Is a StrackaLine Green Reading Book Legal for Tournament Play
How does USGA Rule 4.3 affect StrackaLine?
StrackaLine currently only offers the USGA legal version which is in compliance with the rule. The green scale is limited to a 3/8 inch to 5 yards (1:480). StrackaLine previously offered a Practice version which does not meet this requirement.
When do the limitations on using green-reading materials apply?
The Interpretation limits the materials that a player may use during a round to help with reading his or her line of play on the putting green so that a player’s ability to read a green remains an essential part of the skill of putting. Consequently, the limitations apply: to any stroke a player makes from the putting green, and to a stroke made with a putter from anywhere when the player’s intention is for the ball to come to rest on the putting green.
Can a player use a yardage or green book that contains images that do not meet the “scale limit” or the book itself does not meet the “size limit” without breaching Rule 4.3?
A player is not allowed to use a yardage or green book that does not meet both the scale and size limits to help read a line of play on a putting green.
However, the player can use such a book for other reasons without penalty (such as determining how far and where to hit an approach shot into a green, including determining general slopes on the putting green when playing such an approach shot, or determining a desired location on the putting green where the player wants to leave the ball for his or her next stroke, provided that in all such cases the player does not use a putter for the stroke).
Are putting green images hand drawn by the player or caddie required to meet the “size limit” requirement of the interpretation?
Yes, any handwritten notes (including hand drawn images of putting greens) must be contained in a book or on paper that meet the size limit of 4 ¼ x 7 inches, regardless of the level of detail included.
Are putting green images hand drawn by the player or caddie required to meet the “scale limit” requirement of the interpretation?
No, hand drawn images are not required to meet the scale limit. The only limitation on such handwritten notes is that they are recorded in a book or on paper that meets the size limit (see Question 3).
May a player use an oversize image of a putting green map (for example, on an 8 ½ x 11” sheet of paper) to help determine the line of play for an approach shot?
Yes, provided the player does not use a putter for the stroke.
Are notes created with the help of a computer design program (such as computer aided design (CAD)) produced by a player or caddie considered “handwritten”?
No. While CAD can be used to produce a putting green map that meets the scale and size limits, the regulations on “handwritten” notes only apply to notes that are physically written or drawn by the player or the caddie.
May a player or caddie photocopy (or the like) handwritten notes from another player or caddie and use that photocopy to help determine the line of play on the putting green?
No. Using photocopied notes to help determine the line of play on the putting green is the same as using the notes from another player or caddie, which is not allowed.
If one or more images in a book exceed the “scale limit” can the player use a photocopier as a means of reducing an image in order to meet the scale limit?
Yes.
May a player use a book to determine the line of play on the putting green that has seventeen green images that meet the scale limit but one that does not?
Yes, but the player would not be allowed to use the book to help determine the line of play on the putting green on the one hole that does not meet the scale limit.
The player would be allowed to use the other seventeen green images that meet the scale limit in any manner, including to help determine the line of play on the putting green.
May caddies exchange information and copy, by hand, each other’s notes before or between rounds?
Yes. The limitation on handwritten notes is only that any hand drawn or written information about a putting green must be physically written by the player and/or his or her caddie. This does not limit how a player or caddie obtains the information, even if through copying, by hand, pre-produced materials or notes from another player or caddie.
If a player begins his or her round with caddie A, but then switches to caddie B during the round, may the player and caddie B use a yardage or green book that contains handwritten notes produced by caddie A to help determine the line of play on the putting green?
In the limited circumstances where a player changes caddies during a round (for example, if caddie A were to get sick), the player would be allowed to continue to use both caddie A’s and caddie B’s handwritten notes for the remainder of that round.
If a player switches caddies during a tournament, may the player and the new caddie use handwritten notes that were made by the previous caddie to help determine the line of play on the putting green?
Yes. During a tournament, hand drawn or written information about a putting green may be used to read the line of play on the putting green if written by a caddie the player has previously had during the tournament. The ability to continue using these notes also includes situations where a caddie takes notes during practice rounds in the days leading up to the tournament but the player begins the tournament with another caddie.
This permission does not extend to situations where the player or caddie are attempting to circumvent the limitation on handwritten notes.
May a coach or captain that has been assigned as an advice giver either put notes in a player’s book, or use his or her own book to show the player when giving advice?
Yes. While the interpretation states that any notes are limited to only the player or caddie, when an advice giver has been identified to the Committee for a given round, that advice giver’s book and his or her notes are treated in the same way as the player’s caddie’s notes.
May a player use the notes from a partner or the partner’s caddie in Foursomes or Four-ball competitions?
Yes. While the interpretation states that any notes are limited to only the player or caddie, Rule 22.2 and 23.5a are clear in stating that a partner or the partner’s caddie may provide guidance.
However, if the player plans to use that book in subsequent rounds or competitions at that course, any notes written by the partner or the partner’s caddie in the player’s book would not be allowed to be used in a future round to help the player determine the line of play on the putting green, unless the player had the same partner or partner’s caddie for that round.
Note: Developers are encouraged to indicate on the cover or within a book’s legend the scale of green images as well as the overall size of the book. For example:
Putting green images are scaled at 3/8” to 5 yards or less and the book’s size is 6” x 4”
Interpretation on Putting Green Information
Purpose of Interpretation:
Rule 4.3 limits the use of equipment and devices that might help a player in his or her play, based on the principle that golf is a challenging game in which success should depend on the judgment, skills and abilities of the player. This interpretation of Rule 4.3 limits the size and scale of detailed putting green maps and any similar electronic or digital materials that a player may use during a round to help with reading his or her line of play on the putting green so that a player’s ability to read a green remains an essential part of the skill of putting.
[The limitations apply:
- to any stroke a player makes from the putting green, and
- to a stroke made with a putter from anywhere when the player’s intention is for the ball to come to rest on the putting green.
This bracketed information comes from a frequently asked question on green-reading materials. To access all FAQs, go to http://www.usga.org/GRM. ]
Putting Green Maps
The player is allowed to use a putting green map or other putting green information, except that:
- Any image of a putting green must be limited to a scale of 3/8 inch to 5 yards (1:480) or smaller (the “scale limit”);
- Any book or other paper containing a map or image of a putting green must not be larger than 4 ¼ inches x 7 inches (the “size limit”), although a “hole location sheet” that displays 9 or more holes on a single sheet of paper may be larger, provided that any image of a single putting green meets the scale limit;
- No magnification of putting green information is allowed other than a player’s normal wearing of prescription glasses or lenses;
- Hand drawn or written information about a putting green is only allowed if contained in a book or paper meeting the size limit and written by the player and/or his or her caddie.
Electronic or Digital Putting Green Maps
In electronic or digital form, any image of a putting green must meet the above scale and size limits. Even when an electronic or digital putting green map meets the above limits, the player is still in breach of Rule 4.3 if the player uses any device in a manner not consistent with the purpose of these limits, such as by:
- Increasing the size of the green’s representation beyond the scale or size limits;
- Producing a recommended line of play based on the location (or estimated location) of the player’s ball (see Rule 4.3a(1)).
Source: USGA.org
StrackaLine Greens Guides are 100% USGA Legal
