Hit Factor Genie
Optimize Your Shooting Performance
Welcome to HF Genie
The Strategy Calculator
Calculating stage math on the fly can be tough—the HF Genie simplifies it. Based on Eric Grauffel's method, this tool uses the High Hit Factor (HHF) to show how many points you can afford to drop. With this insight, you can strategically balance speed and precision—even planning Charlies on tough targets like partials, no-shoots, or swingers.
HHF Predictor
If a shooter consistently scores X% of the stage winner's HF (e.g., 80%), this tool estimates the 100% hit factor. Use the predicted HF in the Strategy Calculator to refine your plan.
Tested on major match data, the predictions are highly accurate!
Penalty – Points as Time
Think of a racing game where a ghost car shows the perfect lap—every mistake costs time, pushing you further behind. The HF Genie's "Points Down as Time" calculator works the same way.
For example:
- On a 6 HF stage, each Charlie (-2 points) puts you 0.33 sec behind your "ghost" (a flawless Alpha run).
- On a 2 HF stage, a Charlie (-2 points) is like adding 1 second to your time—the same penalty as shooting clean but 1 sec slower.
This tool helps you visualize how Charlies, Deltas, Mikes, No-Shoots, and Penalties impact your performance based on the stage's HF.
Stage Strategy
Total rounds required for the stage
Allowed Charlies: 0
Allowed Deltas: 0
Make up a miss in: 0 sec
Make up a Delta in: 0 sec
Saved Calculations
How It Works
This calculator helps you determine how many points you can afford to drop based on the stage's High Hit Factor (HHF).
Where to find HHF:
- Ask the Range Officer for fastest time
- Check major match scores
- Use live scoring updates
- Estimate using the Predictor tab
Key Formulas:
- Charlies Allowed = Round Count × Percentage (based on HHF range)
- Make Up Time = Points Lost ÷ Hit Factor
HHF Predictor
Your consistent percentage compared to stage winners
Predicted HHF: 0
To match winner: +0 HF needed
Improvement needed: 0%
Saved Calculations
Key Insights
If you consistently shoot at X% of the winner's HF, this estimates what 100% would be.
Example: 6.8 HF at 80% → Winner ≈ 8.5 HF
This means you need to be either:
- 25% faster with equal points, or
- 25% more points (convert 2 Charlies to Alphas)
How to use this:
- Calculate your average percentage compared to stage winners from past matches
- Enter your current HF and percentage
- Use the predicted HHF in the Strategy Calculator
- Adjust your stage plan accordingly
Points as Time
Total Points Dropped: 0
Equivalent Time Loss: 0 seconds
Equal to shooting clean but 0 seconds slower
Saved Calculations
The Math
This shows how points dropped affect your performance based on Hit Factor.
Formula: Time Penalty = Points Dropped ÷ Hit Factor
Example: 1 Charlie (2 pts minor / 1 pt major) on 2HF stage = 1 second (minor) or 0.5 second (major) penalty
Scoring Differences:
- Minor: Charlie = -2 pts (5-3), Delta = -4 pts (5-1)
- Major: Charlie = -1 pt (5-4), Delta = -3 pts (5-2)
Practical Applications:
- Understand the true cost of points dropped in time terms
- Compare different stage strategies (speed vs accuracy)
- Evaluate whether make-up shots are worth the time
- Analyze match performance beyond raw scores
Hit Factor Calculator
Hit Factor: 0
Saved Calculations
About Hit Factor
Hit Factor is the primary scoring method in USPSA and IPSC competitions. It's calculated as:
Hit Factor = Total Points ÷ Time
The competitor with the highest hit factor wins the stage, with others ranked by their percentage of the winner's hit factor.
Example Calculation:
Stage with 10 targets (50 points possible):
- 8 Alphas (8 × 5 = 40 points)
- 2 Charlies (2 × 3 = 6 points minor, or 2 × 4 = 8 points major)
- Time: 8.5 seconds
Hit Factor: (40 + 6) ÷ 8.5 = 5.41 (minor) or (40 + 8) ÷ 8.5 = 5.65 (major)
Dry Fire Timer
Improve your shooting skills with our free dry fire timer:
Open Dry Fire TimerFeatures:
- Customizable par time (0.1s increments)
- Random delayed start (0-3s)
- Chase the clock mode
- Multiple beep sounds
- Mobile-friendly interface
Dry Fire Training Tips:
- Start with large par times and reduce gradually
- Focus on quality reps then push speed
- Practice transitions between multiple targets
- Incorporate movement into your drills
- Record your progress and set goals
Support HF Genie
Help keep this tool free and improved by supporting our work
About This App
Hit Factor Genie was created by Wes Cronin to help competitive shooters optimize their performance through data-driven decisions.
This is a free tool supported by our community. If you find it valuable, please consider supporting through our store or partnerships.