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Istamul Taisumov

Champions Factory

W–L
3–2
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,275
Rating based on No-Gi matches in the past 12 months.
Current form
3–2
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

24
Events
Date Event Result Format Division
ADCC AUSTRIAN OPEN 2026 AT · No-Gi · 15–17 yo · ≤55 kg 0–1 W–L: Win / Loss No-Gi
  • Boys Juniors 15-17 years / Intermediate / -55 kg
2Brave - Grappling Series 3 AT 0–0 W–L: Win / Loss Gi
  • Gold
Grappling RIVALS 5 GI + NO-GI & KIDS CZ 0–0 W–L: Win / Loss No-Gi
  • Gold
2025 AGF Prague Open CZ · No-Gi · ≤56.7 kg 1–0 W–L: Win / Loss No-Gi
  • No Gi Kids Challenger / Boys / Regular Challenger / Middle I (Up to 56.70 kg)
STEEL CITY BJJ AT · No-Gi · white · ≤55.5 kg 1–1 W–L: Win / Loss No-Gi
  • No Gi Male / Rooster -55,5kg / White
ADCC AUSTRIAN NATIONALS OPEN 2025 AT · No-Gi · 15–17 yo · ≤55 kg 1–0 W–L: Win / Loss No-Gi
  • Boys Juniors 15-17 years / Beginner / -55 kg
ADCC European, Middle East & African Championship 2025 PL 0–0 W–L: Win / Loss No-Gi
  • Boys 15-17 years / Beginner / -50 kg
ADCC AUSTRIAN OPEN 2025 AT · No-Gi · 15–17 yo · ≤55 kg 1–1 W–L: Win / Loss No-Gi
  • Boys Juniors 15-17 years / Beginner / -55 kg
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament AT · Gi · U18 · white · ≤56 kg ; No-Gi · U18 · white · ≤56 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Juvenile Boys Gi / White / U 18 / -56 kg
  • Juvenile Boys No-Gi / White / U18 (16-17 yrs) / -56 kg
ADCC Amateur World Championship 2025 PL · No-Gi · 15–17 yo · ≤50 kg 2–0 W–L: Win / Loss No-Gi
  • Boys 15-17 years / Boys 15-17 years / -50 kg
Grappling Industries AUSTRIA AT · Gi · 14–15 yo · yellow/orange · ≤125 lb ; No-Gi · 14–15 yo · yellow/orange · ≤115 lb 4–0 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Yellow/Orange / 14 - 15 years (Male) / -125 lbs
  • No Gi Kids / Advanced (Yellow/Orange) / 14 - 15 years (Male) / -115 lbs
TATAMY 12 (No-GI and GI round robin) CZ 0–0 W–L: Win / Loss Gi
  • Gold
2024 Prague Open CZ · Gi · ≤52.2 kg ; No-Gi · ≤52.2 kg 2–0 W–L: Win / Loss GiNo-Gi
  • No Gi Kids Challenger / Boys / Regular Challenger / Light III (Up to 52.20 kg)
  • Gi Kids Challenger / Boys / Regular Challenger / Light III (Up to 52.20 kg)
CEC - Grappling Series 02 AT · Gi · 15–17 yo · ≤55 kg 2–0 W–L: Win / Loss Gi
  • Juvenile 15-17 years / Beginner / -55 kg
Grappling Industries AUSTRIA AT · Gi · 14–15 yo · yellow/orange · ≤125 lb ; No-Gi · 14–15 yo · yellow/orange · ≤125 lb 4–0 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Yellow/Orange / 14 - 15 years (Male) / -125 lbs
  • No Gi Kids / Advanced (Yellow/Orange) / 14 - 15 years (Male) / -125 lbs
NAGA Europe Grappling Championship Germany · No-Gi · 14–15 yo · 45–49.9 kg 2–0 W–L: Win / Loss No-Gi
  • Teens No-Gi (Male) / Expert / 45 - 49.9 / 14-15 years
TATAMY 11 (No-GI and GI round robin) CZ 0–0 W–L: Win / Loss Gi
  • Gold
Grappling Industries BERLIN Germany · No-Gi · 14–15 yo · white · ≤125 lb 2–0 W–L: Win / Loss No-Gi
  • No Gi Kids / Beginner (White) / 14 - 15 years (Male) / -125 lbs
CEC - Grappling Series 01 AT · Gi · 11–14 yo · ≤50 kg 4–0 W–L: Win / Loss Gi
  • Kids / 11-14 years / -50 kg
Styrian Open Championship 2024 BJJ / Jiu Jitsu Gi, Fighting, Duo System Tournament AT · Gi · U16 · white/grey · ≤50 kg 2–0 W–L: Win / Loss Gi
  • Boys Gi / White / Grey / U16 (13 - 14yrs) / -50 kg
ADCC Amateur World Championship 2024 PL · No-Gi · 13–14 yo · ≤50 kg 1–2 W–L: Win / Loss No-Gi
  • Place #4
TATAMY 9 (No-GI and GI round robin) CZ · Gi · 13–14 yo · white/grey · ≤55 kg ; No-Gi · 13–14 yo · ≤55 kg 10–0 W–L: Win / Loss GiNo-Gi
  • Kids / No Gi / 13-14 years / Boys / Beginner / -55 kg
  • Kids / Gi / 13-14 years / Boys / White/grey belt / -55 kg
Grappling Industries VIENNA AT · No-Gi · 14–15 yo · grey · ≤125 lb 2–1 W–L: Win / Loss No-Gi
  • No Gi Kids / Intermediate (Grey) / 14 - 15 years (Male) / -125 lbs
ADCC Czech Open 2024 CZ · No-Gi · 13–14 yo · ≤55 kg 2–0 W–L: Win / Loss No-Gi
  • Boys 13-14 years / Beginner / -55 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 +8 Rating 1,275

