I'm pretty sure Lewis was a 20/1 odds on favourite also. Sanders was a 20/1 underdog to beat Wald. KO2, quite a shock.
Those odds were 13-1, same as Tyson--Alex Stewart. Tyson was a huge 20-1 favorite over Evander in the first fight. He was even a 4-1 favorite in the rematch. With those losses coupled in with the Douglas debacle, it's no wonder lots of folks jumped off that Tyson bandwagon. A couple of those losses kill any profits when you had to give every opponent those long odds.
There have been some big upset since Douglas-Tyson. To me I'd put them like this: 1 Wlad-Sanders Wlad was the next great thing and Sanders was 37 and had fought twice in the previous 2-3 years. This was a stay busy fight for Wlad. 2 Moorer-Foreman Moorer was the undefeated hw champion who had just beat a near prime Holyfield for the title. Foreman was in his mid 40s and his last fight, 18 months prior, he was handlily beaten by Morrison. This was an easy big money payday for Moorer before facing Bowe or Lewis. 3 Lewis-Rahman Lewis was near his peak and on a roll. Rahman wasn't in his league but aleast he was a young, active, top contender unlike Sanders and Foreman. 4 Morrison-Bent Morrison was on a hot streak at the time. He had just beat Foreman and was looking to stay busy until a big fight with Lewis happened. Morrison was 38-1 at the time. Bent was a good amatuer but only 10-1 as a pro. This was suppose to be a quick easy payday for Morrison. 5 Tyson-Holyfield This is probably the biggest upset if you go strictly by the odds. But its obviouls now those odds were way out of wack. This wasn't the Tyson of the late 80s and Holyfield wasn't as washed up as many thought. Tyson should have been the favorite but not to the degree that he was.
For the first fight the Bookies made Tyson a 25-1 Favorite. It dropped to around 6-1 the day of the fight. For the second fight the Bookies made Tyson a 12-1 Favorite. It maintained its standing up until fight night. As for the OP Tyson Holyfield I Lewis Rahman I
15-2 underdog. The betting opened at 25-1, but the bookies were way off. He was still a really big underdog though.
Wlad/Sanders, one of my personal favorites. Sanders got the call on short notice, after others declined to fight Wlad. He was on the golf course when he was asked to come to Germany and face Wlad. The rest was history. Brewster/Wlad, Brewster at that point was written off by most boxing insiders. Has was most known for datting the RnB artist Brandy. He was 15 or 16 months inactive coming into that bout as well, with losses over other journeymen such as Eitenne and Shufford.