Size matters. Especially when it’s 15 feet. If an Olympic hockey coach coming from North America tried to imitate Gene Hackman in “Hoosiers” and took a tape measure to the rinks in South Korea, it wouldn’t add up. International-sized ice is 15 feet wider than rinks used in the NHL, American Hockey League and NCAA —100 feet compared to 85 — and that’s more than enough to change everything.

