Alex Catalin Ersen - 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 1,317

Rating-period composition

Rating matches: 6 0
Record: 4–2 Previous month 4–2
Opponents: 5 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.

July 2026 No new matches Change -1 Rating 1,317

Rating-period composition

Rating matches: 6 0
Record: 4–2 Previous month 4–2
Opponents: 5 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.

June 2026 No new matches · 5 left period Change -113 Rating 1,318

Rating-period composition

Rating matches: 6 -5
Record: 4–2 Previous month 9–2
Opponents: 5 -3
Events: 2 -1

5 older matches left the 12-month period: 5 won and 0 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 1,431

Rating-period composition

Rating matches: 11 0
Record: 9–2 Previous month 9–2
Opponents: 8 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 No new matches · 5 left period Change -20 Rating 1,429

Rating-period composition

Rating matches: 11 -5
Record: 9–2 Previous month 13–3
Opponents: 8 0
Events: 3 -1

5 older matches left the 12-month period: 4 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

March 2026 No new matches Change +7 Rating 1,449

Rating-period composition

Rating matches: 16 0
Record: 13–3 Previous month 13–3
Opponents: 8 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.

February 2026 No new matches Change +2 Rating 1,442

Rating-period composition

Rating matches: 16 0
Record: 13–3 Previous month 13–3
Opponents: 8 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.

January 2026 No new matches Change -1 Rating 1,440

Rating-period composition

Rating matches: 16 0
Record: 13–3 Previous month 13–3
Opponents: 8 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.

December 2025 No new matches Change -1 Rating 1,441

Rating-period composition

Rating matches: 16 0
Record: 13–3 Previous month 13–3
Opponents: 8 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.

November 2025 No new matches · 2 left period Change -6 Rating 1,442

Rating-period composition

Rating matches: 16 -2
Record: 13–3 Previous month 14–4
Opponents: 8 -2
Events: 4 -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 3 new matches Change +19 Rating 1,448

Rating-period composition

Rating matches: 18 +3
Record: 14–4 Previous month 12–3
Opponents: 10 +3
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.

Loss

October 18, 2025 Enrique Martin Rodriguez

EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys NO-GI / White / Infantil A / -29,0 kg

Method Submission 01:33 2–6

Marginal influence -32

Win

October 18, 2025 Justin Luis Rayo Marquez

EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys NO-GI / White / Infantil A / -29,0 kg

Method Points 03:00 8–2

Marginal influence +24

Win

October 18, 2025 Hovhannes Hovhannisyan

EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys GI / White / Infantil A / -26,0 kg

Method Submission 01:19 6–0

Marginal influence +9

September 2025 3 new matches Change +8 Rating 1,429

Rating-period composition

Rating matches: 15 +3
Record: 12–3 Previous month 10–2
Opponents: 7 +1
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 27, 2025 Jon Asensio

COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / White / Infantil A / -26,0 kg

Method Submission 02:34 0–2

Marginal influence +16

Win

September 27, 2025 Cesar Sauras Tajuelo

COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / White / Infantil A / -26,0 kg

Method Submission 01:31 12–0

Marginal influence +19

Loss

September 27, 2025 Jon Asensio

COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / White / Infantil A / -26,0 kg

Method Points 03:00 0–6

Marginal influence -25

Relevant matches: 4.5

Official ranking percentile: Top 54%

Performance: -

4.5 weighted matches against 5 different opponents across 2 events

Weighted win rate: -
Expected win rate: -
Average opponent rating: 1,306
Repeated-opponent share: 16.7%
Network connectivity: 80.9%