Lesson 6.1: What is Yardage Book and Why Every Caddy Needs One
A yardage book is a hole-by-hole reference guide to a golf course — a compact notebook a caddy (or player) carries in their back pocket throughout a round to access precise distances, landmark locations, hazard details, and green notes at a glance. Think of it as a caddy’s personal intelligence file on the course: everything they know about every hole, organized so it can be used quickly under pressure.
On the PGA Tour, caddies carry yardage books that are works of precision — hand-drawn or professionally published documents with exact step-off distances, detailed green contour maps, wind notes, and years of handwritten annotations in the margins. A tour caddy who has carried a bag at Augusta for fifteen Masters has a yardage book that is worth thousands of dollars of accumulated knowledge.
As a junior caddy, you are not building a tour-level book on day one. But the habit of building and maintaining a yardage book — starting with the basics and adding detail over time — is one of the most powerful professional investments you can make. Here is why:
- It makes you more accurate. When you know that the sprinkler head on the left side of the 7th fairway reads 142 yards and sits 8 yards left of center, you don’t have to jog over to confirm it every round. You pull out your book, check the note, and give the player their number in 10 seconds. Accuracy delivered quickly is one of the most valuable things a caddy provides.
- It makes you more confident. A caddy who is unsure of distances hedges. “I think it’s about 155, maybe a 7-iron, not totally sure.” A caddy with a yardage book is certain. “It’s 154 to the front, 162 center, 171 back — the pin is cut back right so I’d play it at 167.” Confidence is contagious and players respond to it.
- It is a record of your learning. Your first yardage book at a new course will be basic. Your book after a full season on the same course will be detailed, annotated, corrected, and deeply personal. The notes in the margins — “this hole plays a full club into the prevailing wind,” “front-left pin here looks uphill but breaks hard right at the hole” — are irreplaceable. They cannot be purchased. They can only be earned by walking the course repeatedly with attention.
Commercial books vs. personal books
Many courses sell or provide a commercially produced yardage book — a printed document with basic hole diagrams, yardage markers, and green shapes. These are a useful starting point. But a commercial book is generic: it gives every caddy the same information. Your personal notes turn a generic document into a competitive advantage. Buy or obtain the commercial book if one exists, and use it as your foundation. Then annotate it aggressively with everything you observe and learn.
If no commercial book exists at your facility, build your own from scratch using a small notebook, index cards, or a dedicated yardage book template. The format matters less than the habit of recording and maintaining the information.
- Tee to green distances — total hole length from each tee
- Landmark yardages — distances from specific objects to the center of the green
- Layup yardages — ideal distances for laying up on par-5s and long par-4s
- Carry distances — how far to carry specific hazards from the tee or fairway
- Green diagrams — shape, pin positions, slopes, and break tendencies
- Hazard notes — exact locations of bunkers, water, OB stakes, and rough transitions
- Wind and condition notes — how the hole plays in prevailing wind
- Personal observations — anything that affects how the hole plays that isn’t in a printed book
Keep your yardage book in your back-left pocket throughout every round — the same pocket, every time. Caddies who have to search for their book when a player asks for information look unprepared. One consistent pocket, always accessible, takes two seconds to establish as a habit and saves you from looking disorganized at the worst possible moments.
First walkthrough: before your next round at your home facility, spend 30 minutes walking the first three holes without playing — just observing. Carry a small notebook. For each hole, sketch a simple top-down outline of the hole shape, mark where you think the 150-yard marker is, and write one observation about each hole that you believe a player would find useful. This first rough draft is the foundation of your yardage book. It does not need to be accurate yet — it needs to exist. Accuracy comes with verification over multiple rounds.