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NL

Merlijn Frieser

COMBAT BROTHERS

W–L
2–0
Won and lost rating-eligible matches in the past 12 months.
Gi
-
Rating based on Gi matches in the past 12 months.
No-Gi
1,316
Rating based on No-Gi matches in the past 12 months.
Current form
2–0
Results from the ten most recent rating-eligible matches.
Opponents
2
Unique opponents faced in rating-eligible matches in the past 12 months.

Honours

Medals and placements

Gold
2
Silver
5
Bronze
7
Total medals
14
Events with results
14

Full career record

Wins
19
Losses
14
Matches
33
Win rate
57.6%

Ways of winning

Submission
13
Points
5
Decision
0
Disqualification
0

Personal records

Longest winning streak
5
Longest submission streak
3
Longest gold streak
1
Largest recorded points win
13–0

Recent recorded placements

  1. GrappleCity: Rotterdam Winter Open

    NL Event record 0–0

    • Place 5
    • Silver

  2. Versus Contender 5

    NL Event record 2–0

    • Boys NOGI 14-17 years / Professional / -80 kg

  3. BJJ Dutch Open NO-GI 2025

    NL Event record 0–0

    • Place 9

  4. Kaizen League Amsterdam Gi and No-Gi

    NL Event record 0–0

    • Bronze
    • Bronze

  5. BJJ Dutch Open 2024

    NL Event record 0–0

    • Place 17

12-month performance profile

How the results were achieved

Past 12 months
Current win streak
2
Unique opponents
2
Distinct events
1

Ways of winning

  • Submission 1 50%
  • Points 1 50%
  • Decision 0 0%
  • Other recorded result 0 0%

Gi versus No-Gi

Gi

Rating
-
Record
-
Win rate
-
Submission share
-

No-Gi

Rating
1316
Record
2–0
Win rate
100%
Submission share
50%

Win quality

Grouped by pre-match win probability. This provides context and does not award an extra rating bonus.

As underdog 0–0 Less than 35% expected win probability before the match.
Even match 0–0 Between 35% and 65% expected win probability before the match.
As favourite 0–0 More than 65% expected win probability before the match.

Development

Rating and development

The same published rating, supported by trend, opponent strength and evidence quality.

Current rating
1,316
Change over 90 days
-
Highest rating in 12 months
1,348
Performance versus expectation
-
Schedule strength
-
Average opponent rating
1,230
Weighted win rate
-
Expected win rate
-
Repeat-opponent share
0%
Effective evidence
1.7
Confidence
37/100

Opponents

Opposition and rivalries

The strongest recorded win, rematches and opponents faced repeatedly.

Rematches 5–8 5–8 across 13 rematches against 6 repeat opponents.

Rivals

Opponent Head-to-head record Matches
Jonah Oldenhave 0–2 2
Karl Saller 1–1 2

Recent tournaments

  1. GrappleCity: Rotterdam Winter Open

    November 9, 2025
    Gi / No-Gi 0–0

  3. BJJ Dutch Open NO-GI 2025

    June 14, 2025
    No-Gi 0–0

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 -15 Rating 1,316

Rating-period composition

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

July 2026 No new matches Change 0 Rating 1,331

Rating-period composition

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

June 2026 No new matches Change -2 Rating 1,331

Rating-period composition

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

May 2026 No new matches Change -1 Rating 1,333

Rating-period composition

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

April 2026 No new matches Change -1 Rating 1,334

Rating-period composition

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

March 2026 No new matches Change 0 Rating 1,335

Rating-period composition

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

February 2026 No new matches Change -5 Rating 1,335

Rating-period composition

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

January 2026 No new matches Change 0 Rating 1,340

Rating-period composition

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

December 2025 No new matches Change +1 Rating 1,340

Rating-period composition

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

November 2025 No new matches Change -9 Rating 1,339

Rating-period composition

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

October 2025 2 new matches Change Starting point Rating 1,348

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 12, 2025 Jonatan Colmans
Versus Contender 5 Boys NOGI 14-17 years / Professional / -80 kg
Method Points 04:00 0–0
Marginal influence +46
Win
October 12, 2025 Rabin Abdulrahman
Versus Contender 5 Boys NOGI 14-17 years / Professional / -80 kg
Method Submission 00:53 2–2
Marginal influence +46
Relevant matches
1.7
Official ranking percentile
-
Performance
-

