The Sochi Olympics have me curious about some of the older sports
I watched,  just because, and newer sports I don’t understand.
 Too much information and so little time to learn about the sport of curling.
I have watched curling and thought I understood it, but realized that what ever
information I thought I knew was not enough to enjoy watching the Sochi 
I decided to make myself some notes from various sources on www. mostly 
wikipedia and HowStuffWorks.  
I decided I would post it in case there was someone else that was curious about
the sport of curling.  
This is how I make my notes to myself…in color, various type size and
with no rhyme or reason…just impulse as I type. 
Curling continued:  My notes from wikipedia, 
More complete information can be obtained there if you are 
better informed or understand the game better than I do at this point.
I got too confused trying to read more than one source at this point.
I’m into the part of curling that is most complex to me…
actually playing and scoring.
I also saw on the coverage in Sochi, part of the “fun” of the teams is the
most outrageous uniforms…bright colors and modern abstract art patterns.

Curling sheet

The playing surface or curling sheet is defined by the World Curling Federation Rules of Curling. .

The sheet is an area of ice, carefully prepared to be as flat and level as possible, 146 to 150 feet  in length.

by 14.5 to 16.5 feet in width.  Multiple games may be played simultaneously.

A target, the house consists of three concentric rings formed by painting or laying colored vinyl sheets

under the ice and are usually distinguished by colour. 

These rings are defined by their diameters as the four-foot, eight-foot and 12-foot rings. 

The rings are merely a visual aid for aiming and judging which stone is closer to the centre; 

they do not affect scoring but a stone must at least touch the outer ring or it does not score.


Each house is centered on the intersection of the center line, drawn lengthwise down the center of the sheet and one of the tee lines, drawn 16 feet (4.9 m) from, and parallel to, each backboard. 

These lines divide the houses into quarters.

The centre of each house, at the intersection of the centre line and the tee line, is known as the button


Two hog lines, are drawn 37 feet (11 m) from, and parallel to, each backboard.

The hacks are fixed 12 feet behind each button; a hack gives the thrower something to push against when making the throw. On indoor rinks, there are usually two fixed hacks, rubber-lined holes, one on each side of the centre line, with the inside edge no more than 3 inches (76 mm) from the centre line and the front edge on the hack line. A single moveable hack may also be used.


A curling sheet, with dimensions – CL: Centreline • HOL: Hogline • TL: Teeline • BL: Backline • HA: Hackline with Hacks • FGZ: Free Guard Zone


The ice may be natural but is usually frozen by a refrigeration plant.

 Most curling clubs have an ice maker whose main job is to care for the ice. It is common for each sheet of ice to have multiple sensors embedded in order to monitor surface temperature.

The delivery is the 

process of sliding a stone down the sheet.

The skip, or the captain of the team, will usually determine the various tactics to be used such as

taking-out, blocking or tapping another stone.

  • The weight of the stone is its velocity, which depends on the leg drive of the delivery rather than the arm.
  • The turn, handle, or curl is the rotation of the stone, which gives it a curved trajectory.
  • The line is the direction of the throw ignoring the effect of the turn.
This has gotten already too complex for me, but with my notes on the computer screen, maybe
I’ll understand.
The thrower throws from the hack. 
Another player, usually the skip, is stationed behind the button 
to determine the tactics, weightturn and line
and the other two may sweep in front of the stone to influence the trajectory.
The stone must be released before its front edge crosses the near hog line 
and it must clear the far hog line or else be removed from play (hogged).
The “eye on the hog” sensor in the stone will indicate whether the stone has been legally thrown or not.
The lights on the stone handle will either light up green, indicating that the stone has been legally thrown, or red.
The last rock in an end is called the “hammer.”

The winner is the team having the highest number of accumulated points at the completion of ten ends


Points are scored at the conclusion of each of these ends as follows

  • when each team has thrown its eight stones, 
  • the team with the stone closest to the button wins that end; 
  • the winning team is then awarded one point for each of its own 

                       stones lying closer to the button than the opponent’s  

  • Only stones that are in the house are considered in the scoring. 
  • A stone is in the house if it lies within the 12-foot (3.7 m) zone 
  • or any portion of its edge lies over the edge of the ring. 

Since the bottom of the stone is rounded

a stone just barely in the house will not have any actual contact with the ring, 

which will pass under the rounded edge of the stone, but it still counts. 

This type of stone is known as a biter.

Curling is a game of strategy, tactics and skill. 
And this is where i have decided to stop my lesson for myself for this Olympics.
Catch you again sometime as I tried to keep up with the world
around me.
Getting old isn’t for sissy’s or for those who stop wanting to know
about the world around them.  Curiosity and learning is ageless.
I have typed my notes from wikipedia on this section.  
I have tried to be accurate in my typing…
refer to wikipedia.com/curling for added details and for the reference sources.