Track your game. Understand your golf.
Score your rounds, compete with friends and build a complete picture of your game. Use your official handicap or track your progress with a Sonna Golf CPI Handicap.
Free to start
Works on web and mobile
Your data, your rounds
Your game, on every screen.
Sonna Golf builds your Current Playing Index from the rounds you count. Every differential worked out from course rating and slope, the same method as WHS. See the full picture on the web, and carry your card and your numbers on your phone.
Go beyond the scorecard.
Sonna Golf tracks the numbers golfers talk about after every round: scoring average, best rounds, birdies, pars, bogeys, doubles and the days where the wheels came off.
- Scoring average over 9 and 18 holes
- Best 9 and best 18
- Your toughest day
- Scoring mix: birdies, pars, bogeys, doubles, triples
- Season filters across every year you’ve played
Measure what matters.
Fairways, greens, putts and scrambling tell a bigger story than the final score. Sonna Golf helps you spot patterns, track trends and focus practice where it counts.
Fairways hit
Keep yourself in play off the tee.
Greens in regulation
Give yourself birdie looks and stress-free pars.
Putts per round
Find the strokes hiding on the greens.
Scrambling
See how often you save par after a miss.
Every metric carries a trend label (improving, strong or on track) with targets and progress bars so you always know where you stand.
Understand what the numbers mean.
Stats are useful. Interpretation is better. Caddie IQ, Sonna Golf’s AI, turns your recent rounds into plain-English insights about your strengths, weaknesses and current level.
- Recent-round analysis in plain English
- Your strengths, called out clearly
- What is holding you back
- A simple playing-level summary
- Practical areas to focus your practice
Built for real rounds, not just official ones.
Most golfers play more than qualifying competitions. Sonna Golf is built for social rounds, society days, trips, friendly matches and regular golf: the rounds that actually tell the story of your game.
Official WHS
- Maintained by your club or federation
- Used for official handicap purposes
- Optional to enter in Sonna Golf
Current Playing Index
- Calculated by Sonna Golf
- Based on your counted rounds
- Shows current playing form
- Same calculation method as WHS, just not official
- Useful for social golf, events and personal progress
Stats & Analysis
- Shows what is changing
- Helps identify strengths and weaknesses
- Makes your golf easier to understand
Questions, answered.
No. CPI stands for Current Playing Index. It’s calculated using the same method as the World Handicap System, but it is not an official WHS or federation-issued handicap. It’s Sonna Golf’s own index based on the rounds you choose to count.
Explore Sonna Golf
Society days, charity days, trips and club competitions, scored live.
Run season-long Orders of Merit and society days with live scoring.
Sponsor-branded leaderboards and shotgun-start fundraising days.
Multi-day, Order-of-Merit scoring for your golf tour.
Put the live leaderboard on the clubhouse big screen.
A shareable Current Playing Index card from the rounds you count.
Rating, slope and scorecards for golf courses worldwide.
Golf is better together.
Start building the story of your game.
Record rounds, follow your CPI, track the stats that matter and understand where your golf is heading.