Thread the gap: precision Bump'n'Runs to a tight pin

Put 2 rows of 20 golf balls each on flat grass near the green, 5 yards apart.

Make sure both rows are between 5 and 30 yards from the hole, and keep all balls on the fairway, not on the green.

Split the 36 shots into 3 groups of

First 12 shots, try to land the ball within 5 feet left of the hole.

Next 12 shots, try to land the ball within 5 feet right of the hole.

Last 12 shots, aim to land the ball in a 5-foot circle around the hole.

Hit every third ball from each row: start with one row (balls 1, 4, 7, etc.), then switch to the other row, and keep going until all 36 shots are done.

Count each ball that stops in the right target area as a success for that group.

When all 36 tries are finished, add the successful shots and enter your score in the app, out of 36.

Set up 10 piles of balls in 2 lines, each line 3 yards/meters apart. Piles are 4 yards/meters apart in each line.

Put the piles at distances between 1 and 10 yards/meters from the green, and 5 to 30 yards/meters from the hole.

On the green, make 3 landing zones with sticks or clubs, each zone 6 feet (2 meters) apart in a line.

Do 36 bump-and-run shots, aiming for each landing zone 12 times.

Hit 12 shots at the first zone, then 12 at the second, then 12 at the third. Switch piles as needed.

Count each shot that lands and stays in the correct zone as a success.

Add up successes and enter score in the app out of 36 attempts.

Set up 4 rows of 9 balls each, spaced 1 foot apart. Each row is 3 yards apart.

On the green, use strings or tees to mark 4 circles, each 6 feet wide.

Hit 9 balls at each circle, for a total of 36 shots.

Start at any row. Hit 9 balls at the first circle, then the next 9 at the second, and so on for all circles.

Keep the balls in the same place and aim at the target circle each time.

Count how many balls stop inside each circle after 9 shots.

Add up the number of balls that stopped inside the target circles out of 36, and enter score in the app, out of 36 attempts.

Prepare 36 balls and make 4 piles of 9 balls each.

Put each pile in a different spot, 1 to 10 yards from the green and 5 to 30 yards from the hole.

Mark 4 areas on the green using string or tees, each area should be about 6 feet across.

Hit 36 bump-n-run shots, trying to land 9 balls in each area.

Start from one pile, aim at one area, and hit all 9 balls. Move to the next pile and area.

Keep going until all 36 shots are done, 9 shots per area.

Count how many balls stopped in the target area each time.

After all 36 shots, enter how many successes out of 36 in the app.

Arrange 40 balls into 10 piles of 4 balls each. Place the piles in two parallel lines, 5 to 10 yards apart, with each pile in a line about 2 yards apart.

On the green, mark two target zones: an inner circle with a 6-foot radius and an outer circle with a 15-foot radius.

Hit 36 shots: 18 to the inner circle, 18 to the outer circle.

Hit shots from any pile, switch between piles and lines.

Count a shot as a success if it stops in the target zone.

After 36 shots, add up successful shots and enter score in the app, out of 36 attempts.

Place two lines of 18 balls each near the green. Balls are 1 foot apart. Lines are 5 to 10 yards apart.

On the green, make a circle around the hole (6 feet radius) and divide it into 4 equal quadrants with string or markers.

Hit 36 bump-and-run shots total, 9 shots at each quadrant.

For each set of 9 shots, aim to stop the ball inside one chosen quadrant.

Hit 4 or 5 shots in a row from one line, then switch to the other line and finish the 9 shots for that quadrant.

After 9 shots to one quadrant, move to the next quadrant and repeat the routine until all 4 quadrants have been used.

Count each ball that stops in the right quadrant as a success.

After all 36 shots, add up successful shots in the intended quadrants and enter score in the app, out of 36 attempts.