Katja Koroleva
⚽United States referee · 4 competitions · FIFA International
Katja Koroleva is a United States football referee. They have officiated as referee, fourth official and VAR. Credentials: FIFA badge holder. In total they have 51 tracked match appearances across 4 competitions, broken down as 18× Referee, 13× 4th Official, 20× VAR. Most-worked competitions include Major League Soccer, USL Championship, National Women's Soccer League and USL League One. This profile is built from official match-appointment data.
Top Competitions
Season-by-Season Activity
Discipline
Per-match averages as referee, over 3 matches with card data.
Record with teams
Results of teams in matches Katja Koroleva refereed. Descriptive only.
| Team | Mt | W-D-L | Win% |
|---|---|---|---|
| Sporting KC | 2 | 0-0-2 | 0% |
Career Milestones
Career-firsts tracked in our database.
Match Activity
51 matches · 10 yearsTop 34% among United States officials
Peer Benchmark
Median in United States: 17 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
Other officials from United States
Career Events
Career events (UEFA courses, awards) will appear here when available.
Season Reports
Rarely Works With
Active officials in Major League Soccer they have shared fewest matches with.
- 1Jorge GonzalezVAR · 422 in leagueNever
- 2Corey ParkerAssistant Referee 1 · 384 in leagueNever
- 3Corey RockwellAssistant Referee 1 · 381 in leagueNever
- 4Ismail ElfathReferee · 373 in leagueNever
- 5Sorin StoicaVAR · 366 in leagueNever
- 6Jonathan JohnsonAVAR · 344 in leagueNever
- 7Silviu PetrescuReferee · 337 in leagueNever
- 8Ian AndersonAssistant Referee 1 · 327 in leagueNever
Explore the full officiating network — partnerships, observers, clubs and venues — on the network analysis page.
Top Destinations
- 1🇺🇸United States50×
- 2🇦🇲Armenia1×
🌍 Geographic Reach
Countries where officiated
Officiated in 2 countries across 1 continent
Venues Visited(38)
Stadiums Katja Koroleva has officiated at. Filter by competition or season to focus the map.
38 venues · 51 matches
Mercedes-Benz StadiumAtlanta, United States3 matches
Providence ParkPortland3 matches
TCF Bank StadiumMinneapolis3 matches
BC PlaceVancouver, Canada2 matches
CPKC Stadium2 matches
Gillette StadiumFoxborough, United States2 matches
Lumen FieldSeattle, United States2 matches
Providence ParkUnited States2 matches
Shell Energy StadiumHouston2 matches
Toyota StadiumFrisco2 matches
America First FieldSandy1 match
America First FieldSandy, United States1 match
Bank of America StadiumCharlotte1 match
BMO StadiumUnited States1 match
Childrens Mercy ParkKansas City1 match
City StadiumAbovyan, Armenia1 match
Dick’s Sporting Goods ParkCommerce City, United States1 match
GEODIS ParkNashville1 match
Lower.com FieldColumbus1 match
Lower.com FieldColumbus1 match
Nissan StadiumNashville, Nashville1 match
PayPal ParkUnited States1 match
PayPal ParkSan Jose1 match
Q2 StadiumAustin1 match
Snapdragon StadiumSan Diego1 match
Snapdragon StadiumUnited States1 match
Sporting ParkKansas City1 match
Sporting ParkKansas City, United States1 match
Sports Illustrated StadiumHarrison, United States1 match
Stade SaputoMontreal1 match
Subaru ParkChester1 match
Travel map
Venues in chronological order across tracked matches.
Frequently Asked Questions
What is Katja Koroleva's primary role?▾
Katja Koroleva is a United States football referee, and has also worked as fourth official and VAR.
How many matches has Katja Koroleva officiated?▾
Katja Koroleva has 51 tracked match appearances across 4 competitions (18× Referee, 13× 4th Official, 20× VAR).
Which competitions does Katja Koroleva work in?▾
Katja Koroleva has most often officiated in Major League Soccer, USL Championship, National Women's Soccer League and USL League One.
Is Katja Koroleva a FIFA referee?▾
Yes — Katja Koroleva is a FIFA badge holder.
Which teams has Katja Koroleva officiated most?▾
Among domestic clubs, Katja Koroleva has most frequently officiated matches involving Sporting KC, CF Montréal and Portland Timbers.
Which cities has Katja Koroleva officiated in most?▾
Katja Koroleva has officiated most often in Portland, Kansas City, Atlanta and Minneapolis, with Providence Park the most-visited stadium.
How many cards does Katja Koroleva give per game?▾
As referee, Katja Koroleva averages 5.00 yellow cards and 0.33 red cards per match, over 3 matches with card data, and has awarded 1 penalty.
Organizer reviews
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<a href="https://www.referee.observer/referee/usa/katja-koroleva" title="Katja Koroleva — referee statistics on Referee.Observer">Katja Koroleva — referee profile & stats on Referee.Observer</a>Referee.Observer is built by a community of referees from open, public data sources — so some details may be out of date or wrong.