TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
TR

Mert Toptas

ROOTS MMA

W–L
10–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,382
Rating based on Gi matches in the past 12 months.
No-Gi
1,291
Rating based on No-Gi matches in the past 12 months.
Current form
8–2
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

  1. 2026 AGF Amsterdam Open

    the Netherlands

    No Gi Kids / Boys / Teen (14 - 15 yrs) / White / Heavy II (Up to 999.00 kg)
    Unconfirmed

  3. 2026 AGF Dusseldorf Open

    Germany

    No Gi Kids / Boys / Teen (14 - 15 yrs) / White / Heavy II (Up to 999.00 kg) No Gi Kids Challenger / Boys / White Challenger / Heavy II (Up to 999.00 kg) Gi Kids / Boys / Teen (14 - 15 yrs) / White / Heavy II (Up to 999.00 kg)
    Unconfirmed

Tournament history

Events

3
Events
Date Event Result Format Division
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Germany · Gi · U16 · Open weight ; Gi · U16 · white · ≤84 kg ; No-Gi · U16 · white · ≤84 kg 6–1 W–L: Win / Loss GiNo-Gi
  • Boys Absolute / Gi Division (under 16 y.o.)
  • Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Germany · Gi · white · ≤85 kg 2–1 W–L: Win / Loss Gi
  • Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
RISING BJJ DÜSSELDORF 16.05.26 Germany · Gi · white · ≤82 kg 2–0 W–L: Win / Loss GiNo-Gi
  • Gold
  • Youth // Male Gi / White / Youth Male / 82 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 1,415

Rating-period composition

Rating matches
12 0
Record
10–2 Previous month 10–2
Opponents
7 0
Events
3 0

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

July 2026 7 new matches Change +98 Rating 1,414

Rating-period composition

Rating matches
12 +7
Record
10–2 Previous month 4–1
Opponents
7 +3
Events
3 +1

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
July 4, 2026 Neven Durnić
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Absolute / Gi Division (under 16 y.o.)
Method Points 04:00 15–10
Marginal influence +10
Loss
July 4, 2026 Nykyta Tymofeiev
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Absolute / Gi Division (under 16 y.o.)
Method Submission 02:28 0–6
Marginal influence -13
Win
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Absolute / Gi Division (under 16 y.o.)
Method Points 04:00 2–0
Marginal influence +8
Win
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
Method Submission 03:18 14–0
Marginal influence +4
Win
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
Method Submission 03:18 9–0
Marginal influence +4
Win
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
Method Points 04:00 7–0
Marginal influence +8
Win
COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
Method Points 04:00 3–0
Marginal influence +8
June 2026 3 new matches Change +52 Rating 1,316

Rating-period composition

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

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
June 13, 2026 Serdar Çukadar
DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
Method Submission 01:12 4–0
Marginal influence +12
Loss
June 13, 2026 Ben Reinisch
DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
Method Points 05:00 2–12
Marginal influence -32
Win
June 13, 2026 Amir Mazaev
DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
Method Decision 05:00 4–4
Marginal influence +16
May 2026 2 new matches Change Starting point Rating 1,264

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
May 16, 2026 Colince Rosenboom
RISING BJJ DÜSSELDORF 16.05.26 Youth // Male Gi / White / Youth Male / 82 kg
Method Points 04:00 0–0
Marginal influence +12
Win
May 16, 2026 Colince Rosenboom
RISING BJJ DÜSSELDORF 16.05.26 Youth // Male Gi / White / Youth Male / 82 kg
Method Points 04:00 12–0
Marginal influence +12
Relevant matches
7.2
Official ranking percentile
Top 23%
Performance
25.0 pp above expectation

7.2 weighted matches against 7 different opponents across 3 events

Weighted win rate
80.0%
Expected win rate
55.1%
Average opponent rating
1,289
Repeated-opponent share
41.7%
Network connectivity
87.6%

Classification evidence

Why U16?

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

  • U16 4 event votes Selected outcome

Registrations and outcomes

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U16 · Counts
Boys Absolute / Gi Division (under 16 y.o.)
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U16 · Counts
Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
  • Competition age 15
  • Registered age: u18
  • Source category: u18
Male No-Gi (over 16 y.o.) / White / Youth No-Gi / -85,00 kg
  • Competition age 15
RISING BJJ DÜSSELDORF 16.05.26
U16 · Counts
Youth // Male Gi / White / Youth Male / 82 kg
  • Competition age 15
  • Registered age: u18
  • Source category: u18
Youth // Male No Gi / White / Youth Male / 82 kg
  • Competition age 15
LET´S ROLL HENNEF I EBI SUB-ONLY
U16 · Counts
Teens Boys No-Gi / Intermediate / 14-15 years / -83 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16

Classification evidence

Why ≤ 82 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

  • ≤ 82 kg 1 competition event Selected outcome
  • ≤ 84 kg 1 competition event
  • ≤ 85 kg 1 competition event

Registrations and outcomes

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys Absolute / Gi Division (under 16 y.o.)
  • Registered weight class: Boys Absolute
  • Source competition limit: Boys Absolute

3 matches in the rating period · weight class could not be normalized reliably

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 84 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Registered weight class: -84 kg
  • Source competition limit: -84 kg

2 matches in the rating period

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 84 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Registered weight class: -84 kg
  • Source competition limit: -84 kg

2 matches in the rating period

DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 85 kg · Counts as a competition event
Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
  • Registered weight class: -85,00 kg
  • Source competition limit: -85,00 kg

3 matches in the rating period

DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Male No-Gi (over 16 y.o.) / White / Youth No-Gi / -85,00 kg
  • Registered weight class: -85,00 kg
  • Source competition limit: -85,00 kg

No matches in the rating period · no valid weight evidence

RISING BJJ DÜSSELDORF 16.05.26
≤ 82 kg · Counts as a competition event
Youth // Male Gi / White / Youth Male / 82 kg
  • Registered weight class: 82 kg
  • Source competition limit: 82 kg

2 matches in the rating period

RISING BJJ DÜSSELDORF 16.05.26
Does not count
Youth // Male No Gi / White / Youth Male / 82 kg
  • Registered weight class: 82 kg
  • Source competition limit: 82 kg

No matches in the rating period · no valid weight evidence

LET´S ROLL HENNEF I EBI SUB-ONLY
Does not count
Teens Boys No-Gi / Intermediate / 14-15 years / -83 kg
  • Registered weight class: -83 kg
  • Source competition limit: -83 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 9 matches in the rating period Selected outcome

Registrations and outcomes

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Boys No-Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Source belt category: white

2 matches in the rating period

COLOGNE SUMMER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Boys Gi (under 16 y.o.) / White / 14-15 years / -84 kg
  • Source belt category: white

2 matches in the rating period

DÜSSELDORF OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Male Gi (over 16 y.o.) / White / Youth (16-17y.o.) / -85,00 kg
  • Source belt category: white

3 matches in the rating period

RISING BJJ DÜSSELDORF 16.05.26
white · Counts as a match
Youth // Male Gi / White / Youth Male / 82 kg
  • Source belt category: white

2 matches in the rating period