Mariam Kallas Baba - 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 0 Rating 1,137

Rating-period composition

Rating matches: 1 0
Record: 0–1 Previous month 0–1
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.

July 2026 No new matches Change 0 Rating 1,137

Rating-period composition

Rating matches: 1 0
Record: 0–1 Previous month 0–1
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.

June 2026 No new matches · 2 left period Change -57 Rating 1,137

Rating-period composition

Rating matches: 1 -2
Record: 0–1 Previous month 0–3
Opponents: 1 -1
Events: 1 -1

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

May 2026 No new matches Change -2 Rating 1,194

Rating-period composition

Rating matches: 3 0
Record: 0–3 Previous month 0–3
Opponents: 2 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.

April 2026 No new matches Change 0 Rating 1,196

Rating-period composition

Rating matches: 3 0
Record: 0–3 Previous month 0–3
Opponents: 2 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 No new matches · 2 left period Change -76 Rating 1,196

Rating-period composition

Rating matches: 3 -2
Record: 0–3 Previous month 2–3
Opponents: 2 -2
Events: 2 -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.

February 2026 No new matches Change 0 Rating 1,272

Rating-period composition

Rating matches: 5 0
Record: 2–3 Previous month 2–3
Opponents: 4 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.

January 2026 1 new match Change -12 Rating 1,272

Rating-period composition

Rating matches: 5 +1
Record: 2–3 Previous month 2–2
Opponents: 4 +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

January 10, 2026 Julia Dimitrova

CATALUÑA BJJ CUP GI & NO-GI 2026 Kids Girls GI / Grey / Infantil B / -35,0 kg

Method Submission 00:12 0–0

Marginal influence -42

December 2025 No new matches Change -1 Rating 1,284

Rating-period composition

Rating matches: 4 0
Record: 2–2 Previous month 2–2
Opponents: 3 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.

November 2025 No new matches · 2 left period Change -13 Rating 1,285

Rating-period composition

Rating matches: 4 -2
Record: 2–2 Previous month 3–3
Opponents: 3 -2
Events: 2 -1

2 older matches left the 12-month period: 1 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

October 2025 No new matches Change +1 Rating 1,298

Rating-period composition

Rating matches: 6 0
Record: 3–3 Previous month 3–3
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.

September 2025 No new matches Change -7 Rating 1,297

Rating-period composition

Rating matches: 6 0
Record: 3–3 Previous month 3–3
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.

Relevant matches: 1

Official ranking percentile: -

Performance: -

1 weighted matches against 1 different opponents across 1 events

Weighted win rate: -
Expected win rate: -
Average opponent rating: 1,393
Repeated-opponent share: 0.0%
Network connectivity: 80.9%