An above average amateur boxer could train take down defence for 6 months and win a title in MMA. UFC players can't take a punch and usually get brutally KO'd the first time a punch lands on their glass jaws. Petr Yan couldn't win local boxing tournaments as an amateur, yet ran through the most "stacked" division in MMA with ease primarily relying on his basic boxing. Adensanya tried his hand at boxing and lost to club level boxers in New Zealand before he made the switch to MMA.
Boxers don't have the ground game. Only a fool of a MMA fighter would keep an MMA fight in stand up against an experienced boxer. Look what happened to James Toney. Bell rang and the guy just went at Toney's leg, took him down and whooped him.
As with every fight it depends on the individuals involved. There are too many different styles of both, and each style matches up with other styles differently.
Of course there is a chance as they start on the feet which favours the boxer. The issue is the punching distance for a MMA boxer who has to concern himself with takedowns is far different to a boxer. In a boxing fight, an elite boxer has punching technical skills and knowledge of distance that no mma fighter can live with
Depends on the boxer. Depends on the MMA rules (those of UFC are the **ittiest). Asked this way, the question can have dozens of valid answers.
Other than when Ray Mercer knocked out Tim Sylvia, history has shown that boxer cannot just get into the cage without taking time to train and actually adapt to MMA and expect to do any good, even with training I doubt guys like Fury, Wilder and Usyk would be able to do anything to Jon Jones, a mid heavyweight like Marcin Tybura or even an unranked heavyweight like Jake Collier as they are just so far ahead of them in terms of skills. Holly Holm is the most successful but she also had a pretty good Kickboxing background way before MMA and before boxing too so she wasn't just some one dimensional and arrogant fighter. Raphael Butler who was a journeyman boxer had a 9-2 record in MMA including fighting in Bellator, journeyman Javy Ayala choked him out in just over a minute. Another journeyman boxer, Jeremy Williams had a 5-0 MMA record against not exactly the best competition. Like Holm, Jeremy had a background in other Martial Arts and not just boxing way before doing MMA. James Warring tried MMA in the 90's when it was the NHB days, he was a former Kickboxer and IBF Cruiserweight Champion, he was able to win two fights that night by beating a French Muay Thai fighter and a grappler whose hair he held onto for most of the fight, in the finals he was easily taken down by the much smaller Renzo Gracie and submitted. Heather Hardy tried MMA going 2-2 in Bellator and even got pieced up in the stand up in one of her fights. Claressa Shields tried MMA and struggled to beat Britney Elkin who had a 3-6 record, Shields then lost a decision to Abigail Montes who used leg kicks and takedowns to control her, Montes has since lost her last two fights while Shields seems to have forgotten about doing MMA again it seems. Other boxers like Imamu Mayfield, Francois Botha, Art Jimmerson, Yuri Vaulin, Rubin Williams, James Toney, Matt Skelton etc all tried and gotten beaten with little trouble and decided not to do it again.
Honestly Jake Paul could beat most boxers around his size in an MMA fight due to his wrestling background
I would like to see you boxing guys throw your life savings betting a boxer vs an mma guy. Lets see how cocky you are then.