Golf Tools
Handicap, strokes gained, club gapping and the rest of the numbers that actually change a round.
Build a printable pocket yardage book for your home course, with tee-shot targets worked out from your own carry distances.
Golf Rules & Penalty GuideWhat it costs and what to do — 14 common rules situations in plain English, with rule numbers so you can check the actual text.
Strokes Gained CalculatorMeasure any shot against PGA Tour baselines — off the tee, approach, around the green and putting — the statistic that finally made golf stats meaningful.
Green Reading GuideEstimate break from slope, distance and green speed, with the six-step method for reading a putt properly rather than guessing from behind the ball.
Golf Ball Flight DiagnoserTwo questions diagnose your miss — all nine ball flights with the face and path cause, plus what actually fixes each one.
Golf Club Fitting GuideStarting specs from your measurements — shaft flex, club length, lie angle, grip size and driver loft — as a baseline before a proper fitting.
Golf Round Scorecard & Stat TrackerA digital scorecard tracking score, putts, fairways and greens in regulation, with round history saved in your browser.
Swing Speed to Distance EstimatorBall speed, carry and total from club head speed and smash factor, with the per-club smash reference — and why the driver number has a hard ceiling.
Club Distance & Gapping Chart BuilderBuild your carry chart, spot overlapping clubs and yardage holes, saved in your browser — the fitting check that costs nothing.
Golf Betting Game CalculatorScore Stableford, Modified Stableford, skins and Nassau for a foursome, with proper carryover handling and handicap strokes applied where they fall.
Weather & Altitude Distance AdjusterWhat your yardage actually plays like — altitude, temperature, wind and elevation change combined, rather than one adjustment at a time.
Golf Handicap CalculatorTrack rounds and compute your World Handicap System index and course handicap — with the counted-rounds rule people find counterintuitive.
About these golf tools
Altitude does more to a golf ball than almost anyone accounts for. Thinner air means less drag, and carry distance rises by roughly two per cent per thousand feet of elevation — so a course in Denver at 5,280 feet plays about ten per cent shorter than the same yardages at sea level. That is a full club and a half on a long iron, and it is why visiting players spend a round flying greens before they believe it. Temperature works the same way and gets ignored for the same reason: cold air is denser and a cold ball loses compression, so the swing that carries 150 yards on a warm afternoon carries several yards shorter on a cold morning. The second thing worth knowing is that dispersion scales with distance rather than being independent of it. A player whose shots vary by five per cent around the target line misses by four yards with a wedge and fourteen with a driver, from identical consistency. This is why laying up to a comfortable number often beats reaching for the green, and why strokes-gained analysis keeps finding that avoiding the big miss beats adding yards. The third is that a handicap index is not an average. It is built from the best eight of your last twenty rounds, so it describes something closer to potential than to typical performance. Playing to your handicap means playing well rather than playing normally, which is worth remembering before deciding a round was a disaster — most rounds are supposed to sit above it.