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CZ

Karel Kolář

Reinders MMA

W–L
0–4
Won and lost rating-eligible matches in the past 12 months.
Gi
1,123
Rating based on Gi matches in the past 12 months.
No-Gi
1,123
Rating based on No-Gi matches in the past 12 months.
Current form
4–6
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

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

    CZ

    Kids / Gi / 10-12 years / Boys / White/grey belt / -50 kg Kids / No Gi / 10-12 years / Boys / Intermediate / -50 kg
    Unconfirmed

  2. N-GEN Kids BJJ Tournament #5

    CZ

    Boys Gi / White grey / Junior I (12-13 yrs) / -50 kg (2013,2014) Boys No-Gi / All belt / Junior I (12-13 yrs) / -50 kg (2013,2014)
    Unconfirmed

  3. 4th Open European championship

    CZ

    GI - Kids boys 10-13y / -50 kg / Grey belt NOGI - Kids boys 10-13y / -50 kg / Intermediate (2-4 years of training) NOGI - Kids boys 10-13y / -50 kg / Beginner (<2 years of training)
    Unconfirmed

  4. GRIND 15 Kids

    CZ

    No-Gi / 13-14 years / Boy / -50 kg / Advanced Gi / 13-14 years / Boy / -50 kg / Beginner
    Unconfirmed

Tournament history

Events

18
Events
Date Event Result Format Division
ADCC Amateur World Championship 2026 PL · No-Gi · 11–12 yo · ≤50 kg 0–1 W–L: Win / Loss No-Gi
  • Place #9
Open Czech championship submission only 2026 CZ · Gi · grey · ≤45 kg ; No-Gi · ≤45 kg 2–1 W–L: Win / Loss GiNo-Gi
  • NOGI - Kids boys 10-13y / -45 kg / Beginner (<2 years of training)
  • GI - Kids boys 10-13y / -45 kg / Grey belt
NAGA Germany Grappling Championship Germany · Gi · 12–13 yo · 40–44.9 kg ; No-Gi · 12–13 yo · 40–44.9 kg 0–4 W–L: Win / Loss GiNo-Gi
  • Children No-Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
  • Children Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
Grappling Industries PRAGUE CZ · Gi · 12–13 yo · white · ≤115 lb ; No-Gi · 12–13 yo · yellow/orange · ≤105 lb 3–4 W–L: Win / Loss GiNo-Gi
  • Place #4
  • Gi Kids / White / 12 - 13 years (Male) / -115 lbs
Pardubice Grappling Open vol.6 CZ · Gi · 11–12 yo · ≤45 kg ; No-Gi · 11–12 yo · ≤50 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Boys Junior No-GI / 11-12 years / -50 kg / Beginner
  • Boys Junior GI / 11-12 years / -45 kg / Beginner
TATAMY 20: PRAGUE - KIDS (round robin) CZ · Gi · 13–14 yo · white/grey · ≤50 kg ; No-Gi · 10–12 yo · ≤50 kg 5–3 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
  • Place #4
TATAMY 19: Czech Open Championship (kids) CZ · Gi · 10–12 yo · white/grey · ≤45 kg ; No-Gi · 10–12 yo · ≤45 kg 3–3 W–L: Win / Loss GiNo-Gi
  • Place #6
  • Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
GRIND 12 Kids (NO-GI & GI ROUND ROBIN) CZ · No-Gi · 10–12 yo · ≤45 kg 1–5 W–L: Win / Loss No-Gi
  • Place #4
ADCC Czech National Championship 2025 CZ · No-Gi · 11–12 yo · ≤50 kg ; No-Gi · 11–12 yo · ≤40 kg 2–2 W–L: Win / Loss No-Gi
  • Boys Junior / 11-12 years / Intermediate / -40 kg
  • Boys Junior / 11-12 years / Beginner / -50 kg
Grappling Industries MILAN IT · Gi · 12–13 yo · grey · ≤115 lb 2–1 W–L: Win / Loss Gi
  • Gi Kids / Grey / 12 - 13 years (Male) / -115 lbs
TATAMY 16 KIDS (No-GI and GI round robin) CZ · Gi · 10–12 yo · white/grey · ≤45 kg 1–3 W–L: Win / Loss Gi
  • Place #5
GRIND 11 Kids (NO-GI & GI ROUND ROBIN) CZ · No-Gi · 10–12 yo · ≤45 kg 3–1 W–L: Win / Loss No-Gi
  • Kids No-Gi / 10-12 years / Boy / -45 kg / Beginners
GRIND 10 NO-GI & GI ROUND ROBIN with kids CZ · Gi · 10–12 yo · ≤50 kg 3–0 W–L: Win / Loss Gi
  • Kids Gi / 10-12 years / Boy / -50 kg / Beginner
Czech championship submission only 2025 Gi/Nogi CZ · Gi · ≤45 kg ; No-Gi · ≤45 kg 2–2 W–L: Win / Loss GiNo-Gi
  • GI - Kids boys 10-13y / -45 kg
  • Place #5
Ground Bjj Tour 3. - only submission - Kladno CZ · Gi · 9–11 yo · ≤50 kg 3–0 W–L: Win / Loss Gi
  • Kids mix 9-11 let / -50kg
Pardubice Grappling Open vol.4 CZ · No-Gi · 11–12 yo · ≤45 kg 1–1 W–L: Win / Loss No-Gi
  • Boys Junior No-GI / 11-12 years / -45 kg / Beginner
TATAMY 15 KIDS (No-GI and GI round robin) CZ · No-Gi · 10–12 yo · ≤45 kg 2–2 W–L: Win / Loss No-Gi
  • Kids / No Gi / 10-12 years / Boys / Beginner / -45 kg
2024 Prague Open CZ · No-Gi · white · ≤47.6 kg 0–1 W–L: Win / Loss No-Gi
  • No Gi Kids Challenger / Boys / White Challenger / Light II (Up to 47.60 kg)

