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CZ

Jiří Polzer

Ultimate Gym Brno

≤ 32 kg
W–L
32–6
Won and lost rating-eligible matches in the past 12 months.
Gi
1,540
Rating based on Gi matches in the past 12 months.
No-Gi
1,551
Rating based on No-Gi matches in the past 12 months.
Current form
9–1
Results from the ten most recent rating-eligible matches.
Opponents
28
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

  1. TATAMY 22: BRNO - KIDS (round robin)

    CZ

    Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -36 kg
    Unconfirmed

  3. Grappling Industries AUSTRIA

    AT

    Gi Kids / 10 - 11 years / Yellow/Orange / -75 lbs No Gi Kids / 10 - 11 years / Advanced (Yellow/Orange) / -75 lbs
    Unconfirmed

  4. TATAMY 23: PRAGUE - KIDS (round robin)

    CZ

    Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -36 kg
    Unconfirmed

  6. 2026 AGF Prague Open

    CZ

    Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg) No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg) No Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg) Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
    Unconfirmed

Tournament history

Events

28
Events
Date Event Result Format Division
NAGA Switzerland Grappling Championship CH · Gi · 10–11 yo · 30–34.9 kg ; No-Gi · 10–11 yo · 30–34.9 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
  • Children Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
ADCC AUSTRIAN OPEN 2026 AT · No-Gi · 9–10 yo · ≤36 kg 2–0 W–L: Win / Loss No-Gi
  • Boys 9-10 years / Beginner / -36 kg
ADCC Suisse Open Championship 2026 CH · No-Gi · 9–10 yo · ≤36 kg 0–1 W–L: Win / Loss No-Gi
  • Place #5
TATAMY 20: PRAGUE - KIDS (round robin) CZ · Gi · 10–12 yo · yellow/orange/green · ≤32 kg ; No-Gi · 10–12 yo · ≤32 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 10-12 years / Boys / Intermediate / -32 kg
  • Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
TATAMY 19: Czech Open Championship (kids) CZ · Gi · 10–12 yo · yellow/orange/green · ≤32 kg ; No-Gi · 10–12 yo · ≤36 kg 4–3 W–L: Win / Loss GiNo-Gi
  • Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
  • Place #5
TATAMY 18 KIDS (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤32 kg ; No-Gi · 10–12 yo · ≤32 kg ; No-Gi · 7–9 yo · ≤32 kg 15–1 W–L: Win / Loss GiNo-Gi
  • Kids / Gi / 7-9 years / Mix / All levels / -32 kg
  • Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
  • Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg
ADCC Czech National Championship 2025 CZ · No-Gi · 9–10 yo · ≤28 kg 3–0 W–L: Win / Loss No-Gi
  • Boys Junior / 9-10 years / Intermediate / -28 kg
TATAMY 17 KIDS (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤32 kg ; No-Gi · 7–9 yo · ≤32 kg 7–1 W–L: Win / Loss GiNo-Gi
  • Kids / Gi / 7-9 years / Mix / All levels / -32 kg
  • Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
N-GEN Kids BJJ Tournament #2 CZ · Gi · 7–9 yo · yellow/orange/green · ≤29 kg ; No-Gi · 7–9 yo · ≤32 kg 6–0 W–L: Win / Loss GiNo-Gi
  • Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2016,2017,2018)
  • Boys Gi / Yellow orange green / Pee Wee (7-9 yrs) / -29 kg (2016,2017,2018)
ADCC Amateur World Championship 2025 PL · No-Gi · 9–10 yo · ≤28 kg 0–1 W–L: Win / Loss No-Gi
  • Place #9
