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Nero Klerks

RYU Martial Arts & Fitness

W–L
2–5
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,173
Rating based on No-Gi matches in the past 12 months.
Current form
2–5
Results from the ten most recent rating-eligible matches.
Opponents
7
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

7
Indexed competition matches
Date Opponent Result Event Division
2026-03-28 Luuk Van Der Put
Win
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI No-Gi · Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
2026-03-28 Paris Sidiropoulos
Loss
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI No-Gi · Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
2026-03-28 Tao Vallée
Loss
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI No-Gi · Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
2026-03-28 Noah Schicha
Loss
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI No-Gi · Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
2025-10-18 Julius Van Leijen
Win
2025 NO GI International Veluwe Open Jiu Jitsu Championship No-Gi · Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
2025-10-18 Rayan Mouhdad
Loss
2025 NO GI International Veluwe Open Jiu Jitsu Championship No-Gi · Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
2025-10-18 Amy Broodkoorn
Loss
2025 NO GI International Veluwe Open Jiu Jitsu Championship No-Gi · Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 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 0 Rating 1,173

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
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 +1 Rating 1,173

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
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 +4 Rating 1,172

Rating-period composition

Rating matches
7 0
Record
2–5 Previous month 2–5
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 No new matches Change 0 Rating 1,168

Rating-period composition

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

April 2026 No new matches Change +2 Rating 1,168

Rating-period composition

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

March 2026 4 new matches Change -14 Rating 1,166

Rating-period composition

Rating matches
7 +4
Record
2–5 Previous month 1–2
Opponents
7 +4
Events
2 +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
March 28, 2026 Luuk Van Der Put
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
Method Points 04:00 12–6
Marginal influence +17
Loss
March 28, 2026 Paris Sidiropoulos
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
Method Submission 03:25 0–7
Marginal influence -18
Loss
March 28, 2026 Tao Vallée
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
Method Points 04:00 2–11
Marginal influence -28
Loss
March 28, 2026 Noah Schicha
International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
Method Points 04:00 6–8
Marginal influence -10
February 2026 No new matches Change +3 Rating 1,180

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

January 2026 No new matches Change -1 Rating 1,177

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

December 2025 No new matches Change 0 Rating 1,178

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

November 2025 No new matches Change +7 Rating 1,178

Rating-period composition

Rating matches
3 0
Record
1–2 Previous month 1–2
Opponents
3 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.

October 2025 3 new matches Change Starting point Rating 1,171

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 18, 2025 Julius Van Leijen
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
Method Submission 02:18 4–6
Marginal influence +33
Loss
October 18, 2025 Rayan Mouhdad
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
Method Points 04:00 0–6
Marginal influence -17
Loss
October 18, 2025 Amy Broodkoorn
2025 NO GI International Veluwe Open Jiu Jitsu Championship Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
Method Submission 01:03 2–6
Marginal influence -19
Relevant matches
5.1
Official ranking percentile
Top 91%
Performance
-

5.1 weighted matches against 7 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,398
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

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
U16 · Counts
Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
  • Competition age 14
  • Registered age: u16
  • Source category: u16
2 Supporter tickets
2025 NO GI International Veluwe Open Jiu Jitsu Championship
Does not count
2 Supporter tickets
Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16

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

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
≤ 55 kg · Counts as a competition event
Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
  • Registered weight class: -55 kg
  • Source competition limit: -55 kg

4 matches in the rating period

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
Does not count
2 Supporter tickets

No matches in the rating period · no valid weight evidence

2025 NO GI International Veluwe Open Jiu Jitsu Championship
Does not count
2 Supporter tickets

No matches in the rating period · no valid weight evidence

2025 NO GI International Veluwe Open Jiu Jitsu Championship
≤ 50 kg · Counts as a competition event
Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

3 matches in the rating period

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 7 matches in the rating period Selected outcome

Registrations and outcomes

International Veluwe Open Jiu Jitsu Championship 2026 GI & NO-GI
yellow · Counts as a match
Kids No-GI / 13 - 15 years boys / Yellow & Orange & Green / -50 & -55 kg
  • Source belt category: yellow

4 matches in the rating period

2025 NO GI International Veluwe Open Jiu Jitsu Championship
yellow · Counts as a match
Kids No-gi / 11 - 15 years boys / Yellow & Orange / -46 & -50 kg
  • Source belt category: yellow

3 matches in the rating period