Beginning back on June 17, the Cubs entered a brutal stretch of 24 games in 24 days, with the bulk of those on the road. With six games remaining in that block, it’s been a far from enjoyable marathon.

The 24-game batch got off to a roaring start with a three-game sweep of Pittsburgh. But then St. Louis rolled into town on June 20, sweeping the Cubs in three, and triggering the first four-game losing streak for the Northsiders, capped off by a loss at Miami. After dropping two out of three to the Marlins, the Cubs rebounded with a road sweep of the hapless Reds, only to then be decimated in four straight by the Mets. The Reds came into Wrigley and extracted a little revenge, grabbing two out of three, bringing us up to the current date, a day after the Atlanta Braves steal a win at Wrigley in a makeup game from April.

In all, the Cubs have managed just a 5-13 record in their last 18 games, including two separate four-game losing streaks. What is happening here?

In short, they look tired. It’s no excuse, but over the last few weeks, certain things are very noticeable. First and foremost, the starting pitching, which has been the bread and butter all season, is not nearly as sharp. One through five in the rotation have become prone to ineffectiveness, high pitch counts, walks, and giving up home runs. A lot of home runs in fact. In various times during this stretch the Cardinals, Marlins, Reds and Mets have all bashed Cubs pitchers to 7+ runs in a game. Much of the defense hasn’t looked as sleek-footed either, adding to the struggles. Part of this conundrum can be traced to who’s behind the plate. While rookie phenom Willson Contreras has performed very well in his limited time, it’s a still a small sample size to this point. Miguel Montero has struggled mightily all season both in the field and behind the plate, and with a long stint on the DL one may wonder if he’s been really hurt all season. That leaves 39-year-old David Ross, who has been highly touted this year, and for good reason. The simple fact is the best version of this Cubs team, at least defensively, is when Ross is on the field. The snag there is you just can’t play Ross daily, and now he’s on the 7-day DL for concussion protocol. With a history of concussions in his career, there’s no telling how another bell-ringing could affect ‘ol Gramps.

Offensively there has been a lot of inconsistency as well. Whether that’s partially due to injuries (Dexter Fowler’s absence has been extremely impactful) or virtually a new lineup every day,  it’s hard to tell. There have been some bright spots: Rookies Albert Almora Jr, and Willson Contreras have begun their MLB careers with distinction, and Anthony Rizzo and Kris Bryant continue to slug well.

The good news: The Cubs still hold an 8 game lead in the NL Central, and are 19 games over .500 for the season. As we’re seeing, it’s great they got off to such a roaring start and built that cushion, because things change faster than people think in the game of baseball. More good news: All the above is correctable. Players will get healthy, pitching and defense can get sharper, and the bats can find consistency. It’s not a question of if.

There’s a whole half of baseball left to be played. Besides, I’m sure most Cubs fans would rather they struggle in June-July than September-October, right?