golfcalc 0.1.0

Golf handicap calculator and launch monitor ballistics estimator

golfcalc

Golf handicap calculator and launch monitor ballistics estimator. Built by GolfLaunchLab, an independent golf launch monitor review site.

Install

pip install golfcalc

Handicap Index

Calculate your USGA World Handicap System index from recent rounds:

from golfcalc import handicap_index

# (adjusted_gross_score, course_rating, slope_rating)
rounds = [
    (85, 72.1, 131),
    (88, 71.5, 128),
    (82, 70.8, 125),
    (90, 73.2, 135),
    (87, 72.1, 131),
]

print(handicap_index(rounds))  # 11.4

Shot Distance

Estimate carry and total distance from launch monitor data:

from golfcalc import carry_distance, total_distance

# 7-iron: 132 mph ball speed, 16.5 deg launch, 7000 rpm spin
carry = carry_distance(132, 16.5, 7000)
total = total_distance(132, 16.5, 7000)

print(f"Carry: {carry} yards")
print(f"Total: {total} yards")

# Adjust for altitude (Denver = 5280 ft)
carry_denver = carry_distance(132, 16.5, 7000, altitude_ft=5280)

Optimal Launch

Find the best launch angle and spin rate for your ball speed:

from golfcalc import optimal_launch

# Driver at 165 mph ball speed
result = optimal_launch(165)
print(f"Launch: {result['launch_angle']} deg")
print(f"Spin: {int(result['spin_rate'])} rpm")
print(f"Carry: {result['carry_yards']} yards")

CLI

# Calculate handicap interactively
golfcalc handicap

# Estimate distance from launch data
golfcalc distance 165 10.5 2500

# Find optimal launch conditions
golfcalc optimize 165

# At altitude
golfcalc distance 165 10.5 2500 --altitude 5280

About

Built and maintained by GolfLaunchLab. We test and review golf launch monitors with TrackMan-validated data. See our launch monitor reviews and buying guides.

License

MIT