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Calling weight by number

Weight is the one thing a curler actually chooses, and it is called as a number. The numbers are not a difficulty scale — they are places on the ice, and once you see that, the whole system reads itself.

Last updated 2026-08-16

Weight is a distance, not an effort#

The single most useful thing to understand about curling is that "weight" does not mean how hard you push. It means where the stone would stop. A curler asking for more weight is asking for the stone to finish further down the sheet, and the amount of muscle involved is nobody's business.

That framing is what makes weight callable at all. If it were an effort you could only learn it by feel, and you could never hand it to a teammate. As a distance it has a number, and the number can be spoken across fifty metres of ice.

The numbered scale#

The scale runs from 1 to 10, and every number is a place. The house does most of the work of dividing it up: the rings put lines on the ice two feet apart, so 4 is the front edge of the house, 7 is the button, 10 is the back line, and 5, 6, 8 and 9 land on the eight- and four-foot lines either side of the tee.

The numbered weight scale laid on the ice: 1, 2 and 3 in the guard zone at three-foot steps, then 4 to 10 across the house at two-foot steps, from the front edge of the rings to the back line.Hog lineTee lineBack line123456789101, 2 and 3 — three feet apart4 to 10 — two feet apart
Every called number, marked where the stone comes to rest. Point at one to see it in the table below.

Point at a row to find it on the ice.

CallStops atFrom the hackHog to hogWhat it is for
1A deep guard111 ft16.48 sA deep guard, well out in front. Hard to draw around, easy to leave useless.
2A guard114 ft15.58 sThe standard guard. Far enough out to hide behind, close enough to matter.
3A tight guard117 ft14.87 sA tight guard, right off the rings. Protects the front of the house without blocking your own draw.
4The top of the house120 ft14.27 sThe front of the rings. Counts, but only just.
5The top of the eight-foot122 ft13.92 sTop of the eight. The workhorse draw when something has to sit in front.
6The top of the four-foot124 ft13.60 sTop of the four. Close to the middle and still coverable.
7The button126 ft13.31 sThe button. The default answer to "where do you want it?".
8The back of the four-foot128 ft13.04 sBack four. Behind the tee line, close to the middle, awkward to remove.
9The back of the eight-foot130 ft12.78 sBack eight. Deep and safe from anything drawn in front of it.
10The back line132 ft12.55 sThe back line. The last position that scores, and a foot from being gone.

Once you have the symmetry, nothing needs memorising. The button is 7. Every step of one is two feet. So a 9 is four feet past the button — the back of the eight-foot — and you worked that out rather than recalled it.

Why the guard numbers step three feet#

In front of the rings there is nothing to measure against: fifteen feet of blank ice between the hog line and the front of the house. Two-foot steps would need eight numbers to cross it and none of them would land on anything you could see. So the guard zone gets three numbers at three-foot steps — 3 is a tight guard just off the rings, 2 is a guard, and 1 is a deep guard close to the hog line.

The numbers in between#

Nobody writes 6.4 on a chart, but it is a shot a curler can genuinely ask for — a foot in front of the button is a real place and a real instruction. The scale is continuous rather than ten fixed calls, which is why CurlTi.me puts a fine control between the number buttons rather than making you pick one of ten.

The other way: a stopwatch#

The second way to call weight is a time. Somebody at the delivering end starts a watch as the stone crosses the near hog line and stops it as it crosses the far one — 72 feet of travel — and reads off a number in seconds. That is the hog-to-hog split, and it is the language teams use to talk about the ice.

It runs backwards from the numbered scale, which catches everybody out once: a bigger time is a lighter stone. A 13.3 is a draw to the button; a 12.5 will run to the back line; a 16.5 barely reaches the guard zone.

The other stopwatch convention

Some teams time from the back line to the near hog line instead — about 3.75 seconds at draw weight. That measures something different: the stone is still being carried during that stretch, so it times the delivery rather than the slide. Both conventions are in use and both are right; they just answer different questions.

Why the same number takes a different time#

Here is the part that turns the stopwatch from a gadget into an instrument. The number 7 always means the button. The time a 7 takes does not, because it depends entirely on how fast the ice is.

SheetFrictionIts own draw to the buttonA stone thrown at the calibration sheet's button weight
Club×1.1012.72 sstops at 117.5 ft — 8.5 ft short of it
Normal×1.0013.31 sstops on the button
Championship×0.8514.37 sstops at 142.4 ft — 16.4 ft past it

Throw the identical stone on club ice and on championship ice and it finishes nearly twenty-five feet apart. That is the whole reason teams stand at the far end with stopwatches during the first end: they are not measuring the thrower, they are measuring the sheet. Once you know a button draw is taking 13.9 seconds on this ice tonight, you know what to call for the rest of the game.

Ice speed, and what to expect from a sheet goes into how much a sheet varies, how it changes during a game, and how to read one from a single stone.

Above the scale: the takeout weights#

The numbers stop at 10, because the house stops at the back line and there is nothing left to name. Everything harder than that is a takeout, and takeouts are defined by the fact that they would keep going. So they get names instead, and the names are places too — just places past the end of the house:

The takeout weights, marked where a stone thrown at them would come to rest on an open sheet. Back line weight stops in the house, hack weight at the far hack and board weight at the back boards; control, normal and peel weight would carry the stone off the end of the ice entirely.Tee lineBack lineback line weighthack weightboard weightthe far hackthe boards — the ice ends herecontrol, normal and peelall end up out here
Where each named weight would put a stone on an empty sheet. Hack weight stops at the far hack; board weight reaches the back boards; the three hardest weights would leave the ice altogether.
WeightWould stop atHog to hogWhat it is for
Back Line132 ft12.55 sThe lightest weight that reliably removes a stone. Yours is likely to stay in the house.
Hack138 ft11.93 sA soft takeout. Enough to clear, gentle enough to control the roll.
Board144 ft11.40 sThe everyday hit. Removes the target and leaves your stone somewhere predictable.
Control175 ft9.54 sThe standard modern takeout. Still curls, so it can be thrown around a guard.
Normal198 ft8.65 sA firm hit. The target goes; so, usually, does yours.
Peel274 ft6.91 sMaximum weight. Travels almost straight, which is why it is used on guards.

Those names are not arbitrary and they are not modern inventions — why the weights are called what they are traces each one back to the thing on the ice it is named after.

Which weight to throw#

Roughly, and with a great deal of argument available about the edges:

Heavier is not safer. A harder throw curls less, which means it is less forgiving of a missed line, and it arrives with enough energy that a thin contact sends both stones somewhere nobody intended. There is a reason control weight is called that.

Calling weight on CurlTi.me#

The game takes weight the same two ways the ice does: pick a number from 1 to 10 and nudge the fine control between them, or set a stopwatch time directly. Switching between the two carries the value across rather than resetting it, because they are the same axis expressed differently.

Every split time on this page comes out of the game's own physics rather than from a chart somebody typed in, which is why they are given to two decimal places: they are computed, not remembered. The friction law underneath is µ(v) = 0.00662 + 0.00231/√v — friction that rises as the stone slows, which is the correction that makes real curling timings reproducible at all.