Sweeping in curling is not just about clearing the path for the rock; it's a nuanced technique that can significantly influence the game's outcome. Here's an exploration of the advanced sweeping techniques that have emerged in recent years.
The Purpose of Curling Sweeping
Sweeping in curling serves multiple purposes:
Distance Control
Sweeping can make the rock travel farther. Good sweepers can add an additional 4 - 8 feet to a rock's distance.
Direction Control
Sweeping can make the rock travel straighter. Moreover, directional sweeping, in certain scenarios, can make the rock curl more.
Debris Clearance
Sweeping clears small debris from the rock's path. Even minute debris like a hair or fabric from clothing can alter the rock's course.
Sweeping Judgement and Communication
Effective communication between the sweepers and the skip is paramount. While sweepers primarily judge the weight of the rock, the skip focuses on the line. The skip's judgment is based on the rock's delivery and anticipated curl. Before the rock is thrown, sweepers should be clear on the exact shot and weight that's been called. As the rock progresses, any deviations in weight should be communicated by the sweepers to the skip, especially by the midpoint of the sheet.
Teams often use systems to communicate draw weight and rock position:
One such system is the 1-11 system (a numerical scale where each number represents a specific weight or distance the rock travels, with sweepers relaying these numbers promptly, especially by the hog line).
Another is the house position system (a method that uses the house's zones, like "top four" or "back twelve", to indicate the desired rock placement, either verbally or visually).
It's essential to note that the weights being communicated are those influenced by sweeping, and understanding the difference between "swept" and "unswept" numbers is crucial. Effective communication ensures that both the skip and the sweepers are aligned in their strategies, leading to more accurate shots.
Mechanics of Directional Sweeping
Directional sweeping allows advanced sweepers to change the course of the rock.
For straightening, sweepers take a position on the inside of the curl (e.g., right side on an in-turn) with their body at a 45-degree angle to the line of delivery. They drive the broom away from their body, starting at a point on the inside of the running surface. This creates scratch grooves in the ice up to 45 degrees to the line or path.
To add more curl, sweepers position themselves on the outside of the curl and drive the broom away from their body, creating scratch grooves near 45 degrees to the line.
Conclusion for Advanced Curling Sweeping Techniques
Sweeping in curling is a blend of art and science. The advancements in past years have added depth and strategy to the game, making it even more intriguing for players and spectators alike.