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Stefan Zimmermann

Stallion Gym

W–L
0–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,129
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
0–2
Results from the ten most recent rating-eligible matches.
Opponents
1
Unique opponents faced in rating-eligible matches in the past 12 months.

Scheduled

Tournament history

Events

1
Events
Date Event Result Format Division
Grappling Battle Heidelberg Germany · Gi · 15 yo · yellow · ≥73 kg 0–2 W–L: Win / Loss Gi Boys Gi / Yellow / Teen III (15yrs) / +73,00 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 1,129

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.

July 2026 No new matches Change 0 Rating 1,129

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.

June 2026 No new matches Change 0 Rating 1,129

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.

May 2026 No new matches Change 0 Rating 1,129

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.

April 2026 No new matches Change 0 Rating 1,129

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.

March 2026 No new matches Change 0 Rating 1,129

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 0 Rating 1,129

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 1,129

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 2 new matches Change Starting point Rating 1,129

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
December 13, 2025 Alten Redzhebov
Grappling Battle Heidelberg Boys Gi / Yellow / Teen III (15yrs) / +73,00 kg
Method Decision 03:00 0–0
Marginal influence -27
Loss
December 13, 2025 Alten Redzhebov
Grappling Battle Heidelberg Boys Gi / Yellow / Teen III (15yrs) / +73,00 kg
Method Submission 01:42 0–2
Marginal influence -27
Relevant matches
1.2
Official ranking percentile
-
Performance
-

1.2 weighted matches against 1 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,291
Repeated-opponent share
50.0%
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

Grappling Industries NUREMBERG
U16 · Counts
Gi Kids / Grey / 12 - 13 years (Male) / -210 lbs x
  • Competition age 14
  • Registered age: u14
  • Source category: u14
Grappling Battle Heidelberg
Does not count
Boys Gi / Yellow / Teen III (15yrs) / +73,00 kg
  • Competition age 13
  • Registered age: u16
  • Source category: u16

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 2 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Battle Heidelberg
yellow · Counts as a match
Boys Gi / Yellow / Teen III (15yrs) / +73,00 kg
  • Source belt category: yellow

2 matches in the rating period