Skip to content
MMA Calendar
FightersONE Featherweight

Oskar Siegert

PolandPoland
Amateur kickboxing 1-0Kickboxing 4-3Muay Thai 6-0
LAST FIGHT
LOSSvs Mohammad SiasaraniUD · R3
ONEONE Friday Fights 122·August 29, 2025

No next fight booked yet. Follow Oskar Siegert to hear the moment one is.

Ask UFCalendar AI

CAREER SUMMARY

Oskar Siegert holds a professional Kickboxing record of 4-3. Siegert also has 6 recorded Muay Thai bouts. Most recent fight: August 29, 2025. Tracked organizations: ONE.

Profile

Height
5'6"168 cm
Team
Klincz Kielce
Nationality
Poland
Birthplace
Poland

Related fighters

Recent & upcoming opponents

Career history

  1. WIN
    vs Mateusz Janik×1Title bout · Title win #1
    Klincz Fight Night 5· Nov 8, 2025· Lightweight· 6-0
    UD
  2. WIN
    vs Michał Królik
    One Punch 4· Oct 4, 2025· Featherweight· 5-0
    TKO
  3. WIN
    vs Rafael Hudson
    One Punch 2· Jan 24, 2025· Featherweight· 4-0
    TKO
  4. WIN
    vs Italo Julio
    Madness Cage Fighting 9· Nov 25, 2023· 3-0
    TKO
    R1 · 2:21
  5. WIN
    vs Nicolas Sanabria
    Klincz Fight Night 3· Nov 4, 2023· 2-0
    TKO
    R2 · 2:06
  6. WIN
    vs Andrey Zelinskiy
    Knockout Art 7· Oct 7, 2017· 1-0
    TKO
    R1 · 0:40

Title bout· ×N = title win number N in that promotion

Frequently asked questions

When does Oskar Siegert fight next?

Oskar Siegert has no confirmed upcoming fight.

Who is Oskar Siegert fighting next?

Oskar Siegert's next opponent has not been announced.

Who did Oskar Siegert fight last?

Oskar Siegert most recently fought Mohammad Siasarani at ONE Friday Fights 122 on Friday, August 29, 2025, LOSS (Unanimous Decision).

What weight class does Oskar Siegert fight in?

Oskar Siegert fights at Featherweight.

How tall is Oskar Siegert?

Oskar Siegert is 5'6" (168 cm) tall.

Where is Oskar Siegert from?

Oskar Siegert is from Poland.

Get Oskar Siegert's fight history and stats as JSON with the MMA Fight Data API →