Make Your 19th Hole the Best

Golf Calculators for Use or Purchase

Over the years, I've developed a number of different calculators to help people's golf games. Below is a list of those calculators. Click on the links for more information.

Driver Distance Calculator -- input your club speed and this calculator will calculate your carry distance, total distance and angle of launch that maximizes distance. It also plots a graph of the trajectory.

Handicap Calculator -- input your most recent scores, and this calculator will calculate your handicap index.

Golf Altitude Distance Calculator -- input your club carry distances at your home course and this calculator will calculate your distances at other temperatures and altitudes (like 5000 feet compared to Sea Level).

Golf Tournament Draw Calculator -- input the names of your players and this calculator will provide a draw that minimizes the number of times different players play with one another (16 Players in 4 Rounds, etc).

Golf Wind Distance Calculator -- input your distance, wind speed and direction, and this will calculate where to aim and what distance to play (tailwind, headwind, crosswind).

Golf Temperature Distance Calculator -- input your club carry distances at 75 F and this calculator will determine your distances at any other temperature.

Golf Putting Green Reading & Uphill/Downhill Adjustments -- learn the art & science of plumbing to help read putt breaks; learn how to adjust for uphill & downhill putts

Environmental factors can also increase the length of the golfer's drive, however. Golfers will hit it farther when the temperature is warmer (both the air, the club and the ball), when the wind is following (tail wind), when the target is downhill and when altitude is high.

GOLF TIP: During cooler weather, keep your golf balls warm. Start with 3 balls that were in your house overnight (even heat them in a heating blanket). Keep 2 in your trouser pockets to keep them warm. Replace the cold ball with a warm one at the end of the hole. Place the cold one in your pocket to get warmed up again. It won't regain it's original temperature but it will stay warmer than the air and ground. You'll gain a few yards of carry by using warm balls. You can even get a golf ball warmer to keep more balls warm!

The total distance of a drive depends on how far the ball carries in the air and then how far it rolls along the ground. The roll distance is highly dependent on the hardness of the ground and on the trajectory angle of the ball at impact. The steeper the trajectory, the less roll distance. The harder the ground, the greater roll distance.

 Average Golfer Swing Speed = 90 mph Carry distance = 195 yd --- Roll distance = 34 yd ---Total = 229 yd PGA Tour Average Swing Speed = 110 mph Carry distance = 267 yd --- Roll distance = 32 yd -- Total = 299 yd The roll distance of the average golfer is 17% of the carry distance while the PGA golfer is only 12% of the carry distance.

The average golfer gains much more distance in the summer when the fairways are firm. During the wet season, there isn't much roll.

GOLF TIP: During the cooler wet season, play the forward tees to shorten the course. This way, you'll be the same distance from the green as in the summer when you play longer tees.

A tail wind won't increase the carry distance much but increase the roll distance for an overall gain. The greater the wind speed, the greater the gain. However, the higher the wind speed, the more difficult it is to swing the club.

Apply This Science to Score Improvement

Using  accurate golf ball trajectory software, one can calculate how to adjust your club selection for changes in temperature, wind, altitude and elevation (uphill/downhill shots). See below.

Temperature

Warmer temperatures equate to longer carry distances. The difference between a cool morning and hot afternoon can be a full club.

You can provide me with yardages for each club in your bag. I'll input your values into a program I have written, and send you a template which will outline how different temperatures will change the real yardages for each club.

 Temperature Distances All Clubs \$24.99 USD 9 Clubs \$19.99 USD

Wind

You can be sent a copy "Reading Playing the Wind." I'll explain how you can easily measure the wind's speed (without using any kind of electronic device) and how much each mph of wind will affect your various club ranges.

You can provide me with yardages for each club in your bag. I'll input your values into a program I have written, and send you a template which will outline how different speed winds will change the real yardages for each club.

 Wind How to Play the Wind \$19.99 USD Your Own Club Ranges \$24.99 USD

Altitude

With increased altitude comes less dense air, meaning less friciton drag and longer carry distances.

You can provide me with yardages for each club in your bag. I'll input your values into a program I have written, and send you a template which will outline how altitudes will change the real yardages for each club..

 Altitude Distances Every 500 ft to 5000 ft \$24.99 USD Every 500 ft to 2000 ft \$15.99 USD

Hitting Uphill or Downhill

You need to adjust your club selection when hitting uphill or downhill. But how much?

I've worked out how to estimate elevation change (uphill or downhill shots), and created a formula for how much shorter or longer a yardage plays. OR, send me the location of any golf hole along with your normal carry distances, and I'll work out how far the hole plays and what club to hit.

 Uphill/Downhill The Process & Formula \$19.99 USD Each Individual Golf Hole \$29.99 USD

Why Choose Probable Golf Services?

We have been providing golf advice online since 1999 and have been research the best in golf science since 1996. From Probable Golf, you can get advice on how to improve your game using math & science, how to best arrange your golf group foursomes to reduce repeat pairings, how to protect your home or business from errant golf balls, how to best interpret golf statistics.

From kids to older adults, learn how to improve your score and the love of the game.

Simple Putting

Improvement in putting lower your score more than any other part of the game.

Swing Speed & Distance

The most important factor in hitting it long is increasing your swing speed.

Hitting Uphill or Downhill

You need to adjust your club selection when hitting uphill or downhill. But how much?