TopBJJ Index Youth

TopBJJ Index

Search TopBJJ Index
Language selector
Menu
NL

Noah Mason

Jiu Jitsu Factory

W–L
5–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,409
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
5–2
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
1
Silver
2
Bronze
1
Total medals
4
Events with results
5

Full career record

Wins
9
Losses
8
Matches
17
Win rate
52.9%

Ways of winning

Submission
2
Points
6
Decision
1
Disqualification
0

Personal records

Longest winning streak
2
Longest submission streak
1
Longest gold streak
1
Largest recorded points win
12–2

Recent recorded placements

  5. VERSUS Kids 2

    NL Event record 1–1

    • Kids / <12yr / White / -42kg

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
0
Unique opponents
7
Distinct events
2

Ways of winning

  • Submission 1 20%
  • Points 3 60%
  • Decision 1 20%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
1409
Record
5–2
Win rate
71%
Submission share
20%

No-Gi

Rating
-
Record
-
Win rate
-
Submission share
-

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,409
Change over 90 days
-13
Highest rating in 12 months
1,422
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,410
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
5.1
Confidence
69/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 2–4 2–4 across 6 rematches against 2 repeat opponents.

Top 10 highest-ranked defeated opponents

Past 12 months

  1. #83 Amy Broodkoorn · Lion Cub Jiu Jitsu Competition 5 Pts 9–0
  2. #187 Jayden Van Vliet · Lion Cub Jiu Jitsu Competition 5 Sub 02:18 2–0
  3. #428 Mouad Zouggari · Lion Cub Jiu Jitsu Competition 5 Dec 0–0
  4. #664 Ziyad Lahmidi · Nijmegen Open BJJ 2026 Pts 0–0
  5. #1336 Benalla Mohammed · Nijmegen Open BJJ 2026 Pts 2–0

Full career

  1. #83 Amy Broodkoorn · Lion Cub Jiu Jitsu Competition 5 Pts 9–0 Earlier · Pts 12–2 September 22, 2024 · VERSUS Kids 2
  2. #187 Jayden Van Vliet · Lion Cub Jiu Jitsu Competition 5 Sub 02:18 2–0
  3. #428 Mouad Zouggari · Lion Cub Jiu Jitsu Competition 5 Dec 0–0
  4. #664 Ziyad Lahmidi · Nijmegen Open BJJ 2026 Pts 0–0
  5. #1336 Benalla Mohammed · Nijmegen Open BJJ 2026 Pts 2–0
  6. #1459 Luuk Van Der Put · Nijmegen Open BJJ 2025 Pts 7–0

Rivals

Opponent Head-to-head record Matches
Presiyan Tasev 0–4 4
Amy Broodkoorn 2–0 2

Around this athlete

Athlete Rank Rating
Colin Damm #358 1,410
Noah Mason #359 1,409
Lenny Arend #360 1,409

Scheduled

Recent tournaments

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 1,409

Rating-period composition

Rating matches
7 0
Record
5–2 Previous month 5–2
Opponents
7 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 0 Rating 1,410

Rating-period composition

Rating matches
7 0
Record
5–2 Previous month 5–2
Opponents
7 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 Change +1 Rating 1,410

Rating-period composition

Rating matches
7 0
Record
5–2 Previous month 5–2
Opponents
7 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.

May 2026 4 new matches · 2 left period Change +10 Rating 1,409

Rating-period composition

Rating matches
7 +2
Record
5–2 Previous month 4–1
Opponents
7 +2
Events
2 0

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.

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
May 30, 2026 Jimi Kleingeld
Nijmegen Open BJJ 2026 Kids / 13 - 15 years boys / Grey / -55 kg
Method Points 04:00 0–2
Marginal influence -39
Win
May 30, 2026 Ziyad Lahmidi
Nijmegen Open BJJ 2026 Kids / 13 - 15 years boys / Grey / -55 kg
Method Points 04:00 0–0
Marginal influence +22
Loss
May 30, 2026 Presiyan Tasev
Nijmegen Open BJJ 2026 Kids / 13 - 15 years boys / Grey / -55 kg
Method Submission 00:14 2–0
Marginal influence -17
Win
May 30, 2026 Benalla Mohammed
Nijmegen Open BJJ 2026 Kids / 13 - 15 years boys / Grey / -55 kg
Method Points 04:00 2–0
Marginal influence +13
April 2026 No new matches · 4 left period Change -30 Rating 1,399

Rating-period composition

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

4 older matches left the 12-month period: 2 won and 2 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 +13 Rating 1,429

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
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.

February 2026 No new matches Change +3 Rating 1,416

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
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.

January 2026 No new matches Change -12 Rating 1,413

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
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.

December 2025 No new matches Change 0 Rating 1,425

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
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.

November 2025 No new matches Change +3 Rating 1,425

Rating-period composition

Rating matches
9 0
Record
6–3 Previous month 6–3
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.

October 2025 3 new matches Change +138 Rating 1,422

Rating-period composition

Rating matches
9 +3
Record
6–3 Previous month 3–3
Opponents
8 +3
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
October 25, 2025 Jayden Van Vliet
Lion Cub Jiu Jitsu Competition 5 Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
Method Submission 02:18 2–0
Marginal influence +28
Win
October 25, 2025 Mouad Zouggari
Lion Cub Jiu Jitsu Competition 5 Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
Method Decision 03:00 0–0
Marginal influence +28
Win
October 25, 2025 Amy Broodkoorn
Lion Cub Jiu Jitsu Competition 5 Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
Method Points 03:00 9–0
Marginal influence +40
September 2025 No new matches · 2 left period Change -41 Rating 1,284

Rating-period composition

Rating matches
6 -2
Record
3–3 Previous month 4–4
Opponents
5 -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.

Relevant matches
5.1
Official ranking percentile
Top 25%
Performance
-

5.1 weighted matches against 7 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,410
Repeated-opponent share
0.0%
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 1 event vote Selected outcome

Registrations and outcomes

Nijmegen Open BJJ 2026
U16 · Counts
Kids / 13 - 15 years boys / Grey / -55 kg
  • Competition age 15
  • Registered age: u16
  • Source category: u16
Lion Cub Jiu Jitsu Competition 5
Does not count
Boys NO-GI / 13 & 14 years old (DAY 1: Saturday) / Grey belt / -50 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
  • Competition age 14
  • Registered age: u14
  • Source category: u14

Classification evidence

Why ≤ 50 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

  • ≤ 50 kg 1 competition event Selected outcome
  • ≤ 55 kg 1 competition event

Registrations and outcomes

Nijmegen Open BJJ 2026
≤ 55 kg · Counts as a competition event
Kids / 13 - 15 years boys / Grey / -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

4 matches in the rating period

Lion Cub Jiu Jitsu Competition 5
Does not count
Boys NO-GI / 13 & 14 years old (DAY 1: Saturday) / Grey belt / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

No matches in the rating period · no valid weight evidence

Lion Cub Jiu Jitsu Competition 5
≤ 50 kg · Counts as a competition event
Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

3 matches in the rating period

Classification evidence

Why Grey?

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

  • grey 7 matches in the rating period Selected outcome

Registrations and outcomes

Nijmegen Open BJJ 2026
grey · Counts as a match
Kids / 13 - 15 years boys / Grey / -55 kg
  • Source belt category: grey

4 matches in the rating period

Lion Cub Jiu Jitsu Competition 5
grey · Counts as a match
Boys & Girls GI / 12 - 14 years old (DAY 1: Saturday) / White & Grey belt / -46 & -50 & -55 kg
  • Source belt category: grey

3 matches in the rating period