Officials
Marcin Grochal
International hockey umpire appointed to Olympic and World Cup competition.
Life and work
The story behind the role.
International hockey umpire appointed to Olympic and World Cup competition.
Encyclopaedic excerpts from Marcin Grochal; shortened for length and available under CC BY-SA 4.0.
Achievements and distinctions
- 01
International hockey umpire appointed to Olympic and World Cup competition.
Career and education
Field of contribution
Field hockey · Officials
iintroo coverage
News and developments
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