TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
ES

Sergio Calderón Losada

CFC Team

W–L
12–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,544
Rating based on Gi matches in the past 12 months.
No-Gi
1,218
Rating based on No-Gi matches in the past 12 months.
Current form
9–1
Results from the ten most recent rating-eligible matches.
Opponents
9
Unique opponents faced in rating-eligible matches in the past 12 months.

Tournament history

Events

29
Events
Date Event Result Format Division
KIMURA CUP SALOU ES · Gi · orange · ≤56 kg 3–0 W–L: Win / Loss Gi
  • Boys Gi / Orange / Teen / -56 kg
GIRONA BJJ CUP GI & NO-GI 2026 ES · Gi · yellow · ≤55 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil B / -55,0 kg
GILAND BJJ KIDS GI & NO-GI 2025 ES · Gi · grey/yellow · ≤54 kg 2–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
  • Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
EUROPE CUP BJJ 2025 - ETAPA FINAL ES · Gi · yellow · ≤54 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
COSTA DAURADA BJJ CUP GI & NO-GI 2025 ES · Gi · yellow · ≤54 kg ; No-Gi · yellow · ≤54 kg 4–1 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
WORLD CUP BJJ 2025 ES · Gi · yellow · ≤50 kg ; No-Gi · yellow · ≤50 kg 2–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -50,0 Kg
  • Kids Boys NO-GI / Yellow / Infanto Juvenil A / -50,0 Kg
VINYOLS OPEN 2025 ES · Gi · 13 yo · grey/yellow · ≤51 kg 1–0 W–L: Win / Loss Gi
  • Boys Gi/ Grey-Yellow / Teen I (13yrs) / -51,00 kg
GIRONA BJJ CUP GI & NO-GI 2025 ES · Gi · yellow · ≤50 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -50,0 Kg
GILAND BJJ 2025 ES · Gi · yellow · ≤50 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -50,0 Kg
KIMURA CUP BARCELONA 2025. ES · Gi · yellow · ≤45 kg 1–0 W–L: Win / Loss Gi
  • Boys Gi / Yellow / Junior / -45 kg
XVI Campeonato de España 2025 (Gi, NoGi & Kids) ES · Gi · yellow · ≤52 kg ; No-Gi · yellow · ≤51 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Niños GI / Yellow / Cadete 1 / -52 Kg
  • Niños No-GI / Yellow / Cadete 1 / -51 Kg
EUROPE CUP BJJ 2024 ES · Gi · yellow · ≤46 kg 0–1 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -46,0 kg
GILAND BJJ KIDS GI & NO-GI 2024 ES · Gi · yellow · ≤46 kg ; No-Gi · white/yellow · ≤46 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -46,0 kg
  • Kids Boys NO-GI / White-Yellow / Infanto Juvenil A / -46,0 kg
OPEN COSTA DAURADA 2024 ES · Gi · yellow · ≤46 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -46,0 kg
ASTURIAS OPEN BJJ 2024 ES · Gi · yellow · ≤46 kg 1–1 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -46,0 kg
SUMMER CUP BJJ GI 2024 ES · Gi · grey/yellow · ≤42 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Grey-Yellow / Infanto Juvenil A / -42,0 kg
WORLD CUP BJJ 2024 ES · Gi · yellow · ≤46 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -46,0 kg
OPEN GETXO DE BJJ GI & NO-GI 2024 ES · Gi · yellow · ≤42 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -42,0 kg
CAMPEONATO DE ESPAÑA DE BJJ GI & NO-GI 2024 ES · Gi · yellow · ≤42 kg 0–1 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -42,0 kg
GILAND BJJ 2024 ES · Gi · yellow · ≤42 kg 0–1 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infanto Juvenil A / -42,0 kg
OPEN CASTILLA Y LEÓN DE BJJ GI & NO-GI 2024 ES · Gi · grey/yellow · ≤42 kg 2–0 W–L: Win / Loss Gi
  • Kids Boys GI / Grey-Yellow / Infanto Juvenil A / -42,0 kg
XV Campeonato de España 2024 (Gi, NoGi & Kids) ES · Gi · yellow · ≤44 kg 1–0 W–L: Win / Loss Gi
  • Niños GI / Yellow/ Cadete 1 / -44 Kg
MADRID CUP BJJ 2023 ES · Gi · yellow · ≤41.7 kg 1–0 W–L: Win / Loss Gi
  • Kids Boys GI / Yellow / Infantil B / -41,7 kg
Copa Kimura Madrid 2023 | Gi - NoGi - Kids ES · Gi · yellow · ≤39 kg 0–1 W–L: Win / Loss Gi
  • Boys Gi / Yellow / Infantil / -39 Kg
EUROPE BJJ CUP KIDS 2023 ES · Gi · yellow · ≤38 kg 0–1 W–L: Win / Loss Gi
  • Boys Gi / Yellow / Infantil B / -38,0 kg
OPEN COSTA DAURADA BJJ 2023 ES · Gi · yellow · ≤38 kg 0–1 W–L: Win / Loss Gi
  • Boys Gi / Yellow / Infantil B / -38,0 kg
SUMMER CUP BJJ Gi 2023 ES · Gi · grey/yellow · ≤38 kg 1–0 W–L: Win / Loss Gi
  • Boys Gi / Grey-Yellow / Infant / -38kg
GILAND BJJ KIDS 2023 ES · Gi · yellow · ≤38 kg 1–1 W–L: Win / Loss Gi
  • Boys Gi / Yellow / Infantil B / -38,0 kg
Campeonato de España 2023 (Gi, NoGi & Kids) ES · Gi · yellow · ≤36 kg 0–1 W–L: Win / Loss Gi Niños Gi / Yellow / Infantil / -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.

