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David Happersberger

Martial Arts Sports Center

W–L
8–6
Won and lost rating-eligible matches in the past 12 months.
Gi
1,338
Rating based on Gi matches in the past 12 months.
No-Gi
1,265
Rating based on No-Gi matches in the past 12 months.
Current form
6–4
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
3
Silver
3
Bronze
2
Total medals
8
Events with results
4

Full career record

Wins
12
Losses
7
Matches
19
Win rate
63.2%

Ways of winning

Submission
5
Points
7
Decision
0
Disqualification
0

Personal records

Longest winning streak
4
Longest submission streak
1
Longest gold streak
1
Largest recorded points win
14–0

Recent recorded placements

  1. Dragon cup

    DE Event record 3–2

    • Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
    • Children Gi (8-9 Jahre) / weiß / -40kg / 8-9Jahre / Male

  4. Bulldog BJJ Tournament

    DE Event record 4–0

    • Kids Mixed Gi / White / Pee Wee III (9yrs) / 30,0 kg -34,9 kg
    • Kids Mixed No-Gi / Beginner / -35 kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
7
Distinct events
3

Ways of winning

  • Submission 5 63%
  • Points 3 38%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1338
Record
5–2
Win rate
71%
Submission share
100%

No-Gi

Rating
1265
Record
3–4
Win rate
43%
Submission share
0%

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,376
Change over 90 days
-22
Highest rating in 12 months
1,415
Performance versus expectation
+9.4 pp
Schedule strength
Top 21%
Average opponent rating
1,370
Weighted win rate
58%
Expected win rate
48%
Repeat-opponent share
50%
Effective evidence
9.8
Confidence
89/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 10–7 10–7 across 17 rematches against 8 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #27 Kiril Delos Santos · Dragon cup Pts 6–2
  2. #1305 Bruno Preißl · NAGA Europe Grappling Championship Pts 8–2 Earlier · Sub 03:00 11–0 October 4, 2025 · NAGA Europe Grappling Championship

Full career

  1. #27 Kiril Delos Santos · Dragon cup Pts 6–2
  2. #823 Ella Landmann · Bulldog BJJ Tournament Pts 14–0
  3. #1127 David Schadko · Bulldog BJJ Tournament Pts 9–1 Earlier · Pts 13–3 June 14, 2025 · Bulldog BJJ Tournament
  4. #1305 Bruno Preißl · NAGA Europe Grappling Championship Pts 8–2 Earlier · Sub 03:00 11–0 October 4, 2025 · NAGA Europe Grappling Championship

Rivals

Opponent Head-to-head record Matches
Bruno Preißl 2–0 2
David Schadko 2–0 2

Around this athlete

Athlete Rank Rating
Theo Holz #507 1,376
David Happersberger #508 1,376

Recent tournaments

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 -2 Rating 1,376

Rating-period composition

Rating matches
14 0
Record
8–6 Previous month 8–6
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 No new matches Change +3 Rating 1,378

Rating-period composition

Rating matches
14 0
Record
8–6 Previous month 8–6
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.

June 2026 5 new matches · 4 left period Change -42 Rating 1,375

Rating-period composition

Rating matches
14 +1
Record
8–6 Previous month 9–4
Opponents
7 -1
Events
3 0

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.

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 14, 2026 Matteo Brosch
Dragon cup Children Gi (8-9 Jahre) / weiß / -40kg / 8-9Jahre / Male
Method Submission 01:58 8–0
Marginal influence +10
Win
June 14, 2026 Matteo Brosch
Dragon cup Children Gi (8-9 Jahre) / weiß / -40kg / 8-9Jahre / Male
Method Submission 00:50 9–0
Marginal influence +10
Loss
June 14, 2026 Kiril Delos Santos
Dragon cup Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
Method Points 03:00 0–9
Marginal influence -8
Win
June 14, 2026 Kiril Delos Santos
Dragon cup Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
Method Points 03:00 6–2
Marginal influence +11
Loss
June 14, 2026 Kiril Delos Santos
Dragon cup Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
Method Points 03:00 0–12
Marginal influence -8
May 2026 No new matches Change +2 Rating 1,417

Rating-period composition

Rating matches
13 0
Record
9–4 Previous month 9–4
Opponents
8 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 5 new matches Change +13 Rating 1,415

