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Colin Aldana-Silbermayr

Groundfighter

W–L
0–2
Won and lost rating-eligible matches in the past 12 months.
Gi
1,120
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
0–4
Results from the ten most recent rating-eligible matches.
Opponents
1
Unique opponents faced in rating-eligible matches in the past 12 months.

Indexed career

Matches

6
Indexed competition matches
Date Opponent Result Event Division
2026-03-14 Nikolay Hellmann
Loss
Grappling Industries NUREMBERG No-Gi · No Gi Kids / Beginner (White) / 8 - 9 years / -55 lbs
2026-03-14 Alina Grauberger
Loss
Grappling Industries NUREMBERG No-Gi · No Gi Kids / Beginner (White) / 8 - 9 years / -55 lbs
2026-03-14 Alina Grauberger
Loss
Grappling Industries NUREMBERG Gi · Gi Kids / White / 8 - 9 years / -55 lbs
2026-03-14 Alina Grauberger
Loss
Grappling Industries NUREMBERG Gi · Gi Kids / White / 8 - 9 years / -55 lbs
2026-03-08 Theo Gassenbauer
Loss
Groundfighter Kids Open 2026 Gi · All Kids GI / -25 kg / Beginner
2026-03-08 Halid Mukayev
Loss
Groundfighter Kids Open 2026 Gi · All Kids GI / -25 kg / Beginner

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 1,120

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 1,120

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 1,120

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 1,120

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 1,120

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 2 new matches Change Starting point Rating 1,120

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
March 14, 2026 Alina Grauberger
Grappling Industries NUREMBERG Gi Kids / White / 8 - 9 years / -55 lbs
Method Points 03:00 0–8
Marginal influence -32
Loss
March 14, 2026 Alina Grauberger
Grappling Industries NUREMBERG Gi Kids / White / 8 - 9 years / -55 lbs
Method Points 03:00 0–17
Marginal influence -32
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
1,290
Repeated-opponent share
50.0%
Network connectivity
87.6%

Classification evidence

Why U12?

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

  • U12 2 event votes Selected outcome

Registrations and outcomes

Grappling Industries NUREMBERG
U12 · Counts
No Gi Kids / Beginner (White) / 8 - 9 years / -55 lbs
  • Competition age 10
  • Registered age: u10
  • Source category: u10
Gi Kids / White / 8 - 9 years / -55 lbs
  • Competition age 10
  • Registered age: u10
  • Source category: u10
Groundfighter Kids Open 2026
U12 · Counts
All Kids GI / -25 kg / Beginner
  • Competition age 10
  • Registered age: u12
  • Source category: u12

Classification evidence

Why ≤ 25 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

  • ≤ 25 kg 2 competition events Selected outcome

Registrations and outcomes

Grappling Industries NUREMBERG
Does not count
No Gi Kids / Beginner (White) / 8 - 9 years / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries NUREMBERG
≤ 25 kg · Counts as a competition event
Gi Kids / White / 8 - 9 years / -55 lbs
  • Registered weight class: -55 lbs
  • Source competition limit: -55 lbs

2 matches in the rating period

Groundfighter Kids Open 2026
≤ 25 kg · Counts as a competition event
All Kids GI / -25 kg / Beginner
  • Registered weight class: -25 kg
  • Source competition limit: -25 kg

2 matches in the rating period

Classification evidence

Why White?

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

  • white 2 matches in the rating period Selected outcome

Registrations and outcomes

Grappling Industries NUREMBERG
white · Counts as a match
Gi Kids / White / 8 - 9 years / -55 lbs
  • Source belt category: white

2 matches in the rating period