Eight Runs in San Diego and the Number That Explains June

One hundred and thirteen.

That was the Braves' team wRC+ from Opening Day through May 17 -- second in baseball behind only the Dodgers, per FanGraphs. A lineup that created runs at a rate 13% above league average. A lineup that made the rest of the roster's ambitions feel reasonable.

Since May 18, that number is 87. Third-worst in baseball. Only the Padres and Guardians have been worse.

The difference between 113 and 87 is twenty-six points. The difference between 113 and 87 is also the distance between a team that looked like the best in the National League and one that just got swept in San Diego by a rotation featuring a pitcher who was in Triple-A two days earlier.

The Sweep Nobody Should Ignore

The Padres took all three at Petco Park: 1-0, 7-6 in 10 innings, 5-2. The Braves scored eight total runs across 28 innings. JP Sears, called up from Triple-A El Paso the day before when Lucas Giolito went on the injured list, started Game 3 and held Atlanta to two runs in 5.2 innings. A fill-in starter, on his season debut, was more than adequate against a lineup that entered June at 40-20 with the best record in baseball.

That is not a scheduling accident. That is a symptom.

In the finale, Martin Perez lasted four innings -- the first time in 12 starts he failed to reach the fifth. He walked four, allowed four hits, surrendered three runs. Ty France homered, doubled, and drove in two. Samad Taylor singled in two more in the sixth. The Braves' answer was Joey Bart's two-run homer off Sears in the sixth, and then silence.

The Available Players Who Are Not Producing

The tempting explanation is injuries. Ronald Acuna Jr. has been on the injured list since June 10 with a Grade 1 left hamstring strain -- the same hamstring, the same spot as his May injury. Manager Walt Weiss said Acuna is "a long way" from returning. Chris Sale is on the 60-day IL with a fractured rib. Spencer Strider joined him there June 17 after his fastball fell to 88 mph.

But the offensive collapse is not explained by who is absent. It is explained by who is present.

Austin Riley has not homered in more than a month. His .339 slugging percentage is the worst of his career. The underlying quality is still there -- his expected slugging sits at .549, per Statcast, meaning the barrel rate and hard-hit numbers suggest this drought should not last. But expected slugging does not score runs. Actual slugging does. And actually, Riley has not driven a ball over a fence since late May.

Drake Baldwin's return from his oblique strain on June 16 began with a leadoff homer -- his 14th of the season, a theatrical announcement that the catcher the Braves built from within was back. Since that first plate appearance, he has slashed .077/.077/.192 across 26 plate appearances. The average oblique recovery, per Baseball Prospectus, is 47 days. Baldwin returned in roughly half that time after a single rehab start. The catcher position amplifies oblique demands -- receiving, throwing, squatting 120 times a night. The numbers suggest he may have come back before the oblique was ready to let him.

Before the injury, Baldwin was slashing .297/.383/.509 with a 125 wRC+ and an exit velocity of 92.3 mph. He was on pace for 46 home runs, which would have broken Javy Lopez's franchise record for catchers. That version of Baldwin is not the one currently standing in the batter's box.

The Convergence

The rotation crisis has been loud. The bullpen has been extraordinary -- MLB-best in ERA- since May 18 at 65, per FanGraphs. The relievers have functioned as load-bearing walls for a rotation that has produced a 6.53 ERA and one quality start across an 11-game span in which the Braves went 3-8.

But a bullpen cannot hit. And the offense has now gone quiet alongside the rotation, which means both halves of the game are failing simultaneously for the first time this season.

The monthly slash lines tell the story in descending order. Through May 17: .265/.328/.444. Since May 18: .232/.296/.377. In June's worst stretch, the Braves scored 33 runs in 11 games -- the lowest total in baseball over that span.

The Braves entered June at 40-20. They are 8-11 since. The NL East lead that peaked at 10.5 games has been trimmed to 4.5 over the Phillies. The division is not in danger -- FanGraphs gives the Braves an 80% chance of winning it, and every projection system still has their postseason probability above 94%. But the cushion is being spent, not earned, and cushions have a limit.

What the Record Hides

Forty-eight and thirty-one. Third-best record in baseball, behind the Dodgers at 52-29 and the Brewers at 49-29. On pace for 97 wins. By any altitude reading, this is a team with nothing to worry about.

But altitude readings do not distinguish between a plane that is climbing and one that has leveled off and begun a gradual descent. The instruments say 48-31. The trajectory says the Braves have been the worst team in baseball over their last 11 games. Both things are true. The question is which one is diagnostic.

The trade deadline is 39 days away. The conversation has been about starting pitching -- and it should be, given that the rotation's ERA- since May 18 is 125 and Sale's absence extends past August 3. But the offense is now part of the same conversation. Riley's power has gone dormant. Baldwin may be playing through an injury. Acuna's return date is unknown. The lineup that was second in baseball is now producing like a team trying to avoid last place.

Baseball has a long memory, and June will eventually become July. The sample will grow. Regression works in both directions -- toward the mean for the lineup, toward health for the injured list. The Braves have earned the right to slump and still be fine. Forty-eight wins through 79 games is a body of evidence that one bad month does not erase.

But five weeks is no longer a slump. It is a trend. And trends, unlike slumps, require a cause. The Braves know the cause. They just do not have the solution yet.