Both matches on Monday had playoff implications and the postseason field is now set.

In the afternoon match, Los Angeles Golf Club beat The Bay Golf Club 5-3 in a thriller to take the No. 1 seed in the playoffs. These were, unequivocally, the two best teams in the regular season, and they played like it throughout. TBGC settles for the No. 2 seed, which might not be all bad as the playoffs start in two weeks.

In the nightcap, Boston Common Golf could not win its first match of the season and fell, 10-6 to New York Golf Club, which clinched the No. 4 spot in the playoffs after a miserable start to the season.

Let’s take a look at a few key takeaways from another day of action:

MATCH GALLERY: Best Photos from Monday's Rivalry Doubleheader

1. Call The Doctor, But Not For Me

After winning three of the first six holes, it looked as if TBGC was going to cruise to its fifth consecutive victory and stay undefeated in the regular season. However, LAGC bounced back in Singles, with the turning point being the 10th hole when Min Woo Lee threw the Hammer and proceeded to dump his next shot in the water, losing two points to LAGC.

The primary reason TBGC fell was, coincidentally, multiple hole outs by LAGC. Sahith Theegala did it on the 12th hole to win the decisive point, and Tommy Fleetwood followed him up one hole later. Both of them put their hands to their ear to "Call The Doctor", in reference to Min Woo Lee's Dr Chipinski celebration.

If they were going to fall, it was the perfect way for it to happen.

2. The Bay Wanted Top Spot

“I think one thing that surprised me about this whole experience is how much I care and how much I want to win,” said The Bay's Shane Lowry. “Obviously it's something new. We didn't know what to expect. I'm pretty pissed off that we lost tonight.”

This quote – it would be difficult to overstate this – is awesome. If fans ever ask, “Why should I care about this?” there is the answer right there. Lowry is not one to suffer foolishness, and it’s awesome to see him so fired up about both his team and contending to win these matches in SoFi Center.

MATCH HIGHLIGHTS: Watch the best shots from LAGC's win over The Bay

3. Personalities Shine

Styles may make fights, but characters make matches, and Lee and Theegala are two of the better characters. It hit me when Theegala did the Dr. Chipinski celebration that it is vital to pair characters like that against one another as often as possible in as compressed an atmosphere as possible.

TGL makes that possible in ways other events often do not, and thus you get truly awesome moments like the one we got with LAGC and TBGC on Monday afternoon.

4. NYGC Looking Dangerous

Despite a late charge by Boston Common Golf (in which they actually took the lead during Singles), NYGC eventually put them away to secure the fourth and final playoff spot.

Now, they have Xander Schauffele back in the fold and have nothing to lose when they take on TBGC in two weeks in the Semifinals.

Furthermore, NYGC had LAGC on the ropes a few weeks ago before LAGC scored four points in the final four holes to go to overtime, which they won. That LAGC-NYGC Semifinal matchup should be a great one.

Winless Boston

Perhaps the shocker of this season is Boston Common Golf going winless. I had the Ballfrogs in the championship against TBGC, but they just never got it going.

They went into this match near the bottom of the league in fairways hit, and did not do anything to improve that stat on Monday, hitting just four of their 10 fairways.

Still, Adam Scott was his usual articulate self after the loss moved them to 0-4-1.

MATCH HIGHLIGHTS: Watch the best shots from New York's win over Boston

“Anytime you have a loss, it's disappointing,” said Scott. “I felt like we were clawing back and had the momentum, but again, we're playing against great players, and they hit some great shots and came up with it when they needed it. I felt like we were a little unlucky overall on the season. I felt like we played better than our results. But that's kind of the match play game."

Star of the night

Xander Schauffele

Forget hitting the match-winning putt. Forget him winning nine points when nobody else won more than six. Forget the fact that he made as many putts as Boston Common Golf combined. Forget all of that because the bottom line for both Schauffele and his team is that it was just great to be back in action after he missed time with an injury earlier this season.

“It's awesome,” said Schauffele. “I missed being out, and just sitting at home, you sort of appreciate a lot of things when you're sort of sidelined. It got some juices flowing.”

Kyle Porter wrote close to 3 million words about golf over 12 years for CBS Sports and covered 47 majors and five Ryder Cups in the process. He has written three books – Normal Sport 1, 2 and 3 – and built a newsletter of 15,000 golf fans at normalsport.com.