This combat sports weekend is being taken over by UFC 300, a landmark event to be held Saturday at T-Mobile Arena in Las Vegas, allowing the nearly 25-year-old mixed martial arts institution to flex its growth while producing a card stacked with current and former champions and elite prospects.

As boxing effectively steps aside to let its combat-sports sibling enjoy the spotlight, we wondered: Is the sweet science even capable of staging this deep of a card given the contrasting financial models?

Consider the UFC 300 slate first:

The main event pits light heavyweight champion Alex Pereira versus top-ranked contender Jamahal Hill. The co-main offers women’s strawweight champion Zhang Weili of China against her countrywoman Yan Xiaonan.

And established veterans, including longtime all-action contender Justin Gaethje and former champions Max Holloway, Holly Holm, Jiri Prochazka and Aljamain Sterling are slotted among the top eight bouts, which also include possible future champions Bo Nickal and Kayla Harrison, a former Olympic judo champion making her UFC debut against Holm.

“Big difference – [the UFC] control[s] the purses of their fighters way more than we do,” said veteran Top Rank promoter Bob Arum, estimating that the UFC contingent are paid 20 percent of the company’s gross profits while boxers typically earn 80 percent of their promoters’ profits.

“The only place we could do something like this is Saudi Arabia, where the economics are much different. In Saudi Arabia, if an extra fight costs $5 million, no problem, because they want to establish Riyadh as a big entertainment center.”

Imagining boxing bouts comparable to those on the UFC 300 card, BoxingScene came up with this:

For the second pre-pay-per-view preliminary bout, the UFC has a women’s bantamweight fight pitting former champion Holm – best known for knocking out Ronda Rousey – against Harrison, who moved over from the Professional Fighters League.

The boxing equivalent could be former U.S. Olympian Marlen Esparza defending her flyweight belt against Gabriela Fundora, the titleholder sister of new junior middleweight titlist Sebastian Fundora.

Although UFC purses aren’t revealed until after the fight card, and often don’t include post-fight or discretionary bonuses, we asked Arum to estimate the total purse money of the eight bouts we dreamed up as UFC 300 equals.

Arum’s estimated purse for Esparza-Fundora: $800,000

The next UFC 300 prelim is the return of former champion Sterling, now the second-ranked featherweight, facing veteran Calvin Kattar.

A boxing equivalent would be featherweight titleholder Leigh Wood versus Cuba’s Robiesy Ramirez, ranked No. 8 by The Ring magazine.

Arum’s estimated purse for Wood-Ramirez: $1.5 million

Former light heavyweight champion Jiri Prochazka closes the prelim portion of UFC 300 versus fifth-ranked Aleksandr Rakic.

A boxing equivalent might be former light heavyweight titleholder Oleksandr Gvozdyk versus former super middleweight titlist Callum Smith.

Arum’s estimated purse for Gvozdyk-Smith: $2 million

The UFC 300 pay-per-view card opens with hot middleweight prospect Nickal meeting Cody Brundage.

A boxing equal at middleweight might be unbeaten Elijah Garcia versus Ammo Williams.

Arum’s estimated purse for Garcia-Williams: $750,000

The stakes rise as the card continues, and UFC 300 offers a quality lightweight tilt between top-ranked Charles Oliveira and fourth-ranked Arman Tsarukyan.

In boxing, ascending lightweights of similar ilk would be unbeatens William Zepeda and Raymond Muratalla.

Arum’s estimated purse for Zepeda-Muratalla: $1 million

Arum paused at the “making” of this fight and accentuated his “main point” of this entire exercise.

“When you look at Zepeda-Muratalla, [Zepeda promoter] Oscar [De La Hoya] may want that fight more than I do, and could tell the guys, ‘I’ll pay you double that to come on DAZN,’” Arum said. “That escalates the price of that fight. And now I can’t get it on this card.”

“The UFC doesn’t have to deal with that problem. Well, I guess they do because they just paid some antitrust damages. … I’m not going to get sued for antitrust because I’m competing with [rival promoters] Al [Haymon], Oscar, Eddie [Hearn] and Frank [Warren], but [the UFC] really has no one competing. That’s why I say the only way a card like this gets done with us is if it’s over in Saudi Arabia.”

In Riyadh, Turki Alalshikh – Saudi Arabia’s chairman of the General Entertainment Authority – has overseen some lucrative, loaded cards, including last month’s show headlined by a reported $70 million main event featuring former heavyweight champion Anthony Joshua versus former UFC champion Francis Ngannou, whose reported piece of the pie was $20 million – shattering his former UFC earnings.

That card also featured former heavyweight titleholder Joseph Parker, a junior middleweight title scrap and featherweight title bout.

Domestic boxing promoters “have to either make money or at least not lose money to keep their business going, so it’s almost impossible to do a big card without an outside factor like the Saudi’s support,” Arum said.

Arum was quick to remind that, in a way, UFC did have to elevate its purses by agreeing last month to pay a $335 million settlement in response to class-action lawsuits filed by former fighters alleging the UFC sought to act as a monopoly and limit the fighters’ interest in maximizing their income.

“You can’t equate the economics in boxing with the economics in the UFC, which is a quasi-monopoly,” Arum said.

When told that the divide of dollars was nevertheless interesting to look at, the sometimes ornery promoter cracked, “No, it isn’t … .

“I have to feed all those who work for me, and then keep making money so I can keep them all employed,” Arum said. “It’s not an honest look at two similar business models unless you’re talking about the disparity in the different cut the [UFC fighters and boxers] get from the profits.”

Just below the UFC 300 co-main, rugged and entertaining slugger Gaethje meets former champion Holloway in a lightweight bout.

Similar to that is an upcoming real-life bout that Arum’s Top Rank is promoting in Perth, Australia, next month between former three-division champion Vasiliy Lomachenko and former lightweight champion George Kambosos Jr.

Arum’s estimated purse for Lomachenko-Kambosos: $5 million

The all-China women’s co-main strawweight title fight at UFC 300 mirrors the recent undisputed minimumweight title fight that Arum staged in Glendale, Arizona, between then-unified champions Seniesa Estrada and Yokasta Valle.

Arum’s estimated purse for Estrada-Valle: $600,000

As for the UFC 300 main event between Pereira and Hill, the light heavyweight equivalent in boxing would be three-division champion Artur Beterbiev of Russia versus popular Mexican-American David Benavidez.

Arum’s estimated purse for Beterbiev-Benavidez: $15 million

That equates to a $26.5 million boxing card, a financial threshold that Arum reminds are assembled few and far between in the sport, with the exception of a top-heavy Saul “Canelo” Alvarez card and the Middle East events.

“We usually work our prospects on to cards in four- to six-round fights. … If we tried to do eight of these types of fights – all 10- to 12-rounders – it’d be like an old baseball doubleheader,” Arum said. “Who’s going to sit through that?

“The UFC fights are five rounds, max. If I did 10 fights, total, I’d have to start the card at noon, and people would be eating lunch and dinner at the arena. Most people aren’t going to do that.”

Arum would be there, of course – but, then again, he’s a boxing lifer who on Wednesday boards a flight leaving the UFC festivities in Las Vegas behind so he can attend Top Rank’s ESPN-televised card from Corpus Christi, Texas.