Lie Penalty Estimator

Flyers: With a mid-iron (7i-PW), light rough eliminates spin. Without spin (which generates drag), the ball "knuckleballs" and travels further than a clean lie.
Heavy Rough: The sheer mass of grass slows the clubhead prior to impact, massively reducing ball speed and carry distance.

Grass trapped between the clubface and the ball drastically alters friction and launch conditions. Estimate the yardage penalty of missing the fairway.

Normal Carry Distance (Yards)

Lie Quality

Light Rough (Flyer) Ball sitting up slightly. Blades of grass will get behind ball. Medium Rough Ball nestled down. Substantial grass interference. Heavy / Buried Ball deep in thick grass. Hosel grab likely.

Estimated Carry

Yards

Spin & Rollout Effect

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