Ice Reading for Club Curlers

Read the shot before explaining the miss

Ice reading means learning how stones travel on the paths you are actually using. The practical questions are: How much weight does this shot need, and where should we aim?

One surprising finish is a clue. Several comparable shots give you a stronger working read. A different delivery, release, stone or sweeping plan can change the result without proving the ice changed.

• Name the sheet, direction of play, brush position and intended path.
• Record the turn, called and observed weight, player, stone number and handle colour.
• Notice release, rotation, sweeping and where the stone actually stops.
• Keep line and length separate: the correct route can still finish too deep or too short.

Keep the path, turn and weight attached to the note

Viewed from above, clockwise rotation normally curls right and counterclockwise normally curls left when looking in the direction of travel. In-turn and out-turn depend on the delivering hand, so clockwise and counterclockwise make shared records easier to read. [1,2]

Treat the other turn and return direction as separate observations. A draw and a firm takeout are different tests of a path. Do not copy the brush position from one weight straight onto another. Release and rotation also need to be considered. [3,4]

• Useful: 'Clockwise draws through that lane finished farther right today.'
• Too broad: 'This whole sheet always curls that much.'
• Watch when the bend becomes noticeable and what happens near the finish.

Check the other explanations

Watch both teams from a permitted position without distracting anyone or slowing play. Note aim, weight and outcome. Curling Canada's skipping advice makes this an ongoing team habit. [5]

Pebble condition, traffic and frost can affect the way a path plays. Changes need not be the same across the sheet. Separate what happened from what you think caused it. [3,6]

• Narrow immediately: check the slide and release line.
• Too deep: check delivered weight, path and sweeping.
• Early bend or sideways finish: compare release, rotation, weight and sweeping.
• Abrupt change: record an unusual event or possible pick; avoid diagnosing the cause from the finish.
• Several comparable shots change together: cautiously update the path read.
• One numbered stone repeatedly differs: start a separate stone comparison.

Practice with one question

This original HouseCall routine works in a booked practice session. You do not have to map the whole sheet at once.

Three comparable attempts is a manageable starting plan, not a rule that proves a pattern. Record missed deliveries too, but mark them unsuitable for an ice-only comparison.

• Choose one question, one familiar reference stone and one path.
• Keep player, direction, turn, weight, release, rotation and sweeping as similar as practical. [4]
• Record actual finishes and delivery exceptions.
• Repeat the useful comparisons, then change one question at a time.
• Revisit the reference path later and tell the team what remains uncertain.

Use the watch as one clue

Back-line-to-near-hog timing measures part of the delivery. A later push, pull-back or release change can affect the result. Hog-to-hog timing measures travel between the two hog lines; pair it with the finish, path and sweeping when comparing draw ice. [6]

Always write the interval name. Agree on the same stone edge and line edge, use a consistent timer when possible and allow for reaction error. There is no universal split for every player, stone, path and rink. Keep watching and calling weight.

A fictional example of a useful conclusion

FICTIONAL OBSERVATIONS: On one clockwise, unswept draw path, two comparable shots with red 2 finish near the tee. Another shot runs long, but the player reports adding weight, so the team excludes it from the ice comparison. Later, two apparently similar attempts both finish behind the tee.

Working read: 'Our later draws on this path carried farther. It may be keener, but we have not proved why. Try a small weight adjustment and check the result.'

That does not establish that red 2 is a fast stone or that the whole sheet changed. The downloadable guide includes the filled-in example and a blank-house practice record.

Make the read useful to your teammates

Before the shot, agree on target, turn, weight and acceptable miss. During the shot, sweepers report expected finishing depth, the person in the house calls line, and the thrower reports a noticeable release difference. Keep updating as the stone travels. [3]

Sweeping changes travel and trajectory. Learn technique with a qualified instructor and follow the applicable rules. World Curling's 2026 policy prohibits techniques intended to slow a stone. [7]

• 'Top four weight. Updating: tee-line now.'
• 'It was inside the brush at release.'
• 'Same path as the last draw, other stone.'
• 'That one was swept late, so it is not a clean comparison.'

Take it to practice

Building a team · Rock matching

Download the printable guide for worked examples and reusable worksheets. Clubs may download, print and share it for noncommercial educational use. Keep the credit to Mary Deuhs and HouseCall. Not for resale.

Plan a practice · Sweeping and communication · Learning path