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 0
Events
4 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 0 Rating 1,267

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
5 0
Events
4 0

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

June 2026 1 new match · 6 left period Change -102 Rating 1,267

Rating-period composition

Rating matches
5 -5
Record
3–2 Previous month 8–2
Opponents
5 -1
Events
4 -1

6 older matches left the 12-month period: 5 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
June 28, 2026 Zaher Hallal
ADCC AUSTRIAN OPEN 2026 Boys Juniors 15-17 years / Intermediate / -55 kg
Method Points 05:00 2–4
Marginal influence -35
May 2026 No new matches · 4 left period Change -76 Rating 1,369

Rating-period composition

Rating matches
10 -4
Record
8–2 Previous month 12–2
Opponents
6 -3
Events
5 -2

4 older matches left the 12-month period: 4 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

April 2026 No new matches Change 0 Rating 1,445

Rating-period composition

Rating matches
14 0
Record
12–2 Previous month 12–2
Opponents
9 0
Events
7 0

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

March 2026 No new matches Change 0 Rating 1,445

Rating-period composition

Rating matches
14 0
Record
12–2 Previous month 12–2
Opponents
9 0
Events
7 0

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

February 2026 No new matches Change -1 Rating 1,445

Rating-period composition

Rating matches
14 0
Record
12–2 Previous month 12–2
Opponents
9 0
Events
7 0

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

January 2026 No new matches Change 0 Rating 1,446

Rating-period composition

Rating matches
14 0
Record
12–2 Previous month 12–2
Opponents
9 0
Events
7 0

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

December 2025 No new matches Change 0 Rating 1,446

Rating-period composition

Rating matches
14 0
Record
12–2 Previous month 12–2
Opponents
9 0
Events
7 0

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

November 2025 No new matches · 4 left period Change -66 Rating 1,446

Rating-period composition

Rating matches
14 -4
Record
12–2 Previous month 16–2
Opponents
9 -3
Events
7 -2

4 older matches left the 12-month period: 4 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

October 2025 No new matches · 5 left period Change -44 Rating 1,512

Rating-period composition

Rating matches
18 -5
Record
16–2 Previous month 21–2
Opponents
12 -3
Events
9 -2

5 older matches left the 12-month period: 5 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

September 2025 4 new matches · 1 left period Change -13 Rating 1,556

Rating-period composition

Rating matches
23 +3
Record
21–2 Previous month 19–1
Opponents
15 +2
Events
11 +2

1 older matches left the 12-month period: 1 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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.
Win
September 27, 2025 Franciszek Kozioł
2025 AGF Prague Open No Gi Kids Challenger / Boys / Regular Challenger / Middle I (Up to 56.70 kg)
Method Submission 01:45 5–0
Marginal influence +19
Loss
September 20, 2025 Matthias Schneiberg
STEEL CITY BJJ No Gi Male / Rooster -55,5kg / White
Method Points 0–0
Marginal influence -41
Win
September 20, 2025 Ali Jani
STEEL CITY BJJ No Gi Male / Rooster -55,5kg / White
Method Points 0–0
Marginal influence +31
Win
September 14, 2025 Servet Bozkurt
ADCC AUSTRIAN NATIONALS OPEN 2025 Boys Juniors 15-17 years / Beginner / -55 kg
Method Submission 03:12 2–0
Marginal influence +37
Relevant matches
4.7
Official ranking percentile
-
Performance
6.0 pp above expectation

4.7 weighted matches against 5 different opponents across 4 events

Weighted win rate
57.0%
Expected win rate
51.0%
Average opponent rating
1,260
Repeated-opponent share
0.0%
Network connectivity
80.9%

Classification evidence

Why U18?

