TOLEDO, Ohio – It took most of Day 1 before there was a rules controversy at the Solheim Cup, but a rules controversy there was.

Nelly Korda was putting for eagle at the par-5 13^th in her fourball match when the ball rolled around the right edge of the hole and settled – depending on your perspective – near the lip behind the hole.

Opponent Madelene Sagstrom picked up the ball and handed it to back to Korda, and the hole appeared to be tied in birdie.

Rules officials determined otherwise.

A tournament rules official watching on television quickly called on-course rules official Missy Jones, telling her that Korda’s ball was overhanging the lip and Sagstrom didn’t allow for at least 10 seconds for Korda to approach the ball to see if it would eventually drop.

“But it was never going to go in,” Sagstrom told Jones. “It was not hanging on the hole. Can we get TV to look at it?”

After further review of television replays, the decision was upheld. The LPGA provided a statement, saying that the "chief referee, match referee, observer and TV observer all deemed that Nelly Korda's third shot on No. 13 was overhanging the hole." Sagstrom, therefore, had violated Rule 13.3a (below) and Korda was ruled to have made her putt, as it relates to Rule 13.3b, in this case for a '3' and the hole win.

It was a crucial moment in the match because it gave the U.S. team of Korda and Ally Ewing a 1-up lead over Sagstrom and Nanna Koerstz Madsen with five holes to play. The Americans hang on to the advantage, matching the Euros down the stretch and winning by that same 1-up margin.

Here is the full definition of Rule 13.3a in the USGA’s Rules of Golf:

Waiting Time to See If Ball Overhanging Hole Will Fall into Hole

If any part of a player’s ball overhangs the lip of the hole:

• The player is allowed a reasonable time to reach the hole and ten more seconds to wait to see whether the ball will fall into the hole.
• If the ball falls into the hole in this waiting time, the player has holed out with the previous stroke.
• If the ball does not fall into the hole in this waiting time:
  • The ball is treated as being at rest.
  • If the ball then falls into the hole before it is played, the player has holed out with the previous stroke, but gets one penalty stroke added to the score for the hole.