DATA · SCIENCE · NEWS
Behind the Swing
The golf knowledge magazine by golftoolbox: physics, test data, rules and the latest gear – all about your swing.
Course rating and slope explained: how tough is your golf course really?
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Handicap calculator: how to work out your Handicap Index and playing handicap (WHS)
Read moreabout Handicap calculator: how to work out your Handicap Index and playing handicap (WHS)
Calculating your handicap: how your Handicap Index works (with calculator)
Best 8 of 20, slope, course rating and course handicap: how your Handicap Index is calculated, why it can go up after a good round and what changed for 9-hole rounds in 2024. With a calculator for your course handicap and your index.
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Green card 2026: process, costs and exam – with cost calculator and checklist
What does the green card (Platzreife) cost, how does the exam work and what comes next? Everything beginners in Germany and Switzerland need to know – with a cost calculator for your first golf year and a checklist to tick off.
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Golf rules in autumn & winter – leaves, frost, snow and preferred lies: what really applies
You can move leaves, but not frost. Snow is your choice. And preferred lies only apply if your club allows them. The key rules for autumn and winter at a glance.
Warm golf balls in autumn – more distance or myth? What tests and the rules say
Does a warm golf ball fly further? Lab and on-course tests show up to 8 m difference. Plus: what the Rules of Golf say about warming balls, leaves and dew.
Read moreabout Warm golf balls in autumn – more distance or myth? What tests and the rules say