Golf Tutorials

What Do Blue Markers Mean in Golf?

By Spencer Lanoue
July 24, 2025

Chances are you’ve seen them on almost every golf course you’ve played: the small, colored stakes or yardage plates planted in the fairway. These markers are your on-course guideposts, but if you don't know the system, they can be as confusing as they are helpful. This article will explain exactly what blue markers mean in golf, how they relate to the other colored markers, and most importantly, how to use that information to choose the right club and hit better approach shots.

What Do Blue Markers in Golf Mean?

Let's get straight to it. In most cases, a blue marker on the golf course indicates a distance of 150 yards to the center of the green. This marker could be a stake on the side of the fairway, a round disc sitting flush with the turf, or even a painted marking on a sprinkler head or cart path.

The key phrase to remember here is "center of the green." This is a vital distinction. The blue marker doesn't measure the distance to the hole, which could be placed anywhere on the putting surface. It gives you a reliable, fixed benchmark number to work from. Knowing this fundamental distance is the first step in moving from simply guessing at your club selection to making a smart, strategic decision before you even take your practice swing.

While the system can have slight variations from one course to another, think of blue as the "base" number for most golfers' approach shots - the 150-yard mark.

The Family of Yardage Markers: Understanding Blue, White, and Red

The blue stake rarely works alone. It's usually part of a color-coded system that gives golfers key reference points as they approach the green. To fully understand the blue marker's role, it's helpful to know about its common companions: the white and red markers. It's important to know that there's no official, universal standard mandated by governing bodies like the USGA. However, a widely adopted convention helps us navigate most courses. Always take a peek at the scorecard or a sign near the first tee to confirm that course's specific system.

The Blue Marker: Your Core Benchmark (Typically 150 Yards)

As we've mentioned, blue is your cornerstone marker, typically representing 150 yards to the middle of the green. Why is 150 yards so significant? For a large percentage of amateur golfers, this distance corresponds to a full swing with a specific mid-iron - perhaps a 6, 7, or 8-iron. Identifying your "150-yard club" is one of the most foundational pieces of knowledge you can have about your own game. It gives you a reliable anchor from which you can make adjustments. When you know, without a doubt, what club to pull from 150, deciding between a 140-yard shot and a 160-yard shot becomes much simpler.

The White Marker: Inside the Scoring Zone (Often 100 or 200 Yards)

The white marker's meaning can be a bit more variable, but it often represents one of two key distances: 100 yards or 200 yards. When it's used for 100 yards, it signals that you've entered the prime scoring zone. This is a distance where you should be attacking the pin with one of your wedges, expecting to leave yourself with a reasonable putt. If a course uses white for 200 yards, it's a marker for longer approach shots, often demanding a hybrid, fairway wood, or a very well-struck long iron. Context is your friend here, if you see a blue marker (150) and then a white one closer to the green, you can be pretty sure that white one means 100 yards.

The Red Marker: Your Attack or Layup Signal (Often 100, 200, or Hazard Lines)

Red can be the most versatile color on the course. As a yardage marker, it most commonly marks either the 100-yard mark (often a red plate) or the 200-yard mark. Again, if you're closer to the green than the blue 150-yard marker, the red one is likely signaling 100 yards. If you're farther out, it's probably for 200. Of course, red stakes are also famously used to define a lateral water hazard, so it's good to distinguish between fairway yardage stakes and boundary stakes.

A Friendly Reminder on Variations

The most common system you'll encounter is:

  • Blue: 150 yards
  • White: Varies, often 100 or 200 yards
  • Red: Varies, often 100 or 200 yards

However, another popular system is Red for 100, White for 150, and Blue for 200 yards. Don't let this fluster you! The golden rule is simple: Always check the local course information. Taking 10 seconds to read the scorecard can save you a bundle of strokes and frustration. The goal is to walk onto any course and adapt to its system with confidence.

Beyond the Stakes: Other Places to Spot Your Yardage

Yardage stakes aren't the only way a golf course provides you with distance information. Keep an eye out for these other common markers:

Sprinkler Heads

These are one of the most useful sources of information on the course. Almost all modern courses engrave yardage information directly onto the fairway sprinkler heads. Just like the stakes, this number almost universally indicates the distance to the center of the green. You might find several sprinkled down the fairway, giving you precise numbers even when you're far away from a colored stake.

