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David Perez Martinez

Team Ibrahim (Ummah Fight Club)

W–L
6–12
Won and lost rating-eligible matches in the past 12 months.
Gi
1,195
Rating based on Gi matches in the past 12 months.
No-Gi
1,316
Rating based on No-Gi matches in the past 12 months.
Current form
3–7
Results from the ten most recent rating-eligible matches.
Opponents
12
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

3
Events
Date Event Result Format Division
Grappling Industries HAMBURG Germany · Gi · 6–7 yo · white · ≤55 lb ; No-Gi · 6–7 yo · white · ≤55 lb 4–6 W–L: Win / Loss GiNo-Gi
  • No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
  • Place #4
2026 AGF Hamburg Summer Open Germany · Gi · 6–7 yo · white · ≤29.5 kg ; No-Gi · 6–7 yo · white · ≤29.5 kg 0–4 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Place #4
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Germany · Gi · U16 · white · ≤24 kg ; No-Gi · U16 · white · ≤24 kg 3–2 W–L: Win / Loss GiNo-Gi
  • Place #4
  • Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 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 9 new matches Change +35 Rating 1,320

Rating-period composition

Rating matches
18 +9
Record
6–12 Previous month 3–6
Opponents
12 +4
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.
Loss
August 15, 2026 Ayub Musajev
Grappling Industries HAMBURG Gi Kids / 6 - 7 years / White / -55 lbs
Method Points 03:00 2–8
Marginal influence -5
Loss
August 15, 2026 Ayub Musajev
Grappling Industries HAMBURG No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
Method Submission 02:33 0–9
Marginal influence -2
Loss
August 15, 2026 Yusuf Söyleyen
Grappling Industries HAMBURG Gi Kids / 6 - 7 years / White / -55 lbs
Method Points 03:00 0–9
Marginal influence -11
Loss
Grappling Industries HAMBURG Gi Kids / 6 - 7 years / White / -55 lbs
Method Submission 02:07 0–3
Marginal influence -9
Win
August 15, 2026 Aliya Miray Narttek
Grappling Industries HAMBURG Gi Kids / 6 - 7 years / White / -55 lbs
Method Decision 00:28 2–0
Marginal influence +11
Loss
August 15, 2026 Ayub Musajev
Grappling Industries HAMBURG Gi Kids / 6 - 7 years / White / -55 lbs
Method Points 03:00 3–11
Marginal influence -5
Loss
August 15, 2026 Ayub Musajev
Grappling Industries HAMBURG No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
Method Points 03:00 0–8
Marginal influence -2
Win
August 15, 2026 Yusuf Söyleyen
Grappling Industries HAMBURG No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
Method Submission 02:14 0–0
Marginal influence +17
Win
August 15, 2026 Musa Faqiry
Grappling Industries HAMBURG No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
Method Submission 00:39 6–0
Marginal influence +13
July 2026 4 new matches Change -39 Rating 1,285

Rating-period composition

Rating matches
9 +4
Record
3–6 Previous month 3–2
Opponents
8 +4
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.
Loss
July 4, 2026 Louis Matuszewski
2026 AGF Hamburg Summer Open Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
Method Points 02:00 7–8
Marginal influence -16
Loss
July 4, 2026 Ilya Rowekamp
2026 AGF Hamburg Summer Open Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
Method Submission 00:59 0–10
Marginal influence -9
Loss
July 4, 2026 Ubeyda Öztürk
2026 AGF Hamburg Summer Open No Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
Method Points 03:00 2–14
Marginal influence -9
Loss
July 4, 2026 Ziyad Asisi
2026 AGF Hamburg Summer Open No Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
Method Points 03:00 3–9
Marginal influence -11
June 2026 No new matches Change +3 Rating 1,324

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
4 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 No new matches Change 0 Rating 1,321

