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Roman Lantsman

1.BJJC Kurama Offenbach 2021 e.V.

W–L
2–3
Won and lost rating-eligible matches in the past 12 months.
Gi
1,213
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
2–3
Results from the ten most recent rating-eligible matches.
Opponents
5
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
0
Silver
2
Bronze
2
Total medals
4
Events with results
4

Full career record

Wins
4
Losses
8
Matches
12
Win rate
33.3%

Ways of winning

Submission
0
Points
3
Decision
0
Disqualification
1

Personal records

Longest winning streak
2

Recent recorded placements

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
5
Distinct events
3

Ways of winning

  • Submission 0 0%
  • Points 2 100%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1213
Record
2–3
Win rate
40%
Submission share
0%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

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
1,213
Change over 90 days
-27
Highest rating in 12 months
1,287
Performance versus expectation
-3.6 pp
Schedule strength
Top 80%
Average opponent rating
1,275
Weighted win rate
37%
Expected win rate
41%
Repeat-opponent share
0%
Effective evidence
4.3
Confidence
67/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–2 0–2 across 2 rematches against 1 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #1318 Adam Boujnan · FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Pts 3–0
  2. #1451 Julian Kiesel · FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Pts 6–0

Full career

  1. #414 Willi Hoppe · GERMAN NATIONAL KIDS OPEN CHAMPIONSHIP 2025 Pts 3–0
  2. #1318 Adam Boujnan · FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Pts 3–0
  3. #1451 Julian Kiesel · FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Pts 6–0

Rivals

Opponent Head-to-head record Matches
Luca Irimia 0–2 2

Around this athlete

Athlete Rank Rating
Tijani Delsalle #1256 1,214
Roman Lantsman #1257 1,213
Atilla Bozkurt #1258 1,213

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 0 Rating 1,213

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,213

Rating-period composition

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

June 2026 1 new match · 6 left period Change -75 Rating 1,213

Rating-period composition

Rating matches
5 -5
Record
2–3 Previous month 4–6
Opponents
5 -5
Events
3 0

6 older matches left the 12-month period: 2 won and 4 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 Bünyamin Yilmaz
GERMAN NATIONAL OPEN CHAMPIONSHIP 2026 Boys Gi (under 16 y.o.) / White / 12-13 years / -45 kg
Method Submission 01:06 0–6
Marginal influence -24
May 2026 No new matches Change +1 Rating 1,288

Rating-period composition

Rating matches
10 0
Record
4–6 Previous month 4–6
Opponents
10 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 3 new matches Change +45 Rating 1,287

Rating-period composition

Rating matches
10 +3
Record
4–6 Previous month 2–5
Opponents
10 +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.
Win
April 18, 2026 Julian Kiesel
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
Method Points 04:00 6–0
Marginal influence +29
Win
April 18, 2026 Adam Boujnan
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
Method Points 04:00 3–0
Marginal influence +39
Loss
April 18, 2026 Luca Irimia
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
Method Submission 01:28 0–7
Marginal influence -23
March 2026 No new matches Change +2 Rating 1,242

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
Opponents
7 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 1 new match Change -11 Rating 1,240

Rating-period composition

Rating matches
7 +1
Record
2–5 Previous month 2–4
Opponents
7 +1
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
February 7, 2026 Leon Kaiser
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP Boys Gi (under 16 y.o.) / Grey / 12-13 years / -41 kg
Method Points 03:00 0–4
Marginal influence -43
January 2026 No new matches Change +2 Rating 1,251

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
6 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.

December 2025 No new matches Change 0 Rating 1,249

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
6 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.

November 2025 No new matches Change +1 Rating 1,249

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
6 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.

October 2025 No new matches Change -2 Rating 1,248

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
6 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.

September 2025 No new matches Change +3 Rating 1,250

Rating-period composition

Rating matches
6 0
Record
2–4 Previous month 2–4
Opponents
6 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
4.3
Official ranking percentile
Top 85%
Performance
3.6 pp below expectation

4.3 weighted matches against 5 different opponents across 3 events

Weighted win rate
36.9%
Expected win rate
40.5%
Average opponent rating
1,275
Repeated-opponent share
0.0%
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 3 event votes Selected outcome

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
U14 · Counts
Boys Gi (under 16 y.o.) / White / 12-13 years / -45 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U14 · Counts
Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U14 · Counts
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -41 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 41 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

  • ≤ 41 kg 2 competition events Selected outcome
  • ≤ 45 kg 1 competition event

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
≤ 45 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / White / 12-13 years / -45 kg
  • Registered weight class: -45 kg
  • Source competition limit: -45 kg

1 match in the rating period

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 41 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
  • Registered weight class: -41 kg
  • Source competition limit: -41 kg

3 matches in the rating period

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
≤ 41 kg · Counts as a competition event
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -41 kg
  • Registered weight class: -41 kg
  • Source competition limit: -41 kg

1 match 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 4 matches in the rating period Selected outcome
  • grey 1 match in the rating period

Registrations and outcomes

GERMAN NATIONAL OPEN CHAMPIONSHIP 2026
white · Counts as a match
Boys Gi (under 16 y.o.) / White / 12-13 years / -45 kg
  • Source belt category: white

1 match in the rating period

FRANKFURT SPRING OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
white · Counts as a match
Boys Gi (under 16 y.o.) / White / 12-13 years / -41 kg
  • Source belt category: white

3 matches in the rating period

COLOGNE WINTER OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
grey · Counts as a match
Boys Gi (under 16 y.o.) / Grey / 12-13 years / -41 kg
  • Source belt category: grey

1 match in the rating period