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Soma Sakai

Gracie Barra Sternschanze

W–L
12–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,416
Rating based on Gi matches in the past 12 months.
No-Gi
1,422
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
8
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

Tournament history

Events

17
Events
Date Event Result Format Division
Grappling Industries HAMBURG Germany · Gi · 14–15 yo · yellow/orange · ≤115 lb ; No-Gi · 14–15 yo · yellow/orange · ≤115 lb 3–1 W–L: Win / Loss GiNo-Gi
  • Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
  • No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
Combattle No-Gi Kids Grappling Tournament Germany · No-Gi · 10–15 yo · ≤54 kg 2–0 W–L: Win / Loss No-Gi
  • Teens 10 - 15 Years / Boys / - 54 Kg / 12-13 Jahre
The Combatch Games 5: Kids & Teens - Berlin Germany · Gi · 10–13 yo · ≥45 kg ; No-Gi · 10–13 yo · ≥45 kg 3–0 W–L: Win / Loss GiNo-Gi
  • Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
  • Openclass Male Gi (10 - 13 years) / Fortgeschritten / 10 - 13 years / Open Class Heavy (+45kg)
Grappling Industries AMSTERDAM the Netherlands · Gi · 12–13 yo · yellow/orange · ≤115 lb ; No-Gi · 12–13 yo · yellow/orange · ≤115 lb 4–0 W–L: Win / Loss GiNo-Gi
  • Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
  • No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
ADCC Amateur World Championship 2025 PL · No-Gi · 11–12 yo · ≤45 kg 2–2 W–L: Win / Loss No-Gi
  • Place #4
ILLCS Germany IX Spring 2025 Germany · Gi · 10–13 yo · ≤46 kg ; Gi · 10–13 yo 5–1 W–L: Win / Loss Gi
  • Kids 10-13 Open Class
  • Kids 10-13 / 46 kg
Grappling Industries BERLIN Germany · No-Gi · 12–13 yo · yellow/orange · ≤105 lb 2–0 W–L: Win / Loss No-Gi
  • No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -105 lbs
Fennec BJJ Kids Cup Vol. 6 Germany · Gi · 12 yo · yellow/orange · ≤45 kg ; No-Gi · 12 yo · yellow/orange · ≤45 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Junior II (11/12 yrs) / Yellow/Orange / -45.00 kg
  • Boys NoGi / Junior II (11/12 yrs) / Yellow/Orange / -45.00 kg
ILLCS GERMANY VIII Fall 2024 Germany · Gi · 10–13 yo 3–2 W–L: Win / Loss Gi
  • Place #4
2024 Berlin Open Germany · Gi · ≤47.6 kg ; No-Gi · ≤47.6 kg 0–2 W–L: Win / Loss GiNo-Gi
  • Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
  • No Gi Kids Challenger / Boys / Regular Challenger / Light II (Up to 47.60 kg)
NAGA Germany Grappling Championship Germany · Gi · 10–11 yo · 40–44.9 kg ; No-Gi · 10–11 yo · 40–44.9 kg 2–1 W–L: Win / Loss GiNo-Gi
  • Children Gi (Male) / Expert / 40 - 44.9 / 10-11 years
  • Children No-Gi (Male) / Expert / 40 - 44.9 / 10-11 years
Lion Cub Jiu Jitsu Competition 2 the Netherlands · Gi · yellow/orange · ≤46 kg 2–1 W–L: Win / Loss Gi
  • Boys / 10 - 12 Boys / Yellow & Orange / -46 kg
Fennec BJJ Kids Cup Vol.5 Germany · Gi · 12 yo · yellow/orange · ≤48 kg ; No-Gi · 12 yo · yellow/orange · ≤45 kg 4–0 W–L: Win / Loss GiNo-Gi
  • Boys Gi / Junior II (11/12 yrs) / Yellow/Orange (bzw. 1 bis 3 Jahre Training) / -48,00 kg
  • Boys NoGi / Junior II (11/12 yrs) / Yellow/Orange (bzw. 1 bis 3 Jahre Training) / -45.00 kg
ILLCS VI Germany Spring 2024 Germany · Gi · 10–13 yo · ≤52 kg ; Gi · 10–13 yo 6–0 W–L: Win / Loss Gi
  • Kids 10-13 Open Class
  • Kids 10-13 / 52 kg
Doso Kids Cup - The Combatch Games Germany · Gi · 11 yo · orange · ≤50 kg 3–0 W–L: Win / Loss Gi
  • Mixed / Orange / Junior 2 (10/11yrs) / - 50 kg
Fennec BJJ Kids Cup Vol. 4 Germany · Gi · 12 yo · yellow/orange · ≤45 kg 3–0 W–L: Win / Loss Gi
  • Boys Gi / Junior II (11/12 yrs) / Yellow/Orange (bzw. 1 bis 3 Jahre Training) / -45.00 kg
Nijmegen Open BJJ 2023 the Netherlands · Gi · 10–12 yo · yellow/orange · ≤42 kg 2–1 W–L: Win / Loss Gi
  • Kids / 10 - 12 years boys / Yellow & Orange / -42 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 4 new matches Change +6 Rating 1,490