Fairway Discs and Plates

Many courses prefer plates or discs that sit flush with the ground instead of stakes. These are functionally identical to stakes and often use the same red, white, and blue color-coding scheme. They are less intrusive and easier for maintenance crews to mow over, so you'll see them frequently.

The Special 150-Yard Marker

Because the 150-yard distance is so fundamentally important, many courses go out of their way to make it obvious. You might see a uniquely shaped bush (often called a "barber pole" bush) or even a distinct painted line across the fairway. When you see a special landmark like this, you can be almost certain it's indicating the 150-yard spot.

How to Use The 150-Yard (Blue) Marker Like a Seasoned Pro

Knowing that the blue marker means 150 yards is one thing. Using that information to actually improve your score is another skill entirely. This is where simple course management comes into play. Think of it as a simple, three-step process.

Step 1: Get Your "Actual" Number

Your golf ball will rarely land exactly next to the blue marker. The first step is to quickly find the distance from your ball. A simple way to do this is to pace it off.

  • Find the blue marker.
  • Walk directly to your ball, counting your steps (paces). One average stride is roughly one yard.
  • If your ball is behind the marker (further from the green), add the number of paces to 150.
  • If your ball is ahead of the marker (closer to the green), subtract the number of paces from 150.

Example: Your ball is 8 paces behind the blue marker. Your base distance is now 150 + 8 = 158 yards to the center.

Step 2: Account for the Pin Location

Now that you know your distance to the middle, look at the green. Where is the flagstick located? Your distance to the flag isn't your distance to the center. This is the adjustment that transforms a good shot into a great one.

  • Front Pin: The hole is cut on the front third of the green. You need to hit the ball a shorter distance. Subtract about 7-15 yards. Playing to the middle (the 158 you just calculated) would fly way over the pin.
  • Middle Pin: The hole is near the center, just like your yardage. Your number is pretty accurate. You can fine-tune by a few yards, but your 158 is a great number to trust.
  • Back Pin: The hole is cut on the back third of the green. You need to hit the ball- a longer distance. Add about 7-15 yards.

Example: Your ball is at 158 yards to the center, and the pin is cut on the very back edge of the green. Let's add 12 yards. Your adjusted number is now 158 + 12 = 170 yards to the hole.

Step 3: Factor In the Outside Conditions

The final step is to think like a caddie. Are there any other factors that will affect the ball's flight?

  • Elevation: Are you hitting uphill to the green? An uphill shot plays longer. You'll need to "club up" - take more club than the yardage suggests. Hitting downhill? The ball will travel farther, so "club down." A good rule of thumb is to add one club for a significantly elevated green.
  • Wind: Is the wind in your face (hurting) or at your back (helping)? Hitting into the wind requires more club, and a tailwind calls for less. Throwing a bit of grass in the air will give you a quick read.

Example: Your 170-yard reading is to a slightly elevated green, and you feel a one-club wind in a your face. That 170-yard shot is now "playing" more like 185-190 a yards. You were about to pull your 170-yard club, but now you wisely choose a longer club to compensate.

In just a few moments, you turned a simple "Blue = 150" thought into a professional-level analysis. You went from a 150-yard shot to a 190-yard shot. That's a three-club difference! This is the process that saves strokes and helps you avoid those big mistakes.

Final Thoughts

In summary, the blue marker is most commonly your 150-yard reference post to the center of the green. But its true value is unlocked when you use it as the starting point for smart course management. By pacing off your distance, adjusting for pin location, and considering a real-world factors like wind and elevation, you can turn a generic number into a precise plan for every a approach shot.

Thinking through all those factors on every shot can sometimes feel like a lot, especially when the pace of play is a concern. The goal is to make smart, confident choices without getting bogged down by doubt. At Caddie AI, we help you simplify this entire process. You can use our app as your personal caddie to analyze your lie, get club recommendations, and receive customized strategies based on real-time information. It acts as your on-course coach, helping remove the guesswork so you can step up to your ball with a clear plan and the confidence to execute your best swing.

Spencer has been playing golf since he was a kid and has spent a lifetime chasing improvement. With over a decade of experience building successful tech products, he combined his love for golf and startups to create Caddie AI - the world's best AI golf app. Giving everyone an expert level coach in your pocket, available 24/7. His mission is simple: make world-class golf advice accessible to everyone, anytime.

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