TATAMY 15 KIDS (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤28 kg ; No-Gi · 7–9 yo · ≤28 kg 6–3 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
  • Place #5
GRIND 9 NO-GI & GI ROUND ROBIN with kids CZ · Gi · 7–9 yo · ≤28 kg ; No-Gi · 7–9 yo · ≤28 kg 8–0 W–L: Win / Loss GiNo-Gi
  • Kids No-Gi / 7-9 years / Mixed / -28 kg / Beginner
  • Kids Gi / 7-9 years / Mixed / -28 kg / Beginner (4 - 9 years)
TATAMY 13 KIDS (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤28 kg ; No-Gi · 7–9 yo · ≤28 kg 9–0 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
  • Kids / Gi / 7-9 years / Mix / All levels / -28 kg
Pardubice Grappling Open vol.3 CZ · Gi · 6–8 yo · ≤28 kg ; No-Gi · 6–8 yo · ≤28 kg 4–1 W–L: Win / Loss GiNo-Gi
  • Boys Junior GI / 6-8 years / -28 kg / Intermediate
  • Boys Junior No-GI / 6-8 years / -28 kg / Intermediate
XII. GrappleXmas BJJ Cup CZ · Gi · 7–9 yo · white/grey · ≤32 kg ; No-Gi · 7–9 yo · ≤32 kg 7–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / White grey / Pee Wee (7-9 yrs) / -32 kg (2015,2016,2017)
  • Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -32 kg (2015,2016,2017)
N-GEN Kids BJJ Tournament #1 CZ · Gi · 7–9 yo · white/grey · ≤29 kg ; No-Gi · 7–9 yo · ≤29 kg 6–2 W–L: Win / Loss GiNo-Gi
  • Boys No-Gi / All belt / Pee Wee (7-9 yrs) / -29 kg (2015,2016,2017)
  • Boys Gi / White grey / Pee Wee (7-9 yrs) / -29 kg (2015,2016,2017)
Pardubice Grappling Open vol.2 CZ · Gi · 7–10 yo · ≤28 kg ; No-Gi · 7–10 yo · ≤28 kg 3–2 W–L: Win / Loss GiNo-Gi
  • Boys 7-10 years Gi / Beginner / -28kg
  • Boys 7-10 years No-Gi / Beginner / -28kg
AOM Cup Kids 2 CZ · Gi · U9 · white/grey · ≤30 kg ; No-Gi · U9 · white/grey · ≤30 kg 5–1 W–L: Win / Loss GiNo-Gi
  • Boys Gi / White / Grey / U09 (2016,2015) / -30 kg
  • Boys NoGi / White / Grey / U09 (2016,2015) / -30 kg
TATAMY 11 (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤28 kg ; No-Gi · 7–9 yo · ≤28 kg 5–3 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 7-9 years / Mix / All levels / -28 kg
  • Kids / Gi / 7-9 years / Mix / All levels / -28 kg
TATAMY 9 (No-GI and GI round robin) CZ · Gi · 7–9 yo · ≤28 kg 5–1 W–L: Win / Loss Gi
  • Kids / Gi / 7-9 years / Mix / All levels / -28 kg
ADCC Czech Open 2024 CZ · No-Gi · 7–8 yo · ≤28 kg 2–1 W–L: Win / Loss No-Gi
  • Kids Mix 7-8 years / Beginner / -28kg
TATAMY 8 (NO-GI and GI round robin) CZ · Gi · 7–9 yo · ≤28 kg 4–2 W–L: Win / Loss Gi
  • Kids / Gi / 7-9 years / Mix / All levels / -28 kg
TATAMY 7 (NO-GI and GI round robin) CZ · Gi · 7–9 yo · ≤24 kg ; No-Gi · 7–9 yo · ≤24 kg 7–1 W–L: Win / Loss GiNo-Gi
  • Kids / Gi / 7-9 years / Mix / All levels / -24 kg
  • Kids / No Gi / 7-9 years / Mix / All levels / -24 kg
NoEXCUSE! 7 CZ · Gi · ≤24 kg 2–0 W–L: Win / Loss Gi
  • GI - Little Kids Mix / -24 kg
AOM Cup Kids CZ · Gi · 7 yo · white · ≤23 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi / White / Pee Wee I (7yrs) / -23 kg
TATAMY 5 (NO-GI and GI) CZ · Gi · 7–9 yo · ≤24 kg 4–1 W–L: Win / Loss Gi
  • *Kids / Gi / 7-9 years / Mix / All levels / -24 kg
TATAMY 4 (NO-GI and GI) CZ · Gi · 7–9 yo · white/grey · ≤24 kg 2–3 W–L: Win / Loss Gi
  • Place #4
AAC Jiu Jitsu Open GI & NOGI 2022 AT · Gi · 6–7 yo · white · ≤28 kg 0–1 W–L: Win / Loss Gi
  • Boys-Girls Gi / White / 6-7 years / -28 kg