Rating-period composition

Rating matches
13 +4
Record
12–1 Previous month 9–0
Opponents
8 +2
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
August 15, 2026 Fuga Sakai
Grappling Industries HAMBURG Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
Method Points 04:00 9–2
Marginal influence +4
Win
August 15, 2026 Fuga Sakai
Grappling Industries HAMBURG Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
Method Submission 02:36 5–4
Marginal influence +4
Win
August 15, 2026 David Chkhaidze
Grappling Industries HAMBURG No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
Method Submission 01:22 0–0
Marginal influence +8
Loss
August 15, 2026 Fuga Sakai
Grappling Industries HAMBURG No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
Method Submission 00:31 0–6
Marginal influence -26
July 2026 No new matches Change +1 Rating 1,484

Rating-period composition

Rating matches
9 0
Record
9–0 Previous month 9–0
Opponents
6 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.

June 2026 No new matches Change +5 Rating 1,483

Rating-period composition

Rating matches
9 0
Record
9–0 Previous month 9–0
Opponents
6 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.

May 2026 No new matches Change -5 Rating 1,478

Rating-period composition

Rating matches
9 0
Record
9–0 Previous month 9–0
Opponents
6 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 2 new matches Change +18 Rating 1,483

Rating-period composition

Rating matches
9 +2
Record
9–0 Previous month 7–0
Opponents
6 +2
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.
Win
April 26, 2026 Omar Al Mkhlalte
Combattle No-Gi Kids Grappling Tournament Teens 10 - 15 Years / Boys / - 54 Kg / 12-13 Jahre
Method Submission 01:07 0–0
Marginal influence +12
Win
April 26, 2026 Umar Hammad
Combattle No-Gi Kids Grappling Tournament Teens 10 - 15 Years / Boys / - 54 Kg / 12-13 Jahre
Method Submission 01:13 5–0
Marginal influence +6
March 2026 No new matches · 2 left period Change -19 Rating 1,465

Rating-period composition

Rating matches
7 -2
Record
7–0 Previous month 9–0
Opponents
4 0
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 -4 Rating 1,484

Rating-period composition

Rating matches
9 0
Record
9–0 Previous month 9–0
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 3 new matches Change +29 Rating 1,488

Rating-period composition

Rating matches
9 +3
Record
9–0 Previous month 6–0
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.
Win
January 31, 2026 Yakup Kangal
The Combatch Games 5: Kids & Teens - Berlin Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
Method Submission 02:43 2–2
Marginal influence +6
Win
January 31, 2026 Lukas Steindl
The Combatch Games 5: Kids & Teens - Berlin Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
Method Submission 00:42 0–0
Marginal influence +6
Win
January 31, 2026 Lukas Steindl
The Combatch Games 5: Kids & Teens - Berlin Openclass Male Gi (10 - 13 years) / Fortgeschritten / 10 - 13 years / Open Class Heavy (+45kg)
Method Submission 00:16 0–0
Marginal influence +8
December 2025 No new matches Change 0 Rating 1,459

Rating-period composition

Rating matches
6 0
Record
6–0 Previous month 6–0
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 4 new matches · 4 left period Change +24 Rating 1,459

Rating-period composition

Rating matches
6 0
Record
6–0 Previous month 6–0
Opponents
3 -1
Events
2 0

4 older matches left the 12-month period: 4 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
November 2, 2025 Mykyta Svidnytskyi
Grappling Industries AMSTERDAM No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
Method Points 03:00 2–0
Marginal influence +13
Win
November 2, 2025 Mykyta Svidnytskyi
Grappling Industries AMSTERDAM No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
Method Submission 01:27 0–0
Marginal influence +13
Win
November 2, 2025 Taye Beudeker
Grappling Industries AMSTERDAM Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
Method Submission 01:08 6–0
Marginal influence +10
Win
November 2, 2025 Mykyta Svidnytskyi
Grappling Industries AMSTERDAM Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
Method Points 03:00 2–0
Marginal influence +19
October 2025 No new matches · 2 left period Change +29 Rating 1,435

Rating-period composition

Rating matches
6 -2
Record
6–0 Previous month 6–2
Opponents
4 -1
Events
2 -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.

