Jonas Christoph Wczassek - Rating

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 1,359

Rating-period composition

Rating matches: 10 0
Record: 5–5 Previous month 5–5
Opponents: 7 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 -1 Rating 1,358

Rating-period composition

Rating matches: 10 0
Record: 5–5 Previous month 5–5
Opponents: 7 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 2 new matches · 3 left period Change +37 Rating 1,359

Rating-period composition

Rating matches: 10 -1
Record: 5–5 Previous month 5–6
Opponents: 7 -1
Events: 4 0

3 older matches left the 12-month period: 0 won and 3 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 27, 2026 Nathan Ambach

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg

Method Submission 02:39 0–14

Marginal influence -7

Loss

June 27, 2026 Nathan Ambach

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Boys Gi (under 16 y.o.) / Yellow / 10-11 years / -34 kg

Method Submission 02:11 2–4

Marginal influence -7

May 2026 2 new matches · 6 left period Change +64 Rating 1,322

Rating-period composition

Rating matches: 11 -4
Record: 5–6 Previous month 4–11
Opponents: 8 -3
Events: 4 -1

6 older matches left the 12-month period: 0 won and 6 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

May 23, 2026 Antonio Brigden

NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years

Method Points 03:00 0–6

Marginal influence -27

Win

May 23, 2026 Hakim Dastageeri

NAGA Germany Grappling Championship Children Gi (Male) / Intermediate / 30 - 34.9 / 8-9 years

Method Points 03:00 12–6

Marginal influence +27

April 2026 No new matches Change +4 Rating 1,258

Rating-period composition

Rating matches: 15 0
Record: 4–11 Previous month 4–11
Opponents: 11 0
Events: 5 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 · 3 left period Change 0 Rating 1,254

Rating-period composition

Rating matches: 15 -3
Record: 4–11 Previous month 5–13
Opponents: 11 -1
Events: 5 -1

3 older matches left the 12-month period: 1 won and 2 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 · 2 left period Change -54 Rating 1,254

Rating-period composition

Rating matches: 18 -2
Record: 5–13 Previous month 7–13
Opponents: 12 -2
Events: 6 -1

2 older matches left the 12-month period: 2 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 No new matches Change -1 Rating 1,308

Rating-period composition

Rating matches: 20 0
Record: 7–13 Previous month 7–13
Opponents: 14 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 -2 Rating 1,309

Rating-period composition

Rating matches: 20 0
Record: 7–13 Previous month 7–13
Opponents: 14 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 · 2 left period Change -50 Rating 1,311

Rating-period composition

Rating matches: 20 -2
Record: 7–13 Previous month 9–13
Opponents: 14 -1
Events: 7 -1

2 older matches left the 12-month period: 2 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 6 new matches · 1 left period Change +101 Rating 1,361

Rating-period composition

Rating matches: 22 +5
Record: 9–13 Previous month 5–12
Opponents: 15 +3
Events: 8 +1

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.

Win

October 26, 2025 Valentina Nieto Roqueiro

Southside Battle Trials 2025 - Kinder und Jugendliche U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg

Method Points 03:00 21–0

Marginal influence +26

Win

October 26, 2025 Hakim Dastageeri

Southside Battle Trials 2025 - Kinder und Jugendliche U10 - male / female - Gi / U10 - Alter 7 Jahre bis 9 Jahre / -31 kg

Method Points 03:00 2–0

Marginal influence +24

Loss

October 18, 2025 Nathan Ambach

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg

Method Submission 02:17 0–5

Marginal influence -5

Win

October 18, 2025 Antonio Argentina

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg

Method Decision 03:00 6–2

Marginal influence +20

Win

October 18, 2025 Hicham Aksoy

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg

Method Submission 00:27 0–0

Marginal influence +14

Loss

October 18, 2025 David Lazic

FRANKFURT FALL OPEN 2025 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 8-9 years / -30 kg

Method Submission 02:43 0–0

Marginal influence -24

September 2025 No new matches Change 0 Rating 1,260

Rating-period composition

Rating matches: 17 0
Record: 5–12 Previous month 5–12
Opponents: 12 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.

Relevant matches: 6.4

Official ranking percentile: Top 40%

Performance: 6.8 pp above expectation

6.4 weighted matches against 7 different opponents across 4 events

Weighted win rate: 55.2%
Expected win rate: 48.4%
Average opponent rating: 1,425
Repeated-opponent share: 30.0%
Network connectivity: 80.9%