Calculation details

Rating breakdown for the past 12 months

Rating calculations are being updated. Current event, match and opponent details remain visible.

Classification evidence

Why U12?

Within the published period from 2025-09-01 through 2026-08-31, only competition ages recorded at events in the calculation year determine this outcome, with at most one vote per event. Without such an age, the most recent unambiguous earlier competition age is projected to the calculation year; bracket evidence is the final fallback. The newest evidence breaks a tie.

Evidence outcome

  • U12 20 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U12 · Counts
No Gi Kids / 10 - 11 years / Advanced (Yellow/Orange) / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Gi Kids / 10 - 11 years / Yellow/Orange / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
ADCC AUSTRIAN OPEN 2026
U12 · Counts
Boys 9-10 years / Beginner / -36 kg
  • Competition age 10
GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
U12 · Counts
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
ADCC Suisse Open Championship 2026
U12 · Counts
BOYS / 9-10 years / -36 kg
  • Competition age 10
MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
U12 · Counts
Kids Men Gi / U12 (10-11) years / Kids advanced / -34kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
2026 AGF Czech Championships
U12 · Counts
Competition T-shirt / Youth Medium
No Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u14
  • Source category: u14
No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u14
  • Source category: u14
Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
2Brave - Grappling Series 3
U12 · Counts
Kids 7-10 years / 7-10 years / -32 kg
  • Competition age 10
NAGA Germany Grappling Championship
U12 · Counts
Children Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Children No-Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Vienna Open Championship 2026 - Offene Wiener Landesmeisterschaft 2026
U12 · Counts
Jiu Jitsu Gi (BJJ Gi) - Male / U12 / Grey / Yellow Belt (Advanced Kids) / -32 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Grappling Industries PRAGUE
U12 · Counts
No Gi Kids / Advanced (Yellow/Orange) / 10 - 11 years / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Gi Kids / Yellow/Orange / 10 - 11 years / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
NAGA Brussels Grappling Championship
U12 · Counts
Children Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Children No-Gi (Male) / Intermediate / 30 - 34.9 / 10-11 years
  • Competition age 10
  • Registered age: u12
  • Source category: u12
GRIND 13 Kids (NO-GI & GI ROUND ROBIN)
U12 · Counts
No-Gi / 10-12 years / Boy / -32 kg / Advanced
  • Competition age 10
Gi / 10-12 years / Boy / -32 kg / Advanced
  • Competition age 10
ADCC German Open Championships 2026
U12 · Counts
Boys 7-10 years / Beginner / -32Kg
  • Competition age 10
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
U12 · Counts
Boys No-Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Boys Gi (under 16 y.o.) / Orange / 10-11 years / -38 kg
  • Competition age 10
  • Registered age: u12
  • Source category: u12
TATAMY 20: PRAGUE - KIDS (round robin)
U12 · Counts
Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
  • Competition age 10
Kids / No Gi / 10-12 years / Boys / Intermediate / -32 kg
  • Competition age 10
Grappling Industries NUREMBERG
U12 · Counts
No Gi Kids / Advanced (Yellow/Orange) / 10 - 11 years / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Gi Kids / Yellow/Orange / 10 - 11 years / -75 lbs
  • Competition age 10
  • Registered age: u12
  • Source category: u12
2026 AGF Prague Championships
U12 · Counts
Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u14
  • Source category: u14
No Gi Kids Challenger / Boys / Regular Challenger / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u14
  • Source category: u14
No Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
Gi Kids / Boys / Pre Teen (10 - 11 yrs) / Yellow / Feather II (Up to 34.00 kg)
  • Competition age 10
  • Registered age: u12
  • Source category: u12
TATAMY 19: Czech Open Championship (kids)
U12 · Counts
Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
  • Competition age 10
Kids / No Gi / 10-12 years / Boys / Intermediate / -36 kg
  • Competition age 10
Pardubice Grappling Open vol.5
U12 · Counts
Boys Junior GI / 9-10 years / -32 kg / Intermediate
  • Competition age 10
Boys Junior No-GI / 9-10 years / -32 kg / Intermediate
  • Competition age 10
SUBMISSION ONLY EUROPEAN CHAMIONSHIP 2026 - SOLT
Does not count
NO-GI KIDS / Boys / 10 - 12 years / 32 kg
  • Registered age: u12
  • Source category: u12
GRIND 12 Kids (NO-GI & GI ROUND ROBIN)
U12 · Counts
No-Gi / 7-9 years / Mixed (4 - 9 years) / -32 kg / Mixed (4 - 9 years)
  • Competition age 10
Gi / 7-9 years / Mixed / -32 kg / Mixed (4 - 9 years)
  • Competition age 10
TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 10-12 years / Boys / Beginner / -32 kg
  • Competition age 9
Kids / Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi
Does not count
Kids Men Gi / U10 (8-9) years / Kids advanced / -30kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
ADCC Czech National Championship 2025
Does not count
Boys Junior / 9-10 years / Intermediate / -28 kg
  • Competition age 9
ADCC Suisse Open Championship 2025
Does not count
BOYS / 9-10 years / Intermediate / -32 kg
  • Competition age 9
Fight2Submit Graz Open
Does not count
Boys Gi / Yellow / Pee Wee III (9yrs) / -30,40 kg
  • Competition age 9
  • Registered age: u10
  • Source category: u10
TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
Grappling RIVALS 5 GI + NO-GI & KIDS
Does not count
Kids - No Gi / 7-9 years / Mix (boys and girls 4-9 years) / All levels (boys and girls 4-9 years) / -32 kg
  • Competition age 9
Kids - Gi / 7 - 9 years / Mix (boys and girls 4-9 years) / All levels (boys and girls 4-9 years) / -32 kg
  • Competition age 9
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
Kids / No Gi / 7-9 years / Mix / All levels / -32 kg
  • Competition age 9
ADCC European, Middle East & African Championship 2025
Does not count
Boys 9-10 years / Beginner / -32Kg
  • Competition age 9

Classification evidence

Why Green?

This outcome uses the belt category of every rating-eligible match from 2025-09-01 through 2026-08-31. The most-fought category is selected; the newest evidence breaks a tie.

Evidence outcome

  • green 5 matches in the rating period Selected outcome

Registrations and outcomes

TATAMY 20: PRAGUE - KIDS (round robin)
green · Counts as a match
Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
  • Source belt category: green

2 matches in the rating period

TATAMY 19: Czech Open Championship (kids)
green · Counts as a match
Kids / Gi / 10-12 years / Boys / Yellow/orange/green belt / -32 kg
  • Source belt category: green

3 matches in the rating period