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

Set up 4 lines of 9 balls each, with balls 1 foot apart.

Place the lines on grass, 1 to 10 yards from the green, 5 yards between lines.

Mark two circles on the green around the hole: one with a 6-foot radius, another with a 15-foot radius.

Hit 36 shots, in two groups of 18 shots.

For the first 18 shots, aim for the small circle. For the next 18 shots, aim for the big circle.

Hit balls in order from any line, switch lines as wanted.

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

After 36 shots, count how many hit their target circles and enter your score in the app out of 36 attempts.

Put 36 balls into 9 groups of 4 balls each around the green, spaced 1–10 yards from the edge and 5–30 yards from the hole.

Use string, tees, or markers to make 9 stop zones on the green, spread out as different landing spots.

Hit 4 bump-and-run shots at each stop zone, for a total of 36 shots.

Start at any group, aim at the first stop zone, hit 4 shots, then move to the next zone; repeat until all zones have been used.

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

Add up the number of successful shots out of 36 and enter the 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.