Konrad Groß - Rating | TopBJJ Index

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 1,405

Rating-period composition

Rating matches: 25 0
Record: 16–9 Previous month 16–9
Opponents: 20 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.

July 2026 No new matches Change 0 Rating 1,405

Rating-period composition

Rating matches: 25 0
Record: 16–9 Previous month 16–9
Opponents: 20 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.

June 2026 4 new matches · 6 left period Change +56 Rating 1,405

Rating-period composition

Rating matches: 25 -2
Record: 16–9 Previous month 13–14
Opponents: 20 -4
Events: 5 -1

6 older matches left the 12-month period: 1 won and 5 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 27, 2026 Emin-Halim Aldirmaz

Styrian Open Championship 2026 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Boys No-Gi / White / Grey / U16 (14-15yrs) / -77,00 kg

Method Submission 01:25 0–0

Marginal influence +4

Win

June 27, 2026 Emin-Halim Aldirmaz

Styrian Open Championship 2026 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Boys No-Gi / White / Grey / U16 (14-15yrs) / -77,00 kg

Method Points 03:00 6–0

Marginal influence +4

Win

June 27, 2026 Lukas Steindl

Styrian Open Championship 2026 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Boys Gi / White / Grey / U16 (14- 15yrs) / -69 kg

Method Submission 02:24 10–2

Marginal influence +6

Win

June 27, 2026 Lukas Steindl

Styrian Open Championship 2026 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Boys Gi / White / Grey / U16 (14- 15yrs) / -69 kg

Method Submission 01:13 0–0

Marginal influence +6

May 2026 2 new matches · 2 left period Change -11 Rating 1,349

Rating-period composition

Rating matches: 27 0
Record: 13–14 Previous month 14–13
Opponents: 24 +1
Events: 6 0

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.

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 24, 2026 Mikail Köken

2Brave - Grappling Series 3 Kids 12-15 years / 12-15 years / -75 kg

Method Points 03:00 0–3

Marginal influence -10

Win

May 24, 2026 Merthan Aydin

2Brave - Grappling Series 3 Kids 12-15 years / 12-15 years / -75 kg

Method Submission 00:53 0–0

Marginal influence +13

April 2026 No new matches Change +1 Rating 1,360

Rating-period composition

Rating matches: 27 0
Record: 14–13 Previous month 14–13
Opponents: 23 0
Events: 6 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 Change +1 Rating 1,359

Rating-period composition

Rating matches: 27 0
Record: 14–13 Previous month 14–13
Opponents: 23 0
Events: 6 0

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

February 2026 5 new matches Change +18 Rating 1,358

Rating-period composition

Rating matches: 27 +5
Record: 14–13 Previous month 10–12
Opponents: 23 +3
Events: 6 +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

February 21, 2026 Petr Němec

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 01:04 0–0

Marginal influence +11

Win

February 21, 2026 Richard Vlček

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:17 0–0

Marginal influence +4

Win

February 21, 2026 Damian Trnka

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:58 7–0

Marginal influence +6

Loss

February 21, 2026 Lukas Čupak

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Points 04:00 4–7

Marginal influence -10

Win

February 21, 2026 Teodor Stankovic

TATAMY 19: Czech Open Championship (kids) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:53 0–0

Marginal influence +9

January 2026 No new matches Change 0 Rating 1,340

Rating-period composition

Rating matches: 22 0
Record: 10–12 Previous month 10–12
Opponents: 20 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.

December 2025 5 new matches Change -3 Rating 1,340

Rating-period composition

Rating matches: 22 +5
Record: 10–12 Previous month 8–9
Opponents: 20 +5
Events: 5 +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 6, 2025 Richard Vlček

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 01:40 0–0

Marginal influence +4

Win

December 6, 2025 Damian Trnka

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Submission 00:31 0–0

Marginal influence +6

Loss

December 6, 2025 Valeriy Dzharty

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / +65 kg

Method Points 04:00 0–2

Marginal influence -13

Loss

December 6, 2025 Norbert Vnučko

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / +65 kg

Method Points 04:00 0–10

Marginal influence -11

Loss

December 6, 2025 Levko Opath

TATAMY 18 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Intermediate / +65 kg

Method Submission 00:36 0–0

Marginal influence -14

November 2025 No new matches Change +4 Rating 1,343

Rating-period composition

Rating matches: 17 0
Record: 8–9 Previous month 8–9
Opponents: 15 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.

October 2025 No new matches Change +6 Rating 1,339

Rating-period composition

Rating matches: 17 0
Record: 8–9 Previous month 8–9
Opponents: 15 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.

September 2025 9 new matches Change +67 Rating 1,333

Rating-period composition

Rating matches: 17 +9
Record: 8–9 Previous month 3–5
Opponents: 15 +8
Events: 4 +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

September 20, 2025 Vojtěch Sedlák

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Submission 02:33 0–0

Marginal influence +5

Loss

September 20, 2025 Kristian Stránsky

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Points 04:00 0–3

Marginal influence -6

Win

September 20, 2025 Andrei Janás

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Submission 03:10 0–0

Marginal influence +5

Win

September 20, 2025 Jan Běhounek

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Submission 03:22 2–2

Marginal influence +5

Loss

September 20, 2025 Kristian Stránsky

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Submission 01:35 0–0

Marginal influence -6

Loss

September 20, 2025 Josef Hanzlíček

TATAMY 16 KIDS (No-GI and GI round robin) Kids / No Gi / 13-14 years / Boys / Beginner / -65 kg

Method Points 04:00 0–4

Marginal influence -9

Win

September 20, 2025 Jiří Priesol

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -65 kg

Method Submission 02:02 0–0

Marginal influence +9

Win

September 20, 2025 David Okenica

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -65 kg

Method Decision 04:00 0–0

Marginal influence +8

Loss

September 20, 2025 Michal Pařil

TATAMY 16 KIDS (No-GI and GI round robin) Kids / Gi / 13-14 years / Boys / White/grey belt / -65 kg

Method Submission 03:46 0–0

Marginal influence -9

Relevant matches: 16.3

Official ranking percentile: Top 26%

Performance: 0.5 pp below expectation

16.3 weighted matches against 20 different opponents across 5 events

Weighted win rate: 60.9%
Expected win rate: 61.4%
Average opponent rating: 1,265
Repeated-opponent share: 20.0%
Network connectivity: 80.9%