion Lewis and hurt him but was ultimately KO'd in 5 5. Drew with Botha over 10 rounds, which Briggs admitted was a "fortunate" result ("I was fortunate to get a draw. He really gave me a beating, physically. And mentally I was really down on myself, because the fight was so hard, gruelling.") 6. Lost to 9-9 Sedreck Fields by MD8, in a fight Briggs admitted was "close" ("It was a close fight. Even though I thought I won.") 7. Came in at a then career heaviest of 268 lbs (having weighed 230 lbs 12 months prior) and lost 90-99 to McCline 8. Came from behind to win the WBO title by KO'ing Liakhovich in the dying seconds of the 12th round, returning to Ring's top 10 following a 7 year absence 9. Came in at an equal career heaviest of 273 lbs and lost 117-111 to Ibragimov, prompting a 2.5 year retirement 10. Somehow given a title shot against WBC champion Vitali, sustained a severe beating and lost 120-107, prompting his final retirement from serious boxing Briggs has the most 1st round KO's among heavyweight champions with 37 (38 if the failed drug test NC isn't omitted from the record), though "only" a 79% KO ratio. He also holds the distinction of being the last American heavyweight titlist prior to Wilder, whose reign began 7.5 years later (by far the longest title drought in American heavyweight history).
I think everyone knows he was a superb crusher of anyone not world-class. When he stopped the lower tier guys they were very often removed from the waking realm. But he was vulnerable and later in his career he was huge and couldn't put any serious work together but he only needed one shot. The Liakhovich win was Briggs in a nutshell did nothing for round after round at that point in his career. Landed a huge shot and closed the fight out. Had a decent career and was a threat to the top guys but other than the Foreman win could never get over the finish line. A big punching glass cannon is always fun except when he's too stupid to call it a day like Vs Vitali.
Aside from 8 of the 9 pro opponents mentioned in the OP, he didn't stop Danny Blake, Dan Wofford, Ken Bentley, Craig Payne or Marion Wilson earlier in his career, or Zumbano Love toward the end of it. So his quality of opposition was generally extremely low, perhaps club level.
Fun to watch in his prime. I like guys like Briggs and hope there are more of them; you don't have to be great to be worth watching. The fight against Lewis is a perfect example. It was a violent fight with Briggs giving as good as he got early on, then of course Lennox took over and got the KO. But that was a fun night of boxing. I'd much rather watching fringe bangers like Briggs than safety first technicians who find a way to lose UDs. Later Briggs was boring because he had no gas tank. He's also lucky to be a functioning human after the licking Vitali put on him.
Briggs had 8 fights against HW title contenders out of 68 and went 3-4-1. He could have easily been 1-7 but the only one to stop him from this group was a prime Lennox Lewis he gave a little scare to. While Vitali beat him pretty badly Briggs is actually Vitalis best win. Briggs also won the USBA and the NABO belt over Chris Koval and Dicky Ryan. Thats 2 of North Americas 3 main regional belts. When you add that to his lineal title, being a 2x world champ and all his knockout accolades he has a fine legacy. Hes his generations Earnie Shavers.
I thought he looked pretty good against Lewis tbh. It made me think his record was a bit better than it is but on closer inspection there's really very little there.
This is something I ponder quite often. All we have to go on is a fighters record, but many fighters are so much more than their record suggests.
Huge first round knockout score. He unfairly became the Lineal HW champion, boxing against Foreman on the back foot. Foreman deserved at least a draw, or according to some a win. The lineal HW title was his "stepping stone". That immediately collapsed in the next fight against Lennox Lewis. Shannon Briggs has a score... Briggs 60 wins 6 losses Holmes 69 wins 6 losses Ali 56 wins 5 losses ... but Briggs is not ATG HW (with a win against Foreman, and with a loss against Foreman he would be ranked even lower).
Briggs is not among Vitali's top wins, he was unranked and probably not in the top 10 guys Vitali beat. He ko'd exactly one top ten heavyweight in his entire career. Pretty thin credentials for a supposed knockout puncher.
Off the top of my head Juan Carlos Gomez Chris Arreola Kevin Johnson Samuel Peter Tomasz Adamek Derek Chisora Corrie Sanders Larry Donald That's 8 guys. Given Briggs was old and past his prime I'd say there's a good chance that Hide and Bean were also better than the version Vitali faced