Calculation details

Rating breakdown for the past 12 months

See the published month-end rating and the rating-eligible matches added in each month. Open a month for details.

August 2026 No new matches Change +1 Rating 1,210

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

July 2026 No new matches Change -1 Rating 1,209

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 No new matches Change +1 Rating 1,210

Rating-period composition

Rating matches
4 0
Record
0–4 Previous month 0–4
Opponents
2 0
Events
1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

May 2026 4 new matches Change Starting point Rating 1,209

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.
Loss
May 23, 2026 Matvii Pryhodko
NAGA Germany Grappling Championship Children No-Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
Method Points 03:00 2–6
Marginal influence -7
Loss
May 23, 2026 Matvii Pryhodko
NAGA Germany Grappling Championship Children No-Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
Method Points 03:00 0–6
Marginal influence -7
Loss
May 23, 2026 Anton Ackermann
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
Method Points 03:00 0–17
Marginal influence -11
Loss
May 23, 2026 Matvii Pryhodko
NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
Method Points 03:00 2–11
Marginal influence -18
Relevant matches
2.9
Official ranking percentile
-
Performance
-

2.9 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,403
Repeated-opponent share
50.0%
Network connectivity
87.6%

Classification evidence

Why U14?

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

  • U14 8 event votes Selected outcome

Registrations and outcomes

Open Czech championship submission only 2026
U14 · Counts
GI - Kids boys 10-13y / -45 kg / Grey belt
  • Competition age 13
  • Registered age: u14
  • Source category: u14
NOGI - Kids boys 10-13y / -45 kg / Beginner (<2 years of training)
  • Competition age 13
  • Registered age: u14
  • Source category: u14
NAGA Germany Grappling Championship
U14 · Counts
Children Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Children No-Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Grappling Industries PRAGUE
U14 · Counts
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -105 lbs
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Gi Kids / White / 12 - 13 years (Male) / -115 lbs
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Pardubice Grappling Open vol.6
U14 · Counts
Boys Junior GI / 11-12 years / -45 kg / Beginner
  • Competition age 13
Boys Junior No-GI / 11-12 years / -50 kg / Beginner
  • Competition age 13
TATAMY 20: PRAGUE - KIDS (round robin)
U14 · Counts
Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
  • Competition age 13
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Competition age 13
2026 AGF Prague Championships
U14 · Counts
Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light II (Up to 47.60 kg)
  • Competition age 13
  • Registered age: u14
  • Source category: u14
No Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light II (Up to 47.60 kg)
  • Competition age 13
  • Registered age: u14
  • Source category: u14
TATAMY 19: Czech Open Championship (kids)
U14 · Counts
Kids / No Gi / 10-12 years / Boys / Intermediate / -45 kg
  • Competition age 13
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Competition age 13
GRIND 12 Kids (NO-GI & GI ROUND ROBIN)
U14 · Counts
No-Gi / 10-12 years / Boy / -45 kg / Advanced
  • Competition age 13
Christmas Kids Ground BJJ Tour - Finálové kolo 2025
Does not count
Kluci (12, 13, 14 let) - Kimono / -46 kg