Rating-period composition

Rating matches
13 +5
Record
9–4 Previous month 6–2
Opponents
8 +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.
Loss
April 18, 2026 Noah Abdul
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / White / 8-9 years / -42 kg
Method Submission 01:42 4–6
Marginal influence -18
Win
April 18, 2026 Sami Ouahmar
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys No-Gi (under 16 y.o.) / White / 8-9 years / -42 kg
Method Points 03:00 13–0
Marginal influence +10
Win
April 18, 2026 Sami Ouahmar
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
Method Submission 00:56 4–0
Marginal influence +11
Win
April 18, 2026 Masri Hamdo
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
Method Submission 00:56 6–2
Marginal influence +14
Loss
April 18, 2026 Noah Abdul
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
Method Points 03:00 6–10
Marginal influence -14
March 2026 No new matches Change +3 Rating 1,402

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
Opponents
5 0
Events
2 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 -7 Rating 1,399

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
Opponents
5 0
Events
2 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 1,406

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
Opponents
5 0
Events
2 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 +2 Rating 1,406

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
Opponents
5 0
Events
2 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 Change +7 Rating 1,404

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
Opponents
5 0
Events
2 0

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

October 2025 4 new matches Change +20 Rating 1,397

Rating-period composition

Rating matches
8 +4
Record
6–2 Previous month 4–0
Opponents
5 +2
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
October 4, 2025 Bruno Preißl
NAGA Europe Grappling Championship Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Points 03:00 8–2
Marginal influence +7
Loss
October 4, 2025 Jean Riabzev
NAGA Europe Grappling Championship Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 02:24 0–9
Marginal influence -9
Win
October 4, 2025 Bruno Preißl
NAGA Europe Grappling Championship Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 03:00 11–0
Marginal influence +12
Loss
October 4, 2025 Jean Riabzev
NAGA Europe Grappling Championship Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
Method Submission 01:01 0–0
Marginal influence -5
September 2025 No new matches Change 0 Rating 1,377

Rating-period composition

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

Relevant matches
9.8
Official ranking percentile
Top 35%
Performance
9.4 pp above expectation

9.8 weighted matches against 7 different opponents across 3 events

Weighted win rate
57.8%
Expected win rate
48.4%
Average opponent rating
1,370
Repeated-opponent share
50.0%
Network connectivity
87.6%

Classification evidence

Why U12?

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

  • U12 2 event votes Selected outcome

Registrations and outcomes

Dragon cup
U12 · Counts
Children Gi (8-9 Jahre) / weiß / -40kg / 8-9Jahre / Male
  • Competition age 10
  • Registered age: u10
  • Source category: u10
Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
  • Competition age 10
  • Registered age: u10
  • Source category: u10
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U12 · Counts
Boys No-Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Competition age 10
  • Registered age: u10
  • Source category: u10
Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Competition age 10
  • Registered age: u10
  • Source category: u10
NAGA Europe Grappling Championship
Does not count
Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Competition age 9
  • Registered age: u10
  • Source category: u10
Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Competition age 9
  • Registered age: u10
  • Source category: u10

Classification evidence

Why ≤ 40 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

  • ≤ 40 kg 2 competition events Selected outcome
  • ≤ 42 kg 1 competition event

Registrations and outcomes

Dragon cup
≤ 40 kg · Counts as a competition event
Children Gi (8-9 Jahre) / weiß / -40kg / 8-9Jahre / Male
  • Registered weight class: -40kg
  • Source competition limit: -40kg

2 matches in the rating period

Dragon cup
≤ 40 kg · Counts as a competition event
Children No-Gi (8-9 Jahre) / Intermediate / -40kg / 8-9 Jahre / Male
  • Registered weight class: -40kg
  • Source competition limit: -40kg

3 matches in the rating period

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 42 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Registered weight class: -42 kg
  • Source competition limit: -42 kg

2 matches in the rating period

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 42 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Registered weight class: -42 kg
  • Source competition limit: -42 kg

3 matches in the rating period

NAGA Europe Grappling Championship
≤ 40 kg · Counts as a competition event
Children Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Registered weight class: 35 - 39.9
  • Source competition limit: 35 - 39.9

2 matches in the rating period

NAGA Europe Grappling Championship
≤ 40 kg · Counts as a competition event
Children No-Gi (Male) / Beginner / 35 - 39.9 / 8-9 years
  • Registered weight class: 35 - 39.9
  • Source competition limit: 35 - 39.9

2 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 5 matches in the rating period Selected outcome

Registrations and outcomes

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Boys No-Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Source belt category: white

2 matches in the rating period

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Boys Gi (under 16 y.o.) / White / 8-9 years / -42 kg
  • Source belt category: white

3 matches in the rating period