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Nael Duff

Kampfsportzentrum Winterthur

W–L
2–1
Won and lost rating-eligible matches in the past 12 months.
Gi
1,227
Rating based on Gi matches in the past 12 months.
No-Gi
1,202
Rating based on No-Gi matches in the past 12 months.
Current form
2–1
Results from the ten most recent rating-eligible matches.
Opponents
3
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

5
Indexed competition matches
Date Opponent Result Event Division
2026-03-21 Livio Fontana
Win
Zurich BJJ SPRING OPEN GI and NO-GI 2026 Gi · BOYS GI / Junior / Grey / -50kg
2025-11-23 Anir Saâdi
Win
ADCC Suisse Open Championship 2025 No-Gi · BOYS / 11-12 years / Intermediate / -50 kg
2025-11-23 Vasilije Pijunovic
Loss
ADCC Suisse Open Championship 2025 No-Gi · BOYS / 11-12 years / Intermediate / -50 kg
2025-03-15 Vasilije Pijunovic
Win
ZURICH BJJ SPRING OPEN Gi · BOYS GI / Junior / White / Grey / -45kg
2025-03-15 Anir Saâdi
Loss
ZURICH BJJ SPRING OPEN Gi · BOYS GI / Junior / White / Grey / -45kg

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 +3 Rating 1,297

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,294

Rating-period composition

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

June 2026 No new matches Change -1 Rating 1,294

Rating-period composition

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

May 2026 No new matches Change -4 Rating 1,295

Rating-period composition

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

April 2026 No new matches Change +2 Rating 1,299

Rating-period composition

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

March 2026 1 new match · 2 left period Change +5 Rating 1,297

Rating-period composition

Rating matches
3 -1
Record
2–1 Previous month 2–2
Opponents
3 +1
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.
Win
March 21, 2026 Livio Fontana
Zurich BJJ SPRING OPEN GI and NO-GI 2026 BOYS GI / Junior / Grey / -50kg
Method Submission 00:38 0–0
Marginal influence +19
February 2026 No new matches Change -1 Rating 1,292

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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.

January 2026 No new matches Change 0 Rating 1,293

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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.

December 2025 No new matches Change -1 Rating 1,293

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
Opponents
2 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 2 new matches Change +82 Rating 1,294

Rating-period composition

Rating matches
4 +2
Record
2–2 Previous month 1–1
Opponents
2 0
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
November 23, 2025 Anir Saâdi
ADCC Suisse Open Championship 2025 BOYS / 11-12 years / Intermediate / -50 kg
Method Submission 01:03 0–0
Marginal influence +13
Loss
November 23, 2025 Vasilije Pijunovic
ADCC Suisse Open Championship 2025 BOYS / 11-12 years / Intermediate / -50 kg
Method Submission 02:39 0–0
Marginal influence -33
October 2025 No new matches Change +3 Rating 1,212

Rating-period composition

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

September 2025 No new matches Change +9 Rating 1,209

Rating-period composition

Rating matches
2 0
Record
1–1 Previous month 1–1
Opponents
2 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
2.7
Official ranking percentile
-
Performance
-

2.7 weighted matches against 3 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,236
Repeated-opponent share
0.0%
Network connectivity
80.9%

Classification evidence

Why U14?

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

  • U14 1 event vote Selected outcome

Registrations and outcomes

Zurich BJJ SPRING OPEN GI and NO-GI 2026
U14 · Counts
BOYS GI / Junior / Grey / -50kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16
ADCC Suisse Open Championship 2025
Does not count
BOYS / 11-12 years / Intermediate / -50 kg
  • Competition age 12

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 2 competition events Selected outcome

Registrations and outcomes

Zurich BJJ SPRING OPEN GI and NO-GI 2026
≤ 50 kg · Counts as a competition event
BOYS GI / Junior / Grey / -50kg
  • Registered weight class: -50kg
  • Source competition limit: -50kg

1 match in the rating period

ADCC Suisse Open Championship 2025
≤ 50 kg · Counts as a competition event
BOYS / 11-12 years / Intermediate / -50 kg
  • Registered weight class: -50 kg
  • Source competition limit: -50 kg

2 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 1 match in the rating period Selected outcome

Registrations and outcomes

Zurich BJJ SPRING OPEN GI and NO-GI 2026
grey · Counts as a match
BOYS GI / Junior / Grey / -50kg
  • Source belt category: grey

1 match in the rating period