Rating-period composition

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

April 2026 5 new matches Change Starting point Rating 1,321

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
April 11, 2026 Jibril El-Mosleh
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
Method Disqualification 00:05 0–0
Marginal influence +19
Win
April 11, 2026 Noah Abbas Ali
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
Method Points 02:00 8–0
Marginal influence +15
Loss
April 11, 2026 Ayub Musajev
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
Method Submission 01:45 4–0
Marginal influence -6
Win
April 11, 2026 Aaron Kempka
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
Method Points 02:00 6–2
Marginal influence +13
Loss
April 11, 2026 Jibril El-Mosleh
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
Method Submission 00:44 2–2
Marginal influence -10
Relevant matches
12.2
Official ranking percentile
Top 54%
Performance
0.9 pp below expectation

12.2 weighted matches against 12 different opponents across 3 events

Weighted win rate
37.3%
Expected win rate
38.2%
Average opponent rating
1,364
Repeated-opponent share
33.3%
Network connectivity
87.6%

Classification evidence

Why U8?

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

  • U8 4 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U8 · Counts
No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids / 6 - 7 years / White / -55 lbs
  • Competition age 6
  • Registered age: u8
  • Source category: u8
2026 AGF Hamburg Summer Open
U8 · Counts
No Gi Kids Challenger / Boys / White Challenger / Rooster III (Up to 24.94 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids Challenger / Boys / White Challenger / Rooster III (Up to 24.94 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Competition T-shirt / Youth Small
No Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Competition age 6
  • Registered age: u8
  • Source category: u8
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U8 · Counts
Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
U8 · Counts
Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8
Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Competition age 6
  • Registered age: u8
  • Source category: u8

Classification evidence

Why ≤ 24 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

  • ≤ 24 kg 1 competition event Selected outcome
  • ≤ 25 kg 1 competition event
  • ≤ 30 kg 1 competition event

Registrations and outcomes

Grappling Industries HAMBURG
≤ 25 kg · Counts as a competition event
No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

4 matches in the rating period

Grappling Industries HAMBURG
≤ 25 kg · Counts as a competition event
Gi Kids / 6 - 7 years / White / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

5 matches in the rating period

2026 AGF Hamburg Summer Open
Does not count
No Gi Kids Challenger / Boys / White Challenger / Rooster III (Up to 24.94 kg)
  • Registered weight class: Rooster III (Up to 24.94 kg)
  • Source competition limit: Rooster III (Up to 24.94 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
Does not count
Gi Kids Challenger / Boys / White Challenger / Rooster III (Up to 24.94 kg)
  • Registered weight class: Rooster III (Up to 24.94 kg)
  • Source competition limit: Rooster III (Up to 24.94 kg)

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
Does not count
Competition T-shirt / Youth Small

No matches in the rating period · no valid weight evidence

2026 AGF Hamburg Summer Open
≤ 30 kg · Counts as a competition event
No Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Registered weight class: Feather I (Up to 29.50 kg)
  • Source competition limit: Feather I (Up to 29.50 kg)

2 matches in the rating period

2026 AGF Hamburg Summer Open
≤ 30 kg · Counts as a competition event
Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Registered weight class: Feather I (Up to 29.50 kg)
  • Source competition limit: Feather I (Up to 29.50 kg)

2 matches in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

No matches in the rating period · no valid weight evidence

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

No matches in the rating period · no valid weight evidence

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 24 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

2 matches in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 24 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Registered weight class: -24 kg
  • Source competition limit: -24 kg

3 matches in the rating period

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 18 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
white · Counts as a match
Gi Kids / 6 - 7 years / White / -55 lbs
  • Source belt category: white

5 matches in the rating period

Grappling Industries HAMBURG
white · Counts as a match
No Gi Kids / 6 - 7 years / Beginner (White) / -55 lbs
  • Source belt category: white

4 matches in the rating period

2026 AGF Hamburg Summer Open
white · Counts as a match
No Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Source belt category: white

2 matches in the rating period

2026 AGF Hamburg Summer Open
white · Counts as a match
Gi Kids / Boys / Little Kids (6 - 7 yrs) / White / Feather I (Up to 29.50 kg)
  • Source belt category: white

2 matches in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
white · Counts as a match
Boys No-Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Source belt category: white

2 matches in the rating period

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
white · Counts as a match
Boys Gi (under 16 y.o.) / White / 4-5 years / -24 kg
  • Source belt category: white

3 matches in the rating period