August 2026 No new matches Change +1 Rating 1,527

Rating-period composition

Rating matches
13 0
Record
12–1 Previous month 12–1
Opponents
9 0
Events
5 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 1,526

Rating-period composition

Rating matches
13 0
Record
12–1 Previous month 12–1
Opponents
9 0
Events
5 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 -21 Rating 1,526

Rating-period composition

Rating matches
13 -2
Record
12–1 Previous month 14–1
Opponents
9 -1
Events
5 -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.

May 2026 No new matches Change -6 Rating 1,547

Rating-period composition

Rating matches
15 0
Record
14–1 Previous month 14–1
Opponents
10 0
Events
6 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 · 3 left period Change -26 Rating 1,553

Rating-period composition

Rating matches
15 -3
Record
14–1 Previous month 17–1
Opponents
10 -2
Events
6 -3

3 older matches left the 12-month period: 3 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

March 2026 4 new matches · 1 left period Change +25 Rating 1,579

Rating-period composition

Rating matches
18 +3
Record
17–1 Previous month 14–1
Opponents
12 +3
Events
9 +1

1 older matches left the 12-month period: 1 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
March 14, 2026 Ian Corral
KIMURA CUP SALOU Boys Gi / Orange / Teen / -56 kg
Method Points 03:00 10–1
Marginal influence +9
Win
March 14, 2026 Nicolás Castañeda
KIMURA CUP SALOU Boys Gi / Orange / Teen / -56 kg
Method Points 03:00 5–0
Marginal influence +11
Win
KIMURA CUP SALOU Boys Gi / Orange / Teen / -56 kg
Method Submission 00:32 0–0
Marginal influence +8
Win
March 8, 2026 Aaron Mesas Herrera
GIRONA BJJ CUP GI & NO-GI 2026 Kids Boys GI / Yellow / Infanto Juvenil B / -55,0 kg
Method Submission 01:31 6–0
Marginal influence +10
February 2026 No new matches · 3 left period Change -35 Rating 1,554

Rating-period composition

Rating matches
15 -3
Record
14–1 Previous month 17–1
Opponents
9 -2
Events
8 -1

3 older matches left the 12-month period: 3 won and 0 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

January 2026 No new matches Change +7 Rating 1,589

Rating-period composition

Rating matches
18 0
Record
17–1 Previous month 17–1
Opponents
11 0
Events
9 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 1,582

Rating-period composition

Rating matches
18 0
Record
17–1 Previous month 17–1
Opponents
11 0
Events
9 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 · 4 left period Change +2 Rating 1,582

Rating-period composition

Rating matches
18 -2
Record
17–1 Previous month 18–2
Opponents
11 -1
Events
9 -1

4 older matches left the 12-month period: 3 won and 1 lost. The rating is then recalculated across the full network, so the monthly change is not a sum of separate deductions.

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
November 29, 2025 Marc Parraga Sanchez
GILAND BJJ KIDS GI & NO-GI 2025 Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 00:58 0–0
Marginal influence +9
Win
November 29, 2025 Gerard Parraga Sanchez
GILAND BJJ KIDS GI & NO-GI 2025 Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 00:54 0–0
Marginal influence +11
October 2025 2 new matches Change +17 Rating 1,580

Rating-period composition

Rating matches
20 +2
Record
18–2 Previous month 16–2
Opponents
12 +1
Events
10 +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
EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Points 04:00 2–0
Marginal influence +14
Win
October 18, 2025 Yago Magdaleno Barbosa
EUROPE CUP BJJ 2025 - ETAPA FINAL Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 00:18 0–0
Marginal influence +11
September 2025 5 new matches · 3 left period Change +40 Rating 1,563