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

  • U18 4 event votes Selected outcome

Registrations and outcomes

ADCC AUSTRIAN OPEN 2026
U18 · Counts
Boys Juniors 15-17 years / Intermediate / -55 kg
  • Competition age 17
MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
U18 · Counts
Men No Gi / Blue / Adult / -55,5 kg (Rooster)
  • Competition age 17
  • Registered age: u18
  • Source category: u18
2Brave - Grappling Series 3
Does not count
Juvenile 15-17 years / 15-18 years / -55 kg
  • Competition age 17
NAGA Germany Grappling Championship
U18 · Counts
Teens No-Gi (Male) / Expert / 50 - 54.9 / 16-17 years
  • Competition age 17
  • Registered age: u18
  • Source category: u18
NAGA Brussels Grappling Championship
U18 · Counts
Teens No-Gi (Male) / Expert / 50 - 54.9 / 16-17 years
  • Competition age 17
  • Registered age: u18
  • Source category: u18
TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 15-18 years / Boys / Intermediate / -55 kg
  • Competition age 16
TATAMY 17 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 15-18 years / Boys / Beginner / -55 kg
  • Competition age 16
Grappling Industries AUSTRIA
Does not count
Gi Teens / Male / Blue / 16 - 17 years / -115 lbs x
  • Competition age 16
  • Registered age: u18
  • Source category: u18
No Gi Teens / Male / Advanced (Blue) / 16 - 17 years / -115 lbs x
  • Competition age 16
  • Registered age: u18
  • Source category: u18
Grappling RIVALS 5 GI + NO-GI & KIDS
Does not count
Kids - No Gi / 15-18 years / Boy / Beginner (10-18 years) / -60 kg
  • Competition age 16
2025 AGF Prague Open
Does not count
No Gi Kids Challenger / Boys / Regular Challenger / Middle I (Up to 56.70 kg)
  • Competition age 16
  • Registered age: u18
  • Source category: u18
STEEL CITY BJJ
Does not count
No Gi Male / Rooster -55,5kg / White
  • Competition age 16
  • Registered age: u18
  • Source category: u18
TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 15-18 years / Boys / Intermediate / -55 kg
  • Competition age 16
ADCC AUSTRIAN NATIONALS OPEN 2025
Does not count
Boys Juniors 15-17 years / Beginner / -55 kg
  • Competition age 16
ADCC European, Middle East & African Championship 2025
Does not count
Boys 15-17 years / Beginner / -50 kg

Classification evidence

Why ≤ 55 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

  • ≤ 55 kg 1 competition event Selected outcome
  • ≤ 56 kg 1 competition event
  • ≤ 57 kg 1 competition event

Registrations and outcomes

ADCC AUSTRIAN OPEN 2026
≤ 55 kg · Counts as a competition event
Boys Juniors 15-17 years / Intermediate / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

1 match in the rating period

MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
Does not count
Men No Gi / Blue / Adult / -55,5 kg (Rooster)
  • Registered weight class: -55,5 kg (Rooster)
  • Source competition limit: -55,5 kg (Rooster)

No matches in the rating period · no valid weight evidence

2Brave - Grappling Series 3
Does not count
Juvenile 15-17 years / 15-18 years / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

No matches in the rating period · no valid weight evidence

NAGA Germany Grappling Championship
Does not count
Teens No-Gi (Male) / Expert / 50 - 54.9 / 16-17 years
  • Registered weight class: 50 - 54.9
  • Source competition limit: 50 - 54.9

No matches in the rating period · no valid weight evidence

NAGA Brussels Grappling Championship
Does not count
Teens No-Gi (Male) / Expert / 50 - 54.9 / 16-17 years
  • Registered weight class: 50 - 54.9
  • Source competition limit: 50 - 54.9

No matches in the rating period · no valid weight evidence

TATAMY 18 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 15-18 years / Boys / Intermediate / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 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 / 15-18 years / Boys / Beginner / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

No matches in the rating period · no valid weight evidence

Grappling Industries AUSTRIA
Does not count
Gi Teens / Male / Blue / 16 - 17 years / -115 lbs x
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries AUSTRIA
Does not count
No Gi Teens / Male / Advanced (Blue) / 16 - 17 years / -115 lbs x
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

No matches in the rating period · no valid weight evidence

Grappling RIVALS 5 GI + NO-GI & KIDS
Does not count
Kids - No Gi / 15-18 years / Boy / Beginner (10-18 years) / -60 kg
  • Registered weight class: -60 kg
  • Source competition limit: -60 kg

No matches in the rating period · no valid weight evidence

2025 AGF Prague Open
≤ 57 kg · Counts as a competition event
No Gi Kids Challenger / Boys / Regular Challenger / Middle I (Up to 56.70 kg)
  • Registered weight class: Middle I (Up to 56.70 kg)
  • Source competition limit: Middle I (Up to 56.70 kg)

1 match in the rating period

STEEL CITY BJJ
≤ 56 kg · Counts as a competition event
No Gi Male / Rooster -55,5kg / White
  • Registered weight class: Rooster -55,5kg
  • Source competition limit: Rooster -55,5kg

2 matches in the rating period

TATAMY 16 KIDS (No-GI and GI round robin)
Does not count
Kids / No Gi / 15-18 years / Boys / Intermediate / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

No matches in the rating period · no valid weight evidence

ADCC AUSTRIAN NATIONALS OPEN 2025
≤ 55 kg · Does not count
Boys Juniors 15-17 years / Beginner / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

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

ADCC European, Middle East & African Championship 2025
Does not count
Boys 15-17 years / Beginner / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

Classification evidence

Why White?

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

  • white 2 matches in the rating period Selected outcome

Registrations and outcomes

STEEL CITY BJJ
white · Counts as a match
No Gi Male / Rooster -55,5kg / White
  • Source belt category: white

2 matches in the rating period