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Tomasz Kowalczyk

BLANCKE BJJ

W–L
0–2
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,108
Rating based on No-Gi matches in the past 12 months.
Current form
0–2
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

4
Indexed competition matches
Date Opponent Result Event Division
2026-03-14 Nyl Covyn
Loss
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 No-Gi · NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
2026-03-14 Mesa Vermin
Loss
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 No-Gi · NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
2026-03-14 Mesa Vermin
Loss
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 youth_ratings.formats.conflict · BOY KID -34kg CAT 3 (11-12)
2026-03-14 Harun Ahmed Egal
Loss
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 youth_ratings.formats.conflict · BOY KID -34kg CAT 3 (11-12)

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 1,108

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,107

Rating-period composition

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

June 2026 No new matches Change -5 Rating 1,107

Rating-period composition

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

May 2026 No new matches Change +4 Rating 1,112

Rating-period composition

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

April 2026 No new matches Change +1 Rating 1,108

Rating-period composition

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

March 2026 2 new matches Change Starting point Rating 1,107

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 14, 2026 Nyl Covyn
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
Method Submission 00:11 0–0
Marginal influence -41
Loss
March 14, 2026 Mesa Vermin
OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025 NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
Method Submission 01:37 0–10
Marginal influence -37
Relevant matches
1.7
Official ranking percentile
-
Performance
-

1.7 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,446
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 1 event vote Selected outcome

Registrations and outcomes

OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025
U14 · Counts
NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
  • Competition age 12
BOY KID -34kg CAT 3 (11-12)
  • Competition age 12

Classification evidence

Why ≤ 34 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

  • ≤ 34 kg 1 competition event Selected outcome

Registrations and outcomes

OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025
≤ 34 kg · Counts as a competition event
NoGi DIVISION (-16years old) / KID NoGi / KID (-16years old) / -34kg (cat 2 : 10-11-12)
  • Registered weight class: -34kg (cat 2 : 10-11-12)
  • Source competition limit: -34kg (cat 2 : 10-11-12)

2 matches in the rating period

OPEN BRUSSELS 2 FBJJB RANKING KID GI & NoGi 14.03.2025
Does not count
BOY KID -34kg CAT 3 (11-12)
  • Registered weight class: BOY KID -34kg CAT 3 (11-12)
  • Source competition limit: BOY KID -34kg CAT 3 (11-12)

No matches in the rating period · no valid weight evidence