1.7 weighted matches against 2 different opponents across 1 events

Weighted win rate
-
Expected win rate
-
Average opponent rating
1,230
Repeated-opponent share
0.0%
Network connectivity
87.6%

Classification evidence

Why ≤ 80 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

  • ≤ 80 kg 1 competition event Selected outcome

Registrations and outcomes

VERSUS Championship 35 - Adults Gi & NoGi
Does not count
Male No-Gi / Intermediate / -76

No matches in the rating period · no valid weight evidence

Grappling Industries AMSTERDAM
Does not count
No Gi Adult / Male / Intermediate (Blue) / Adult / -170 lbs
  • Registered weight class: -170 lbs
  • Source competition limit: -170 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries AMSTERDAM
Does not count
Gi Adult / Male / Blue / Adult / -170 lbs
  • Registered weight class: -170 lbs
  • Source competition limit: -170 lbs

No matches in the rating period · no valid weight evidence

NAGA Brussels Grappling Championship
Does not count
Men No-Gi / Intermediate / Light Weight (70 Kg to 74.9 Kg) / Adult
  • Registered weight class: Light Weight (70 Kg to 74.9 Kg)
  • Source competition limit: Light Weight (70 Kg to 74.9 Kg)

No matches in the rating period · no valid weight evidence

2026 AGF Netherlands Championships
Does not count
No Gi Juveniles - Adults / Male / Adult (18+) / Blue / Light (Up to 79.40 kg)
  • Registered weight class: Light (Up to 79.40 kg)
  • Source competition limit: Light (Up to 79.40 kg)

No matches in the rating period · no valid weight evidence

VERSUS Championship 34 - Gi & NoGi
Does not count
Male No-Gi / Intermediate / -76

No matches in the rating period · no valid weight evidence

Grappling Industries AMSTERDAM
Does not count
Gi Adult / Male / Blue / Adult / -170 lbs
  • Registered weight class: -170 lbs
  • Source competition limit: -170 lbs

No matches in the rating period · no valid weight evidence

Grappling Industries AMSTERDAM
Does not count
No Gi Adult / Male / Intermediate (Blue) / Adult / -170 lbs
  • Registered weight class: -170 lbs
  • Source competition limit: -170 lbs

No matches in the rating period · no valid weight evidence

VERSUS Championship 33 - NoGi & Adults only
Does not count
Male No-Gi / Intermediate / -76

No matches in the rating period · no valid weight evidence

Grappling Industries BRUSSELS
Does not count
No Gi Adult / Male / Beginner (White) / Adult / -170 lbs
  • Registered weight class: -170 lbs
  • Source competition limit: -170 lbs

No matches in the rating period · no valid weight evidence

GrappleCity: Rotterdam Winter Open
Does not count
Adult Gi / Adult / White / -79kg / Men
  • Registered weight class: -79kg
  • Source competition limit: -79kg

No matches in the rating period · no valid weight evidence

GrappleCity: Rotterdam Winter Open
Does not count
Adult Nogi / Beginner (White) / Adult / -79kg / Men
  • Registered weight class: -79kg
  • Source competition limit: -79kg

No matches in the rating period · no valid weight evidence

VERSUS Championship 32 Gi & NoGi
Does not count
Male No-Gi / Beginner / -76

No matches in the rating period · no valid weight evidence

Versus Contender 5
≤ 80 kg · Counts as a competition event
Boys NOGI 14-17 years / Professional / -80 kg
  • Registered weight class: -80 kg
  • Source competition limit: -80 kg

2 matches in the rating period

VERSUS Championship 31 (NoGi)
Does not count
Beginner -83

No matches in the rating period · no valid weight evidence

Gelders Open BJJ
Does not count
Male / White belts 6 + months experience / Adult & M2 / -82,3 kg (Middle)
  • Registered weight class: -82,3 kg (Middle)
  • Source competition limit: -82,3 kg (Middle)

No matches in the rating period · no valid weight evidence