UFC Shanghai has four flyweight fights. That has happened once.

Four of the thirteen fights the UFC has booked in Shanghai on Saturday are at 125 pounds. I went looking for how often that happens and the answer is: essentially never.

Across every UFC event in our database, excluding the Contender Series and Road to UFC, exactly one card has ever carried more flyweight bouts than UFC Fight Night: Nurmagomedov vs Song. That was UFC Mexico City on February 25, 2024, which had five. Nothing else has reached four. Not a numbered pay-per-view, not an International Fight Week card, not one of the old flyweight-heavy Fight Nights people remember fondly. One card, once, two and a half years ago.

So Saturday is the second-densest flyweight card the promotion has ever run, and it is happening in a building on the wrong side of the world from the UFC's audience, on prelims that start at 3:00 a.m. Eastern.

That is worth ten minutes of your attention, because the four fights are not a random clump. Laid out together they are a remarkably tidy cross-section of how the UFC currently stocks a division: one ranked veteran at the exit, one home-market gatekeeper, two graduates of the developmental tournament, and two undefeated men who have never fought in the promotion at all, one of whom signed his contract 18 days ago.

The four fights

On the main card, Sumudaerji meets Alex Perez, and Bilal Hasan meets Nilson Rojas. On the prelims, Namsrai Batbayar faces André Lima and Rei Tsuruya faces Kevin Borjas.

Perez is the only ranked fighter in the group, sitting at number 11 in the official flyweight board as of Tuesday's snapshot. He is 34, he challenged for the belt at UFC 255 in November 2020, and he is coming off a first-round TKO of Charles Johnson at UFC 324 in January. Everyone else in the bloc is unranked and, with one exception, under 30.

Here is the shape of it:

Five of the eight men have one professional loss or none.

The pipeline is visible from here

Batbayar and Tsuruya both arrived through Road to UFC, the Asian developmental tournament the promotion has now run for several seasons. Tsuruya won his bracket across 2023 and 2024, beating Ronal Siahaan by second-round submission, Mark Climaco by unanimous decision, and Jiniushiyue by first-round TKO. Batbayar finished all three of his: Wataru Yamauchi by TKO in May 2025, Agulali by first-round submission in August 2025, Shuai Yin by first-round TKO in May 2026.

Batbayar's full professional record deserves a line of its own. He is 10-1, and all ten wins are finishes. Not "mostly finishes." All ten, split roughly evenly between submissions and strikes, across Mongolian and Chinese regional shows and then the tournament. His one loss is a 2022 submission to Nyamjargal Tumendemberel, at which point he was 21 years old.

Hasan and Rojas are the other intake channel, and their fight is the one I would point a newcomer at if they wanted to understand how thin the UFC's margin for developmental patience has become. Both are undefeated. Between them they are 17-0 as professionals with 15 stoppages. Neither has fought in the UFC.

And Hasan fought on the Contender Series on August 11, a first-round TKO of Mridul Saikia. That is 18 days before Saturday. He won a developmental contract on a Tuesday night in Las Vegas and is on a UFC main card in Shanghai two and a half weeks later.

I am not going to pretend I know whether that is good for him. Eighteen days is not a training camp; it is a flight, a weight cut, and a plane ride the other way. But it tells you what the promotion thinks it has in the flyweight queue right now, which is more bodies than slots, and a willingness to spend one immediately rather than let a signed prospect go cold for six months.

Kevin Borjas is the connective tissue

The thing that makes this bloc legible rather than just crowded is Borjas, and I only noticed it because our fighter histories merge amateur and professional records into one timeline.

Of the eight flyweights on this card, Borjas has already fought three of them, and he fights the fourth on Saturday.

• He beat André Lima by unanimous decision on June 20, 2026.
• He lost to Sumudaerji by unanimous decision on August 23, 2025, at the Shanghai Indoor Stadium, on the last card the UFC ran in this city.
• He beat Nilson Rojas by unanimous decision on January 19, 2018, on a Peruvian regional show called TWC 5, in what our records list as an amateur bout for Rojas.
• He fights Rei Tsuruya on Saturday.

Add the fifth data point and it gets better: Borjas lost a unanimous decision to Joshua Van at UFC 295 in November 2023, and Van is now the flyweight champion.

He is 11-5 and nobody is arguing he is a contender. That is exactly what makes him useful. Borjas is the reference electrode of this division: a fighter durable enough to keep taking the assignment, competitive enough that the result means something, and now carrying eight years of tape against half the men on this card and the man who holds the belt. When Tsuruya beats him or does not, we will know precisely what that is worth, because four other flyweights in the building have already been graded on the same exam.

What the volume actually means

The division is not shrinking, whatever the periodic "is flyweight going anywhere" discourse suggests. Our data has the UFC running 25 flyweight bouts in 2020, 30 in 2021, 36 in 2022, 40 in 2023, and 47 in 2024. It cooled slightly to 42 in 2025 and sits at 35 through late August of 2026, which is roughly on pace.

What has changed is where the fights are. A card in Shanghai with four flyweight bouts, two Road to UFC graduates, an Indonesian debutant, a Peruvian debutant, a Mongolian, a Japanese prospect and a Chinese veteran headlining the group is not a coincidence of matchmaking. It is a division being built out of the Asian and Latin American developmental programs and then staged in the markets those programs serve.

The cost of that is on the clock. Prelims go at 3:00 a.m. Eastern, main card at 6:00 a.m. In Shanghai it is a 3:00 p.m. and 6:00 p.m. Saturday, which is the point, and our how-to-watch grid has the broadcaster for wherever you are. The densest flyweight card the UFC has assembled since Mexico City will play to an American audience that is mostly asleep.

Sumudaerji, for his part, will fight the ranked man. He is 30, on a three-fight winning streak, and every one of those three wins is a decision: Mitch Raposo by split, Borjas by unanimous, Jesus Aguilar by unanimous. Before that he had lost three of four. The Tibetan Eagle spent five years being a highlight who could not hold a streak and has spent the stretch since April of last year being a grinder who can. Perez, at 34 and ranked, is the first opponent since the turn who can punish the difference.

Beat him and Sumudaerji is ranked, in China, on a card the promotion built partly around him.

That is what four flyweight fights on one Saturday buys you. Not a title picture. An intake, a queue, and one man at the front of it who has been waiting seven years for the door to be this close.