  • Competition age 12
  • Registered age: u14
  • Source category: u14
ADCC Czech National Championship 2025
Does not count
Boys Junior / 11-12 years / Beginner / -50 kg
  • Competition age 12
Boys Junior / 11-12 years / Intermediate / -40 kg
  • Competition age 12
TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Competition age 12
Kids / No Gi / 10-12 years / Boys / Beginner / -45 kg
  • Competition age 12
Grappling Industries MILAN
Does not count
No Gi Kids / Beginner (White) / 10 - 11 years / -105 lbs x
  • Competition age 12
  • Registered age: u12
  • Source category: u12
Gi Kids / Grey / 12 - 13 years (Male) / -115 lbs
  • Competition age 12
  • Registered age: u14
  • Source category: u14
AOM Cup Kids 3
Does not count
Boys NoGi / White / U12 (2015,2014,2013) / -46 kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12
Boys Gi / White / U12 (2015,2014,2013) / -46 kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Competition age 12

Classification evidence

Why ≤ 45 kg?

This outcome uses at most one unambiguous upper weight limit per completed ranking event from 2025-09-01 through 2026-08-31. Only the three most recent eligible events are considered, and the lightest verified upper limit is selected. A higher division is not treated as measured body weight.

Evidence outcome

  • ≤ 45 kg 2 competition events Selected outcome
  • ≤ 50 kg 1 competition event

Registrations and outcomes

Open Czech championship submission only 2026
≤ 45 kg · Counts as a competition event
GI - Kids boys 10-13y / -45 kg / Grey belt
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

1 match in the rating period

Open Czech championship submission only 2026
≤ 45 kg · Counts as a competition event
NOGI - Kids boys 10-13y / -45 kg / Beginner (<2 years of training)
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

2 matches in the rating period

NAGA Germany Grappling Championship
≤ 45 kg · Counts as a competition event
Children Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
  • Registered weight class: 40 - 44.9
  • Source competition limit: 40 - 44.9

2 matches in the rating period

NAGA Germany Grappling Championship
≤ 45 kg · Counts as a competition event
Children No-Gi (Male) / Intermediate / 40 - 44.9 / 12-13 years
  • Registered weight class: 40 - 44.9
  • Source competition limit: 40 - 44.9

2 matches in the rating period

Grappling Industries PRAGUE
≤ 48 kg · Does not count
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -105 lbs
  • Registered weight class: -105 lbs
  • Source competition limit: -105 lbs

4 matches in the rating period · conflicting upper weight limits make this event ambiguous

Grappling Industries PRAGUE
≤ 52 kg · Does not count
Gi Kids / White / 12 - 13 years (Male) / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

3 matches in the rating period · conflicting upper weight limits make this event ambiguous

Pardubice Grappling Open vol.6
≤ 45 kg · Does not count
Boys Junior GI / 11-12 years / -45 kg / Beginner
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

Pardubice Grappling Open vol.6
≤ 50 kg · Does not count
Boys Junior No-GI / 11-12 years / -50 kg / Beginner
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

TATAMY 20: PRAGUE - KIDS (round robin)
≤ 50 kg · Does not count
Kids / No Gi / 10-12 years / Boys / Beginner / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

5 matches in the rating period · outside the three most recent unambiguous events

TATAMY 20: PRAGUE - KIDS (round robin)
≤ 50 kg · Does not count
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

