Explainers
Articles
Every article writes the formula out in full, names the governing body and version year the numbers come from, and links the calculator that applies it. No news, no predictions, no betting.
Golf handicapping
Golf
How is a golf handicap calculated?
Score differentials, the lowest 8 of 20 rule and the reduced-count table, with a worked example.
Golf
What is a score differential in golf?
The formula that normalises a round for course difficulty, Slope, Course Rating and PCC.
Golf
Course Handicap vs Handicap Index
Why one is portable and one is course-specific, and how to convert between them.
Golf
What is a good golf handicap?
Where your Index sits by skill level, with the numbers framed honestly and cited.
Golf
What is the Playing Conditions Calculation?
The −1 to +3 daily adjustment, where it comes from and why you cannot compute your own.
Running & racing
Running
How to calculate running pace
Pace, speed and finish time from first principles, in metric and imperial.
RunningHow accurate is the Riegel predictor?
Where the 1.06 exponent came from and the distances it breaks down over.
RunningHow age grading works in running
Age factors, age-graded percentage, and why sites using different table years disagree.
RunningMarathon pace chart by finish time
A full pace table from 3:00 to 5:00 finishers, in min/km and min/mile.
Strength scoring
How is a Wilks score calculated?
The 5th-degree polynomial coefficient, the formula and a worked example in kg.
StrengthWhat is a good Wilks score?
Community benchmark bands, framed as context rather than an official classification.
Strength
Wilks vs DOTS vs IPF GL points
Three published systems, why they disagree, and which one your federation uses.
StrengthHow to estimate your one-rep max
Epley, Brzycki and Lombardi side by side, with the spread as the error band.
Cricket scoring
No articles match that search. Try a sport or a calculation name.