Feel the green—leave every Bump'n'Run inside the safe zone

Set up 4 lines of 9 balls, each ball 1 foot apart. Lines are 5 yards apart. Place lines 1 to 10 yards from the green and 5 to 30 yards from the hole.

On the green, make 9 stop zones with buckets, string, or tees. Arrange the zones in a grid, 3 rows of

Hit 36 bump-and-run shots in total. Hit 4 balls to each stop zone.

Hit 4 shots to the first zone, then move to the next. Do this until all 9 zones have 4 shots.

Count balls that stop inside the target zone as a success.

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

Put 36 golf balls into 3 groups of 12 balls. Spread the groups around the green between 1 and 10 yards from the edge and 5 to 30 yards from the hole.

Mark 3 landing zones in a straight line at the edge of the green, each 6 feet (2 meters) apart.

Hit 36 bump-and-run shots: 12 to zone 1, 12 to zone 2, 12 to zone

Use the first set of 12 balls for zone 1, the second set for zone 2, and the last set for zone

Keep ball positions and distances the same for the whole test.

Count each ball that stops inside the target zone as a success.

Add your total successful shots and enter your score in the app out of 36 attempts.

Place two lines of 18 balls each next to the green, 1 foot apart. Lines are at right angles, 5 to 10 yards apart.

Mark 9 stop zones on the green using buckets, tees, or string. Make 3 groups with 3 zones each, spaced evenly.

Hit 36 bump-and-run shots: 12 at each group of 3 zones (4 shots per zone).

From the first line, hit 12 shots at the first group of 3 zones (4 shots per zone).

Move to the second line, hit 12 shots at the second group of 3 zones (4 shots per zone).

Go back to the first line and hit 12 shots at the third group of 3 zones (4 shots per zone). Enter score in the app, out of 36 attempts.

Count each success where the ball stops in the target zone. Add all successes for your score.