The fourth night of the TGL was a night of firsts.

Not only did the showdown between Rory McIlroy’s Boston Common Golf and Tiger Woods’ Jupiter Links Golf Club give us our first TIO ruling in the simulator league (not a joke), but it also gave us our first glimpse one of the high-tech league’s unique rules.

Kevin Kisner hit his tee shot on the par 3 fifth hole to the top of a ridge on the back part of the green. On the simulator, the ball stopped on the slope, much to Kisner’s chagrin. But when Jupiter Links went to place the ball on that portion of the green, they unsurprisingly couldn’t get it to stop.

“We got hosed out of nine feet there,” Kisner said as he attempted to get the ball to stop on the slope.

This allowed Jupiter Links to place the ball at another spot on the green that was, according to rules expert Mark Russell, in a “position not near the hole.”

“When the player could not get his ball to come to rest, he had to go to a position not near the hole where it would come to rest. So that’s what they did. Just came down the slope a little bit and placed it in a position not near.”

Boston and Jupiter ended up tying the hole, but the ruling points out an early issue with TGL — the technology hasn’t always been spot on. Given where Kisner’s ball landed on the simulator, it should have rolled back down the slope. That’s something that the league should be able to clean up as it gets going.

It also puts the high-tech green and its severity under the spotlight. Through three weeks, we’ve seen some of the world’s best golfers struggle with the speed of the green, often failing to stop a 20-foot putt within 5 feet. While Kisner’s ball should have come back on the simulator, the fact that they were unable to place the ball even near the landing spot shows how slippery TGL’s green is and how it might need to be tweaked going forward.

All in all, Monday night was a better night for TGL as the league’s two needle-movers added some juice and entertainment to a product that has had its ups and downs during the first three weeks.