September 2025 No new matches Change -3 Rating 1,406

Rating-period composition

Rating matches
8 0
Record
6–2 Previous month 6–2
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
10.1
Official ranking percentile
Top 10%
Performance
27.1 pp above expectation

10.1 weighted matches against 8 different opponents across 4 events

Weighted win rate
91.1%
Expected win rate
64.0%
Average opponent rating
1,332
Repeated-opponent share
38.5%
Network connectivity
87.6%

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 4 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U16 · Counts
No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
  • Competition age 14
  • Registered age: u16
  • Source category: u16
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
  • Competition age 14
  • Registered age: u16
  • Source category: u16
HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
U16 · Counts
Boys GI Absolute Division
  • Competition age 14
  • Registered age: u18
  • Source category: u18
Boys No-Gi (under 16 y.o.) / Orange / 12-13 years / -50 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Boys Gi (under 16 y.o.) / Orange / 12-13 years / -50 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Combattle No-Gi Kids Grappling Tournament
U16 · Counts
Teens 10 - 15 Years / Boys / - 54 Kg / 12-13 Jahre
  • Competition age 14
  • Registered age: u14
  • Source category: u14
The Combatch Games 5: Kids & Teens - Berlin
U16 · Counts
Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Openclass Male Gi (10 - 13 years) / Fortgeschritten / 10 - 13 years / Open Class Heavy (+45kg)
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Grappling Industries AMSTERDAM
Does not count
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
  • Competition age 13
  • Registered age: u14
  • Source category: u14
Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
  • Competition age 13
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 52 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

  • ≤ 52 kg 2 competition events Selected outcome
  • ≤ 54 kg 1 competition event

Registrations and outcomes

Grappling Industries HAMBURG
≤ 52 kg · Counts as a competition event
No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

2 matches in the rating period

Grappling Industries HAMBURG
≤ 52 kg · Counts as a competition event
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

2 matches in the rating period

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys GI Absolute Division

No matches in the rating period · no valid weight evidence

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys No-Gi (under 16 y.o.) / Orange / 12-13 years / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

HAMBURG OPEN CHAMPIONSHIP 2026 I EUROPEAN CUP
Does not count
Boys Gi (under 16 y.o.) / Orange / 12-13 years / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

Combattle No-Gi Kids Grappling Tournament
≤ 54 kg · Counts as a competition event
Teens 10 - 15 Years / Boys / - 54 Kg / 12-13 Jahre
  • Registered weight class: - 54 Kg
  • Source competition limit: - 54 Kg

2 matches in the rating period

The Combatch Games 5: Kids & Teens - Berlin
Does not count
Openclass Male Nogi (10 - 13 years) / Experten / 10 - 13 years / Open Class - Heavy (+45kg)

2 matches in the rating period · weight class could not be normalized reliably

The Combatch Games 5: Kids & Teens - Berlin
Does not count
Openclass Male Gi (10 - 13 years) / Fortgeschritten / 10 - 13 years / Open Class Heavy (+45kg)

1 match in the rating period · weight class could not be normalized reliably

Grappling Industries AMSTERDAM
≤ 52 kg · Counts as a competition event
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

2 matches in the rating period

Grappling Industries AMSTERDAM
≤ 52 kg · Counts as a competition event
Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
  • Registered weight class: -115 lbs
  • Source competition limit: -115 lbs

2 matches in the rating period

Classification evidence

Why Orange?

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

  • orange 8 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
orange · Counts as a match
Gi Kids / 14 - 15 years (Male) / Yellow/Orange / -115 lbs
  • Source belt category: orange

2 matches in the rating period

Grappling Industries HAMBURG
orange · Counts as a match
No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -115 lbs
  • Source belt category: orange

2 matches in the rating period

Grappling Industries AMSTERDAM
orange · Counts as a match
No Gi Kids / Advanced (Yellow/Orange) / 12 - 13 years (Male) / -115 lbs
  • Source belt category: orange

2 matches in the rating period

Grappling Industries AMSTERDAM
orange · Counts as a match
Gi Kids / Yellow/Orange / 12 - 13 years (Male) / -115 lbs
  • Source belt category: orange

2 matches in the rating period