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Olympic curling has taken to the ice, but if you’re like most Americans, this writer included, the game is a bit baffling. Here’s a quick, stripped-down primer on everyone’s favorite icy alternative to shuffleboard. It doesn’t cover anywhere near all of the game’s nuances, but it should give you enough info that you can enjoy watching an end or two.
Good question. First, let’s get a bit of the jargon down. The playing surface in curling is called “the sheet.” Sheet dimensions can vary, but they’re usually around 150 feet long by about 15 feet wide. The sheet is covered with tiny droplets of water that become ice and cause the stones to “curl,” or deviate from a straight path. These water droplets are known as “pebble.”
At each end there’s a target that looks like a big bullseye. These targets are known as “the houses.” The center of the house is known as the “button.” Basically, the object of the game is to get your stones closer to the button than the other team gets theirs.
Remember how we talked about the pebble of ice droplets that the rock has to travel across? When the stone touches the pebble, there’s friction, which can slow down the stone and makes it curl away from its straight path to the house.
Obviously, that friction is not always a good thing, but sweeping helps combat the problem. The sweeping motion raises the temperature of the ice by a degree or two, which diminishes the friction between the pebble and the stone and keeps the stone moving in a straight line.
Each curling team has four members: a lead, a second, a vice-skip (or third), and a skip. Each “end” (curling’s equivalent of a baseball inning) involves both teams shooting (or “delivering”) eight stones at the house, with players delivering two stones apiece.
When the lead, second, and vice are delivering their stones, the skip stands at the opposite end of the sheet (near the house) and uses his broom to give his teammates a target for their deliveries. Once the stone has been delivered and is a “running stone” (that is, one that’s still sliding), the skip then yells to the sweepers to let them know when to sweep and how hard. When the skip shoots the last two stones of a team’s end, the vice takes over calling the shots.
In each end, both teams send eight stones down the sheet. Once all 16 stones have been delivered, the team with the stone that’s closest to the button (center of the house) effectively “wins” the end. Only this team will earn any points for the end. It gets a point for each of its stones that are in the house and closer to the button than the other team’s closest stone. Since the team that won the end always has at least one stone that’s closer to the button than their opponent, the team always scores at least one point, and could score up to eight points.
If neither team manages to keep a stone in the house during an end, it’s known as a “blank end,” and no points are scored. Olympic curling matches last for 10 ends unless there is a tie, in which case it goes to extra-ends, curling’s equivalent of overtime.
As you might have guessed from reading about the scoring system, throwing the last stone of an end is a huge advantage. If you’ve got the last stone, you can always try to knock the other team’s best stone away from the button. If a team holds the last stone for an end, it “has the hammer,” and should probably be able to score some points. If the team without the hammer manages to somehow stymie their opponent and score points, it’s called a “stolen end.” Whichever team fails to score points in an end gets the hammer for the next end.
Yes, there’s all sorts of strategy in curling. Let’s say your team doesn’t have the hammer. You’re at a huge disadvantage when it comes to scoring points, so you might opt to play defensively. To do that, you might just deliver a number of “guards,” or rocks that will sit in front of the house and provide an obstacle for the other team’s stones. Alternatively, guards can be used to defend your stones that are already in the house from being knocked out by the other team’s “takeout” shots.
The third major type of curling shot is the “draw,” a shot that’s meant to avoid other stones and come to rest in the house. Generally, a draw is used with the hope of scoring points, a guard is thrown to protect the house or a stone that’s already been thrown, and a takeout is used defensively.