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Haroon Santos Kiwan

Kaizhang Team

W–L
2–2
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,258
Rating based on No-Gi matches in the past 12 months.
Current form
2–2
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

6
Indexed competition matches
Date Opponent Result Event Division
2026-08-15 Adam Kuno Hansen
Win
Grappling Industries HAMBURG No-Gi · No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -145 lbs
2026-08-15 Adam Kuno Hansen
Win
Grappling Industries HAMBURG No-Gi · No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -145 lbs
2026-04-11 Hamza Omari
Win
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi No-Gi · Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
2026-04-11 Elias Schülke
Win
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi No-Gi · Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
2025-11-22 Ismail Abdurrahman
Loss
Fennec BJJ Kids Cup Gi & NoGi No-Gi · Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -50 kg
2025-11-22 Ismail Abdurrahman
Loss
Fennec BJJ Kids Cup Gi & NoGi No-Gi · Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -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 +1 Rating 1,258

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 1,257

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 0 Rating 1,257

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 +1 Rating 1,257

Rating-period composition

Rating matches
4 0
Record
2–2 Previous month 2–2
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 2 new matches Change +125 Rating 1,256

Rating-period composition

Rating matches
4 +2
Record
2–2 Previous month 0–2
Opponents
3 +2
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
April 11, 2026 Hamza Omari
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Points 03:00 6–0
Marginal influence +44
Win
April 11, 2026 Elias Schülke
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
Method Submission 00:50 0–0
Marginal influence +25
March 2026 No new matches Change 0 Rating 1,131

Rating-period composition

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

February 2026 No new matches Change +12 Rating 1,131

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 0 Rating 1,119

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 +10 Rating 1,119

Rating-period composition

Rating matches
2 0
Record
0–2 Previous month 0–2
Opponents
1 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 2 new matches Change Starting point Rating 1,109

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
November 22, 2025 Ismail Abdurrahman
Fennec BJJ Kids Cup Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -50 kg
Method Points 04:00 0–11
Marginal influence -23
Loss
November 22, 2025 Ismail Abdurrahman
Fennec BJJ Kids Cup Gi & NoGi Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -50 kg
Method Submission 02:32 0–15
Marginal influence -23
Relevant matches
2.9
Official ranking percentile
-
Performance
-

2.9 weighted matches against 3 different opponents across 2 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,324
Repeated-opponent share
25.0%
Network connectivity
87.6%

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 2 event votes Selected outcome

Registrations and outcomes

Grappling Industries HAMBURG
U14 · Counts
No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -145 lbs
  • Competition age 13
  • Registered age: u16
  • Source category: u16
Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
U14 · Counts
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Competition age 13
  • Registered age: u12
  • Source category: u12
Fennec BJJ Kids Cup Gi & NoGi
Does not count
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -50 kg
  • Competition age 12
  • 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
  • ≤ 62 kg 1 competition event

Registrations and outcomes

Grappling Industries HAMBURG
Does not count
No Gi Kids / 14 - 15 years (Male) / Advanced (Yellow/Orange) / -145 lbs
  • Registered weight class: -145 lbs
  • Source competition limit: -145 lbs

No matches in the rating period · no valid weight evidence

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
≤ 62 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Registered weight class: -62 kg
  • Source competition limit: -62 kg

2 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
≤ 50 kg · Counts as a competition event
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -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 4 matches in the rating period Selected outcome

Registrations and outcomes

Fennec BJJ Kids Cup Vol. 9 Gi & NoGi
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 10-11 years / -62 kg
  • Source belt category: grey

2 matches in the rating period

Fennec BJJ Kids Cup Gi & NoGi
grey · Counts as a match
Boys No-Gi (under 16 y.o.) / Grey / 12-13 years / -50 kg
  • Source belt category: grey

2 matches in the rating period