Lasse Koslowski
Lasse Koslowski
🚩Germany assistant referee · 8 competitions
Lasse Koslowski (Lasse Koslowski) is a Germany football assistant referee. They have officiated as assistant referee and fourth official. In total they have 43 tracked match appearances across 8 competitions, broken down as 42× AR, 1× 4th Official. Most-worked competitions include Bundesliga, UEFA Champions League, UEFA Europa League, UEFA Europa Conference League, FIFA WC European Qualifiers and UEFA Europa League Play-Off Round (First Legs). This profile is built from official match-appointment data.
Top Competitions
Season-by-Season Activity
Career Milestones
Career-firsts tracked in our database.
Match Activity
36 matches · 5 yearsTop 15% among Germany officials
Peer Benchmark
Median in Germany: 15 matches · 2 seasons
Recent Matches
Most-Officiated Teams
Least-Officiated Teams
Clubs in their current competition, ordered by how seldom this official has worked their matches.
Each number = matches officiated involving that club · 0× = never officiated them
Frequently Works With
Rarely Works With
Active officials in Bundesliga they have shared fewest matches with.
- 1Rafael FoltynAssistant Referee 2 · 20 in leagueNever
- 2Dominik SchaalAssistant Referee 1 · 19 in leagueNever
- 3Jan SeidelAssistant Referee 1 · 19 in leagueNever
- 4Nikolai KimmeyerAssistant Referee 1 · 18 in leagueNever
- 5Marco AchmüllerAssistant Referee 2 · 18 in leagueNever
- 6Felix ZwayerReferee · 18 in leagueNever
- 7Christof GünschAssistant Referee 1 · 18 in leagueNever
- 8Thomas SteinAssistant Referee 1 · 18 in leagueNever
Top Destinations
- 1🇩🇪Germany2×
- 2🇫🇮Finland1×
- 3🇹🇷Türkiye1×
🌍 Geographic Reach
Countries where officiated
Officiated in 3 countries across 1 continent
Venues Visited(25)
Stadiums Lasse Koslowski has officiated at. Filter by competition or season to focus the map.
25 venues · 30 matches
Allianz ArenaMunich, Germany2 matches
BayArenaBayArena2 matches
MHPArenaMHPArena2 matches
Millerntor-StadionMillerntor-Stadion2 matches
Tüpraş StadyumuIstanbul, Türkiye2 matches
AlkmaarAlkmaar1 match
BialystokBialystok1 match
BirminghamBirmingham1 match
EindhovenEindhoven1 match
GhentGhent1 match
GlasgowGlasgow1 match
HelsinkiHelsinki, Finland1 match
IstanbulIstanbul1 match
KopavogurKopavogur1 match
LeipzigLeipzig1 match
LjubljanaLjubljana1 match
MadridMadrid1 match
Mewa ArenaMewa Arena1 match
PreZero ArenaPreZero Arena1 match
RuzomberokRuzomberok1 match
S tadion města PlzněS tadion mesta Plzne1 match
Voith-ArenaVoith-Arena1 match
VolksparkstadionVolksparkstadion1 match
Volkswagen ArenaVolkswagen Arena1 match
WWK ArenaWWK Arena1 match
Travel map
Venues in chronological order across tracked matches.
Other officials from Germany
Career Events
Career events (UEFA courses, awards) will appear here when available.
Season Reports
Frequently Asked Questions
What is Lasse Koslowski's primary role?▾
Lasse Koslowski is a Germany football assistant referee, and has also worked as fourth official.
How many matches has Lasse Koslowski officiated?▾
Lasse Koslowski has 43 tracked match appearances across 8 competitions (42× AR, 1× 4th Official).
Which competitions does Lasse Koslowski work in?▾
Lasse Koslowski has most often officiated in Bundesliga, UEFA Champions League, UEFA Europa League, UEFA Europa Conference League, FIFA WC European Qualifiers and UEFA Europa League Play-Off Round (First Legs).
Is Lasse Koslowski a FIFA referee?▾
Lasse Koslowski is not currently recorded as a FIFA badge holder in our data.
Organizer reviews
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