Putting Gates: Choose a Start-Line Trainer That Fits Your Practice

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Start with the ball and the surface

Choose a ball-start gate by checking three things: the clear inner opening, whether it sits securely on your surface, and whether you can place it in the same spot each session. Measure between the inner faces; a product's stated size is not necessarily its usable opening. Put the gate just beyond the ball, centered on the intended start line, and note the ball-to-gate distance. This makes a repeatable checkpoint for a rolling ball, not a diagnosis of your whole putting stroke. If an existing gate—or two tees where permitted—already gives you a stable, measurable opening, you may not need another kit.

Separate ball gates from putter gates

A ball gate sits beyond impact and asks whether the ball passes through a chosen corridor. A putter-head gate is arranged around the putter's travel to constrain or observe a different movement. They are not interchangeable drills. Keep a narrow ball opening clear of the putter head's normal path; do not try to swing the putter through it. First make a few slow practice strokes with the gate in place to confirm nothing can be struck. Some indoor posts are accessories for compatible mirrors or alignment aids, not a freestanding set. EyeLine's Indoor Putting Gate Posts fit certain named aids and are explicitly not compatible with its Edge mirror, so check both the base and any exclusions before buying.

If your question is where your eyes or putter sit at address, see our putting-mirror buying guide. A mirror and a ball gate answer different questions; you do not need both automatically.

Choose a gap and distance you can repeat

Start with the widest gap you can measure accurately, then roll a short series from the same ball position and target line. A narrower opening or a farther gate makes the task less forgiving; it is not automatically a better practice setting. Change only one variable at a time and keep notes of opening width, ball-to-gate distance, surface and target. If the ball misses, record that it missed—not that your stroke is broken. A gate outcome alone cannot distinguish aim, face direction, path, speed, setup or a small surface disturbance. Use it as feedback about that particular roll, then adjust the drill only when you can repeat the original setup.

Set up for a fair comparison

Put the gate on a flat patch and check each foot for rocking or movement. Carpet pile, a seam, a slope, or a damaged green can change the roll or shift the gate, so move to a more even area rather than reading every miss as a putting fault. Photograph the setup or keep a small note with four fields: inner gap, ball-to-gate distance, surface and target. Use removable references outside the ball's line and follow facility rules; do not damage a practice green. Count clean passes and contacts separately without turning either into a skill rating. If the gate moved during a block, reset it before comparing the next block.

For an indoor setup, compare putting-mat footprint, roll and storage before adding more equipment. A gate cannot correct a seam or unstable practice surface.

Buy the kit only if it fits your routine

GoSports Align is a ready-made option if you want several fixed openings in one kit. Its listing names three metal gates in 2-, 3- and 4-inch sizes, weighted feet and a canvas case; it recommends a flat surface or carpet, and says tees can anchor the feet outdoors. Those labels do not establish the clear inner gaps, so measure the actual opening before building a drill around it. Consider the kit if you will practice on a compatible flat surface and value having three options together. Skip it if you already have a stable, measurable gate or need a verified clear opening before purchase. Two tees can substitute only on a green where tees are allowed; do not pierce a home floor or mat. These are maker specifications, not hands-on test findings.