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Sergei Kovalev

Ratiborets Vienna

U14 -105 lbs
W–L
-
Won and lost rating-eligible matches in the past 12 months.
Gi
-
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
2–8
Results from the ten most recent rating-eligible matches.
Opponents
-
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

98
Indexed competition matches
Date Opponent Result Event Division
2026-02-21 Zdeněk Vlček
Loss
TATAMY 19: Czech Open Championship (kids) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2026-02-21 Abubakar Salgereev
Win
TATAMY 19: Czech Open Championship (kids) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2026-02-21 Libor Dobeš
Win
TATAMY 19: Czech Open Championship (kids) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2026-02-21 Filip Krupka
Win
TATAMY 19: Czech Open Championship (kids) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2026-02-21 Zdeněk Vlček
Loss
TATAMY 19: Czech Open Championship (kids) Gi · Kids / Gi / 13-14 years / Boys / White/grey belt / -50 kg
2026-02-21 Armin Zahiri Nejad
Loss
TATAMY 19: Czech Open Championship (kids) No-Gi · Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
2026-02-21 Adam Dockal
Loss
TATAMY 19: Czech Open Championship (kids) No-Gi · Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
2026-02-21 Jan Kubín
Loss
TATAMY 19: Czech Open Championship (kids) No-Gi · Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
2026-02-21 Patrik Trávníček
Loss
TATAMY 19: Czech Open Championship (kids) No-Gi · Kids / No Gi / 13-14 years / Boys / Intermediate / -50 kg
2025-12-06 Zóra Gyenge
Loss
TATAMY 18 KIDS (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Intermediate / -45 kg
2025-12-06 Zóra Gyenge
Loss
TATAMY 18 KIDS (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Intermediate / -45 kg
2025-12-06 Tobias Vohradsky
Win
TATAMY 18 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
2025-12-06 Matyas Divisek
Win
TATAMY 18 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
2025-12-06 Juraj Salgovic
Win
TATAMY 18 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
2025-12-06 Richard Bulej
Win
TATAMY 18 KIDS (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -45 kg
2025-11-29 Marko Dordevic
Win
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi Gi · Kids Men Gi / U14 (12-13) years / Kids advanced / -46kg
2025-11-29 Marko Dordevic
Win
MOMENTUM 11 - Vienna Open BJJ Gi & No Gi Gi · Kids Men Gi / U14 (12-13) years / Kids advanced / -46kg
2025-06-21 Bastian Pfuisi
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament No-Gi · Boys No-Gi / White / Grey / U14 (12-13yrs) / -44 kg
2025-06-21 Hamza Djamulaev
Loss
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament No-Gi · Boys No-Gi / White / Grey / U14 (12-13yrs) / -44 kg
2025-06-21 Nikolai Kuranov
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Gi · Boys Gi / White / Grey / U16 (14- 15yrs) / -44 kg
2025-06-21 Nikolai Kuranov
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Gi · Boys Gi / White / Grey / U16 (14- 15yrs) / -44 kg
2025-06-21 Bastian Pfuisi
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Gi · Boys Gi / White / Grey / U14 (12-13yrs) / -44 kg
2025-06-21 Zóra Gyenge
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Gi · Boys Gi / White / Grey / U14 (12-13yrs) / -44 kg
2025-06-21 Oskar Katzenberger
Win
Styrian Open Championship 2025 BJJ / Jiu Jitsu Gi and NoGi, Fighting, Duo System Tournament Gi · Boys Gi / White / Grey / U14 (12-13yrs) / -44 kg
2025-05-10 Abubakar Chamburaev
Loss
Grappling Industries AUSTRIA No-Gi · No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -95 lbs
2025-05-10 Abubakar Chamburaev
Loss
Grappling Industries AUSTRIA No-Gi · No Gi Kids / Intermediate (Grey) / 12 - 13 years (Male) / -95 lbs
2024-12-07 Bohdan Olashyn
Loss
TATAMY 12 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-12-07 Baibars Khashev
Loss
TATAMY 12 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-12-07 Denis Sivak
Loss
TATAMY 12 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-12-07 Tomas Svitek
Loss
TATAMY 12 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-12-07 Alex Burďuch
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-12-07 Matěj Doseděl
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-12-07 Volodymyr Demchuk
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-12-07 Eliáš Ferkl
Loss
TATAMY 12 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-10-05 Mykyta Svidnytskyi
Loss
NAGA Europe Grappling Championship No-Gi · Children No-Gi (Male) / Expert / 35 - 39.9 / 10-11 years
2024-10-05 Mykyta Svidnytskyi
Loss
NAGA Europe Grappling Championship Gi · Children Gi (Male) / Expert / 35 - 39.9 / 10-11 years
2024-09-28 Karen Avahimian
Win
TATAMY 11 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-09-28 Maksym Mazurenko
Win
TATAMY 11 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-09-28 Zubayr Tsikhesashev
Loss
TATAMY 11 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-09-28 Khairullah Djamulaev
Loss
TATAMY 11 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-09-28 Zubayr Tsikhesashev
Loss
TATAMY 11 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-09-28 Karen Avahimian
Win
TATAMY 11 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-05-04 Ivan Bosneag
Win
TATAMY 9 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-05-04 Hamzat Djamulaev
Win
TATAMY 9 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-05-04 Miroslav Streit
Win
TATAMY 9 (No-GI and GI round robin) No-Gi · Kids / No Gi / 10-12 years / Boys / Beginner / -36 kg
2024-05-04 Andrew Bartol
Win
TATAMY 9 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-05-04 Baibars Khashev
Loss
TATAMY 9 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-05-04 David Zamrykot
Win
TATAMY 9 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-05-04 Mustafa Tepsurkaev
Win
TATAMY 9 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg
2024-05-04 Jerguš Filus
Win
TATAMY 9 (No-GI and GI round robin) Gi · Kids / Gi / 10-12 years / Boys / White/grey belt / -36 kg

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.

September 2025 No new matches Change 0 Rating 1,246

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.

Relevant matches
-
Official ranking percentile
-
Performance
-

- weighted matches against - different opponents across 3 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
-
Repeated-opponent share
-
Network connectivity
-