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Jonas Leonard Peter

GFTeam Academia Braunschweig

W–L
3–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,299
Rating based on Gi matches in the past 12 months.
No-Gi
-
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
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

7
Events
Date Event Result Format Division
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Germany · Gi · U16 · grey · ≤62 kg 1–1 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Germany · Gi · U16 · grey · ≤62 kg 1–0 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Fennec BJJ Kids Cup Gi & NoGi Germany · Gi · U16 · grey · ≤62 kg 1–2 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Fennec BJJ KIDS CUP Vol. 7 Gi and NoGi Germany · Gi · U16 · grey · ≤46 kg 2–1 W–L: Win / Loss Gi
  • Boys Gi (under 16 y.o.) / Grey / 10-11 years / -46 kg
Fennec BJJ Kids Cup Vol. 6 Germany · Gi · 10 yo · white/grey · ≤42 kg 0–1 W–L: Win / Loss Gi
  • Boys Gi / Junior I (9/10yrs) / White/Grey / -42.00 kg
NAGA Europe Grappling Championship Germany · Gi · 10–11 yo · 40–44.9 kg 1–0 W–L: Win / Loss Gi
  • Children Gi (Male) / Beginner / 40 - 44.9 / 10-11 years
NAGA Germany Grappling Championship Germany · Gi · 10–11 yo · 45–49.9 kg 1–0 W–L: Win / Loss Gi
  • Children Gi (Male) / Novice / 45 - 49.9 / 10-11 years

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 0 Rating 1,299

Rating-period composition

Rating matches
5 0
Record
3–2 Previous month 3–2
Opponents
3 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 No new matches Change 0 Rating 1,299

Rating-period composition

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

June 2026 No new matches Change 0 Rating 1,299

Rating-period composition

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

May 2026 No new matches Change 0 Rating 1,299

Rating-period composition

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

April 2026 1 new match Change +49 Rating 1,299

Rating-period composition

Rating matches
5 +1
Record
3–2 Previous month 2–2
Opponents
3 +1
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
April 11, 2026 Elias Schülke
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Submission 02:48 0–0
Marginal influence +31
March 2026 No new matches · 3 left period Change -77 Rating 1,250

Rating-period composition

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

3 older matches left the 12-month period: 2 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

February 2026 No new matches Change +2 Rating 1,327

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
4 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.

January 2026 No new matches Change -1 Rating 1,325

Rating-period composition

Rating matches
7 0
Record
4–3 Previous month 4–3
Opponents
4 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.

December 2025 1 new match Change +50 Rating 1,326

Rating-period composition

Rating matches
7 +1
Record
4–3 Previous month 3–3
Opponents
4 +1
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
December 20, 2025 Mikail Eski
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Submission 00:27 2–0
Marginal influence +38
November 2025 3 new matches · 1 left period Change +49 Rating 1,276

Rating-period composition

Rating matches
6 +2
Record
3–3 Previous month 2–2
Opponents
3 -1
Events
2 0

1 older matches left the 12-month period: 0 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
November 22, 2025 Arthur Merker
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Submission 01:33 0–7
Marginal influence -25
Loss
November 22, 2025 Arthur Merker
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Points 03:00 0–2
Marginal influence -25
Win
November 22, 2025 Arthur Merker
Fennec BJJ Kids Cup Gi & NoGi Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Submission 00:31 0–0
Marginal influence +22
October 2025 No new matches · 1 left period Change -48 Rating 1,227

Rating-period composition

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

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.

September 2025 No new matches Change +6 Rating 1,275

Rating-period composition

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

Relevant matches
3.3
Official ranking percentile
-
Performance
-

3.3 weighted matches against 3 different opponents across 3 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,224
Repeated-opponent share
40.0%
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 1 event vote Selected outcome

Registrations and outcomes

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
U14 · Counts
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Competition age 12
  • Registered age: u12
  • Source category: u12
HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12
Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Competition age 11
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 62 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

  • ≤ 62 kg 3 competition events Selected outcome

Registrations and outcomes

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 62 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Registered weight class: -62 kg
  • Source competition limit: -62 kg

1 match in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
≤ 62 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Registered weight class: -62 kg
  • Source competition limit: -62 kg

1 match in the rating period

Fennec BJJ Kids Cup Gi & NoGi
≤ 62 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Registered weight class: -62 kg
  • Source competition limit: -62 kg

3 matches in the rating period

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 5 matches in the rating period Selected outcome

Registrations and outcomes

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Source belt category: grey

1 match in the rating period

HANNOVER WINTER OPEN 2025 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Source belt category: grey

1 match in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Source belt category: grey

3 matches in the rating period