Rating-period composition

Rating matches
18 +2
Record
16–2 Previous month 14–2
Opponents
11 0
Events
9 -1

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

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
September 27, 2025 Logan De Las Salas Herrera
COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 02:19 2–0
Marginal influence -26
Win
September 27, 2025 Marc Parraga Sanchez
COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 01:03 5–0
Marginal influence -14
Win
September 27, 2025 Logan De Las Salas Herrera
COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Points 04:00 11–0
Marginal influence +12
Win
September 27, 2025 Marc Parraga Sanchez
COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 02:21 13–0
Marginal influence +8
Win
September 27, 2025 Artem Mukhomor
COSTA DAURADA BJJ CUP GI & NO-GI 2025 Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
Method Submission 00:18 0–0
Marginal influence +14
Relevant matches
9.7
Official ranking percentile
Top 6%
Performance
19.9 pp above expectation

9.7 weighted matches against 9 different opponents across 5 events

Weighted win rate
91.3%
Expected win rate
71.4%
Average opponent rating
1,325
Repeated-opponent share
30.8%
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

KIMURA CUP SALOU
U16 · Counts
Boys Gi / Orange / Teen / -56 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
GIRONA BJJ CUP GI & NO-GI 2026
U16 · Counts
Kids Boys GI / Yellow / Infanto Juvenil B / -55,0 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
GILAND BJJ KIDS GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
EUROPE CUP BJJ 2025 - ETAPA FINAL
Does not count
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
COSTA DAURADA BJJ CUP GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 54 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

  • ≤ 54 kg 1 competition event Selected outcome
  • ≤ 55 kg 1 competition event
  • ≤ 56 kg 1 competition event

Registrations and outcomes

KIMURA CUP SALOU
≤ 56 kg · Counts as a competition event
Boys Gi / Orange / Teen / -56 kg
  • Registered weight class: -56 kg
  • Source competition limit: -56 kg

3 matches in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
≤ 55 kg · Counts as a competition event
Kids Boys GI / Yellow / Infanto Juvenil B / -55,0 kg
  • Registered weight class: -55,0 kg
  • Source competition limit: -55,0 kg

1 match in the rating period

GILAND BJJ KIDS GI & NO-GI 2025
Does not count
Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Registered weight class: -54,0 kg
  • Source competition limit: -54,0 kg

No matches in the rating period · no valid weight evidence

GILAND BJJ KIDS GI & NO-GI 2025
≤ 54 kg · Counts as a competition event
Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
  • Registered weight class: -54,0 kg
  • Source competition limit: -54,0 kg

2 matches in the rating period

EUROPE CUP BJJ 2025 - ETAPA FINAL
≤ 54 kg · Does not count
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Registered weight class: -54,0 kg
  • Source competition limit: -54,0 kg

2 matches in the rating period · outside the three most recent unambiguous events

COSTA DAURADA BJJ CUP GI & NO-GI 2025
≤ 54 kg · Does not count
Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Registered weight class: -54,0 kg
  • Source competition limit: -54,0 kg

2 matches in the rating period · outside the three most recent unambiguous events

COSTA DAURADA BJJ CUP GI & NO-GI 2025
≤ 54 kg · Does not count
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Registered weight class: -54,0 kg
  • Source competition limit: -54,0 kg

3 matches in the rating period · outside the three most recent unambiguous events

Classification evidence

Why Yellow?

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

  • yellow 10 matches in the rating period Selected outcome
  • orange 3 matches in the rating period

Registrations and outcomes

KIMURA CUP SALOU
orange · Counts as a match
Boys Gi / Orange / Teen / -56 kg
  • Source belt category: orange

3 matches in the rating period

GIRONA BJJ CUP GI & NO-GI 2026
yellow · Counts as a match
Kids Boys GI / Yellow / Infanto Juvenil B / -55,0 kg
  • Source belt category: yellow

1 match in the rating period

GILAND BJJ KIDS GI & NO-GI 2025
yellow · Counts as a match
Kids Boys GI / Grey - Yellow / Infanto Juvenil A / -54,0 kg
  • Source belt category: yellow

2 matches in the rating period

EUROPE CUP BJJ 2025 - ETAPA FINAL
yellow · Counts as a match
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Source belt category: yellow

2 matches in the rating period

COSTA DAURADA BJJ CUP GI & NO-GI 2025
yellow · Counts as a match
Kids Boys NO-GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Source belt category: yellow

2 matches in the rating period

COSTA DAURADA BJJ CUP GI & NO-GI 2025
yellow · Counts as a match
Kids Boys GI / Yellow / Infanto Juvenil A / -54,0 kg
  • Source belt category: yellow

3 matches in the rating period