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David Sladko

Flowing Arts Austria

W–L
0–7
Won and lost rating-eligible matches in the past 12 months.
Gi
1,065
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
0–7
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
0
Total medals
2
Events with results
3

Full career record

Wins
1
Losses
7
Matches
8
Win rate
12.5%

Ways of winning

Submission
0
Points
0
Decision
0
Disqualification
0

Personal records

Longest winning streak
1

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
  • Points 0
  • Decision 0
  • Other recorded result 0

Gi versus No-Gi

Gi

Rating
1065
Record
0–7
Win rate
0%
Submission share
-

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
1,065
Change over 90 days
-61
Highest rating in 12 months
1,124
Performance versus expectation
-28.9 pp
Schedule strength
Top 29%
Average opponent rating
1,349
Weighted win rate
0%
Expected win rate
29%
Repeat-opponent share
29%
Effective evidence
4.7
Confidence
65/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 0–4 0–4 across 4 rematches against 2 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Amin Selmani 0–2 2
Musa Dogan 0–2 2

Around this athlete

Athlete Rank Rating
Abdullah Hengeveld #3034 1,065
David Sladko #3035 1,065
Alexandr Gorskyi #3036 1,065

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 1,065

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
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 1,065

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
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 No new matches Change +2 Rating 1,065

Rating-period composition

Rating matches
7 0
Record
0–7 Previous month 0–7
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.

May 2026 2 new matches Change -19 Rating 1,063

Rating-period composition

Rating matches
7 +2
Record
0–7 Previous month 0–5
Opponents
5 +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.
Loss
May 30, 2026 Amin Selmani
MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi Kids Men Gi / U16 (14-15) years / white Belt / -55kg
Method Submission 03:13 9–13
Marginal influence -14
Loss
May 30, 2026 Amin Selmani
MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi Kids Men Gi / U16 (14-15) years / white Belt / -55kg
Method Points 04:00 2–18
Marginal influence -14
April 2026 No new matches Change 0 Rating 1,082

Rating-period composition

Rating matches
5 0
Record
0–5 Previous month 0–5
Opponents
4 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.

March 2026 3 new matches Change -33 Rating 1,082

Rating-period composition

Rating matches
5 +3
Record
0–5 Previous month 0–2
Opponents
4 +3
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
March 21, 2026 Hammam Almousa
MOMENTUM 12 - Vienna Open BJJ Gi & No Gi Kids Men Gi / U16 (14-15) years / white Belt / -60kg
Method Submission 00:33 0–2
Marginal influence -8
Loss
March 21, 2026 Luka Jovic
MOMENTUM 12 - Vienna Open BJJ Gi & No Gi Kids Men Gi / U16 (14-15) years / white Belt / -60kg
Method Submission 00:43 2–0
Marginal influence -20
Loss
March 21, 2026 Timur Kovalov
MOMENTUM 12 - Vienna Open BJJ Gi & No Gi Kids Men Gi / U16 (14-15) years / white Belt / -60kg
Method Submission 02:02 0–2
Marginal influence -15
February 2026 No new matches Change -9 Rating 1,115

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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.

January 2026 No new matches Change 0 Rating 1,124

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 1,124

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 2 new matches Change Starting point Rating 1,124

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 29, 2025 Musa Dogan
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi Kids Men Gi / U14 (12-13) years / white Belt / -46kg
Method Submission 02:10 0–0
Marginal influence -17
Loss
November 29, 2025 Musa Dogan
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi Kids Men Gi / U14 (12-13) years / white Belt / -46kg
Method Submission 01:30 3–2
Marginal influence -17
Relevant matches
4.7
Official ranking percentile
Top 100%
Performance
28.9 pp below expectation

4.7 weighted matches against 5 different opponents across 3 events

Weighted win rate
0.0%
Expected win rate
28.9%
Average opponent rating
1,349
Repeated-opponent share
28.6%
Network connectivity
80.9%

Classification evidence

Why U16?

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

  • U16 2 event votes Selected outcome

Registrations and outcomes

MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
U16 · Counts
Kids Men Gi / U16 (14-15) years / white Belt / -55kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
MOMENTUM 12 - Vienna Open BJJ Gi & No Gi
U16 · Counts
Kids Men Gi / U16 (14-15) years / white Belt / -60kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi
Does not count
Kids Men Gi / U14 (12-13) years / white Belt / -46kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 46 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

  • ≤ 46 kg 1 competition event Selected outcome
  • ≤ 55 kg 1 competition event
  • ≤ 60 kg 1 competition event

Registrations and outcomes

MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
≤ 55 kg · Counts as a competition event
Kids Men Gi / U16 (14-15) years / white Belt / -55kg
  • Registered weight class: -55kg
  • Source competition limit: -55kg

2 matches in the rating period

MOMENTUM 12 - Vienna Open BJJ Gi & No Gi
≤ 60 kg · Counts as a competition event
Kids Men Gi / U16 (14-15) years / white Belt / -60kg
  • Registered weight class: -60kg
  • Source competition limit: -60kg

3 matches in the rating period

MOMENTUM 11 - Vienna Open BJJ Gi & No Gi
≤ 46 kg · Counts as a competition event
Kids Men Gi / U14 (12-13) years / white Belt / -46kg
  • Registered weight class: -46kg
  • Source competition limit: -46kg

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 7 matches in the rating period Selected outcome

Registrations and outcomes

MOMENTUM 13 - Salzburg Open BJJ Gi & NoGi
white · Counts as a match
Kids Men Gi / U16 (14-15) years / white Belt / -55kg
  • Source belt category: white

2 matches in the rating period

MOMENTUM 12 - Vienna Open BJJ Gi & No Gi
white · Counts as a match
Kids Men Gi / U16 (14-15) years / white Belt / -60kg
  • Source belt category: white

3 matches in the rating period

MOMENTUM 11 - Vienna Open BJJ Gi & No Gi
white · Counts as a match
Kids Men Gi / U14 (12-13) years / white Belt / -46kg
  • Source belt category: white

2 matches in the rating period