159 hockey rinks
NHL- 24 rinks
About 2500. See the directory at http://www.hockey-community.com/rinks
There are two different sized rinks in pro hockey. One are the NHL rinks which are 85' x 200' and the Olympic and International rinks which are 98'5" x 196'10"
At ice rinks
those are face-off circles
Skating, ice hockey.
200' long by 85'wide. All NHL rinks are the same by rule. Olympic ice hockey rinks are 30 meters wide by 60 meters long (98.4 feet by 196.8 feet).
All across the world on different rinks.
How thick is the ice surface foe hockey games?