1 match in the rating period · outside the three most recent unambiguous events

2026 AGF Prague Championships
Does not count
Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light II (Up to 47.60 kg)
  • Registered weight class: Light II (Up to 47.60 kg)
  • Source competition limit: Light II (Up to 47.60 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Prague Championships
Does not count
No Gi Kids / Boys / Juniors (12 - 13 yrs) / Gray / Light II (Up to 47.60 kg)
  • Registered weight class: Light II (Up to 47.60 kg)
  • Source competition limit: Light II (Up to 47.60 kg)

No matches in the rating period · no valid weight evidence

TATAMY 19: Czech Open Championship (kids)
≤ 45 kg · Does not count
Kids / No Gi / 10-12 years / Boys / Intermediate / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

3 matches in the rating period · outside the three most recent unambiguous events

TATAMY 19: Czech Open Championship (kids)
≤ 45 kg · Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

2 matches in the rating period · outside the three most recent unambiguous events

GRIND 12 Kids (NO-GI & GI ROUND ROBIN)
≤ 45 kg · Does not count
No-Gi / 10-12 years / Boy / -45 kg / Advanced
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

4 matches in the rating period · outside the three most recent unambiguous events

Christmas Kids Ground BJJ Tour - Finálové kolo 2025
Does not count
Kluci (12, 13, 14 let) - Kimono / -46 kg
  • Registered weight class: -46 kg
  • Source competition limit: -46 kg

No matches in the rating period · no valid weight evidence

ADCC Czech National Championship 2025
≤ 50 kg · Does not count
Boys Junior / 11-12 years / Beginner / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

ADCC Czech National Championship 2025
≤ 40 kg · Does not count
Boys Junior / 11-12 years / Intermediate / -40 kg
  • Registered weight class: -40 kg
  • Source competition limit: -40 kg

2 matches in the rating period · conflicting upper weight limits make this event ambiguous

TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

No matches in the rating period · no valid weight evidence

TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 10-12 years / Boys / Beginner / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

No matches in the rating period · no valid weight evidence

Grappling Industries MILAN
Does not count
No Gi Kids / Beginner (White) / 10 - 11 years / -105 lbs x
  • Registered weight class: -105 lbs
  • Source competition limit: -105 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries MILAN
≤ 52 kg · Does not count
Gi Kids / Grey / 12 - 13 years (Male) / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

3 matches in the rating period · outside the three most recent unambiguous events

AOM Cup Kids 3
Does not count
Boys NoGi / White / U12 (2015,2014,2013) / -46 kg
  • Registered weight class: -46 kg
  • Source competition limit: -46 kg

No matches in the rating period · no valid weight evidence

AOM Cup Kids 3
Does not count
Boys Gi / White / U12 (2015,2014,2013) / -46 kg
  • Registered weight class: -46 kg
  • Source competition limit: -46 kg

No matches in the rating period · no valid weight evidence

TATAMY 16 KIDS (No-GI and GI round robin)
≤ 45 kg · Does not count
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

2 matches in the rating period · outside the three most recent unambiguous events

Classification evidence

Why Grey?

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

  • grey 9 matches in the rating period Selected outcome
  • orange 4 matches in the rating period
  • white 3 matches in the rating period

Registrations and outcomes

Open Czech championship submission only 2026
grey · Counts as a match
GI - Kids boys 10-13y / -45 kg / Grey belt
  • Source belt category: grey

1 match in the rating period

Grappling Industries PRAGUE
white · Counts as a match
Gi Kids / White / 12 - 13 years (Male) / -115 lbs
  • Source belt category: white

3 matches in the rating period

Grappling Industries PRAGUE
orange · Counts as a match
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -105 lbs
  • Source belt category: orange

4 matches in the rating period

TATAMY 20: PRAGUE - KIDS (round robin)
grey · Counts as a match
Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
  • Source belt category: grey

1 match in the rating period

TATAMY 19: Czech Open Championship (kids)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Source belt category: grey

2 matches in the rating period

Grappling Industries MILAN
grey · Counts as a match
Gi Kids / Grey / 12 - 13 years (Male) / -115 lbs
  • Source belt category: grey

3 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
grey · Counts as a match
Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
  • Source belt category: grey

2 matches in the rating period