9-hole handicap calculator
Strokes for 9 holes, and how a 9-hole round counts toward your handicap.
9-hole handicap calculator
Your strokes for 9 holes, and what a 9-hole round adds to your record.
9-hole course handicap
Most 18-hole courses publish separate ratings for the front and back nine; they're on the scorecard or the posting screen. A 9-hole course has its own 9-hole rating.
How 9-hole rounds count toward your handicap
Since 2024, a 9-hole score turns into an 18-hole differential right away. Your 9 holes get a differential as normal, then the system adds the differential you'd be expected to make on the other 9, based on your index:
So for a 16.0 index, the expected 9 is 16.0 × 0.52 + 1.197 = 9.5. If your 9 holes come out at 8.0, your 18-hole differential is 17.5.
You need an index for this. Before you have one, 9-hole scores are paired up to make 18-hole scores.
Do 9-hole rounds hurt your handicap?
No. The expected part is based on your current index, so a 9-hole round moves your handicap a bit less than an 18-hole round would. A great 9 will still bring it down.
More handicap tools
Common questions
Can I get a handicap from 9-hole rounds?
Yes. Any mix of 9- and 18-hole rounds adding up to 54 holes gets you an index.
How do I calculate a 9-hole handicap?
Use half your index: (index ÷ 2) × (9-hole slope ÷ 113) + (9-hole rating − par).
Updated November 2026