Youngest Active UFC Fighters: Alice Pereira Leads in 2026

Quick answer

Alice Pereira is the youngest active UFC fighter at 20.8 years old. Stephen Thompson is the oldest at 43.7. AgentMMA calculated both ages on October 22, 2026, across 740 active fighters with a birth date on file. The roster's median age is 32.4. Here, “active” means a UFC bout within 548 days or a booked UFC fight.

Data snapshot: AgentMMA analysis of 8,950 UFC bouts, covering 740 active fighters with a birth date on file, from 1994-03-11 to 2026-10-17 (computed 2026-10-22).

Youngest active UFC fighters: the full list

Age is measured on the snapshot date, not on each fighter's last fight night. The record column counts UFC bouts only. This is a current-roster list, so it doesn't rank the youngest debutants in UFC history. Fighters tied to one decimal keep the order produced by AgentMMA's database.

Who are the oldest active UFC fighters?

Thompson and Jan Blachowicz both round to 43.7, but Thompson leads the stored age ordering. A booking keeps a fighter inside the active pool even without a recent result. That matters for Thompson, Jim Miller and Jared Cannonier, whose listed fights also confirm their current status.

How this list is counted

AgentMMA starts with fighters who have a date of birth in its database. A fighter qualifies as active after competing in the UFC within the past 548 days. A confirmed booked UFC bout also qualifies them. That rule catches current fighters without treating every unsigned or long-inactive name as active.

Age is the time from the stored birth date to October 22, 2026. It is shown to one decimal place. The median uses all 740 qualifying fighters rather than only the 30 names shown here.

UFC records include UFC bouts and exclude fights in every other promotion. That is why a fighter's UFC record can look much shorter than their professional record. No-contests remain separate from wins, losses and draws.

Another site's list can differ without either table containing a calculation error. It may use the UFC's roster page, a shorter inactivity window, or whole-number ages. It may also lack a recent booking or birth date. The cutoff matters.

Notable names on the list

Alice Pereira

Pereira leads this snapshot at 20.8 and owns a 2-1-0 UFC record. Her official UFC profile also calls her the youngest fighter on the current roster. That outside label matches AgentMMA's result on the computed date.

Stephen Thompson

Thompson heads the older table at 43.7. He is booked to face Charles Radtke at UFC 334 on November 14. The UFC's event listing still showed that matchup when this page was checked.

Raul Rosas Jr.

Rosas sits fourth here at 22.0, level with Regina Tarin to one decimal. The familiar claim that he is “the youngest UFC fighter” refers to history. UFC coverage calls him the youngest athlete to earn a UFC contract at 17, not today's youngest active roster member.

Jim Miller

Miller is fourth among the oldest active fighters at 43.1. His listed UFC record is 28-18-0 (1 NC). He is also booked against Terrance McKinney at UFC 334.

Who could change this list next

• Elijah Smith vs Davey Grant is booked for 2026-11-07, giving Smith the first scheduled chance here to change his UFC record.
• Stephen Thompson vs Charles Radtke is set for 2026-11-14 and keeps the current age leader clearly active.
• Jim Miller vs Terrance McKinney is also listed for 2026-11-14.
• Santiago Luna vs Aleksandre Topuria is booked for 2026-11-21 and could move Luna's 2-1-0 UFC record.

Related AgentMMA pages

• UFC fighter peak age: what the data shows
• Youngest UFC champion
• Undefeated UFC fighters
• Longest UFC win streaks
• Most UFC wins

How solid is this data?

The snapshot covers 740 active UFC fighters with a birth date on file. It draws on 8,950 stored UFC bouts from March 11, 1994, through October 17, 2026. Fighters without a stored birth date cannot enter an age ranking.

Only UFC bouts count toward the UFC records. Fights elsewhere belong in a professional record, where that label appears, but never in a UFC figure. Results follow UFC Stats as stored by AgentMMA. An overturned result counts as a no-contest.

Ages move every day, so October 22, 2026, is the firm as-of date. This maintained page is recalculated when new results, bookings or roster activity change the eligible group. Those updates can alter the order and the records.

FAQ

Who is the youngest active UFC fighter?

Alice Pereira is the youngest active UFC fighter in AgentMMA's October 22, 2026 snapshot. She is 20.8 years old and has a 2-1-0 UFC record.

Who is the oldest active UFC fighter?

Stephen Thompson leads AgentMMA's list at 43.7. Jan Blachowicz also rounds to 43.7, but Thompson ranks first using the stored birth dates.

Is Raul Rosas Jr. still the youngest fighter in the UFC?

No. Rosas is 22.0 in this current-roster snapshot, while Alice Pereira is 20.8. Rosas still holds well-known historical age marks for signing and winning in the UFC.

What is the median age of an active UFC fighter?

The median is 32.4 across 740 active fighters with a birth date on file. Half are younger and half are older on the snapshot date.

How does AgentMMA define an active UFC fighter?

A fighter needs a UFC bout within 548 days or a booked UFC bout. They also need a birth date on file to enter this age table.