Here’s our weekly look at 10 mind-blowing notes from the last week in baseball (Sept. 15-21).

Even more grand events: Royce Lewis hit yet another grand slam last Friday, marking his 16th career home run, fifth career slam and fourth of the season. Lewis became the first player with five grand slams within his first 16 career home runs. Lewis is the first player to hit four grand slams in a span of 18 games or fewer, according to the Elias Sports Bureau. The prior shortest span in which a player had hit four grand slams was 39 games, by Don Mattingly in 1987.

200: Adam Wainwright registered the 200th win of his career on Monday, and he did it with a vintage outing, going seven scoreless. At 42 years and 19 days old, he became the oldest Cardinals pitcher with a scoreless outing of at least seven innings. He surpassed a 41-year, 210-day old Jim Kaat, who threw a 10-inning shutout on June 4, 1980.

Birthdays are important: George Springer celebrated his birthday in style on Tuesday with a leadoff home run. At 34 years old, Springer is tied for the second-oldest player since 1901 with a leadoff homer on his birthday, with Brandon Phillips on June 28, 2015. Only Shin-Soo Choo was older, on his 37th birthday on July 13, 2019, in a game when Springer was the opposing leadoff hitter.

Historic leadoff spot production, times two: Mookie Betts and Ronald Acuña Jr. each have 39 home runs this season, tied for the most out of the leadoff spot in a season, with 2019 George Springer and 2006 Alfonso Soriano. But that’s not all. Betts is up to 103 RBIs, tied with 2017 Charlie Blackmon for the most RBIs out of the leadoff spot in a season (RBIs an official stat since 1920). Acuña is right behind with 100, tied with 2000 Darin Erstad for next on the list. We’re going to see numbers this season that we’ve never had atop the order from multiple players.

Twice the power: Acuña had two homers on Tuesday, giving him the aforementioned total of 39. He’s just one home run shy of the fifth 40-homer, 40-stolen base season, though of course his totals have been unprecedented since 30-60 (and even 29-59). Tuesday was his 13th career multi-homer game out of the leadoff spot, three more than anyone else before turning 26. Betts is the all-time career leader in such games, with 26.

Next-level stretch: With his seven hitless innings on Tuesday, Blake Snell has 179 strikeouts and just 19 runs allowed in his last 22 starts. He’s the first pitcher with at least 160 strikeouts and fewer than 20 runs allowed in a 22-game span (since 1901). Snell has a 1.26 ERA in his last 22 starts. The only other pitcher with an ERA that low in a single-season 22-start span since the mound was lowered (1969)? 2015 Jake Arrieta, who won NL Cy Young honors.

No-hit bids beware: With Rockies/Padres on Tuesday, Giants/Rockies on Friday, A’s/Astros on Sept. 13 and Brewers/Yankees on Sept. 10, four no-hit bids were broken up in the ninth inning or later in a 10-day span. That’s the shortest span in at least the expansion era (since 1961) for four no-hit bids to be broken up in the ninth or later, per Elias. The prior shortest such span was 18 days. As part of this, the Rockies both had a no-hit bid broken up in the ninth and broke one up in the ninth in a five-day span. They’re the third team in the expansion era to play two games with no-hit bids broken up in the ninth or later in a week’s span, whether on the pitching side, batting side or one of each. They joined the Blue Jays from April 23-28, 1989, both on the batting side and Toronto on Sept. 24-30, 1988, both on the pitching side.

Record-setting rookie: With two stolen bases on Wednesday, Corbin Carroll became the first rookie in MLB history with at least 20 homers and 50 stolen bases in a season. And then he hit his 25th home run of the year in the same game, raising the bar even higher. It’s the fourth time a player has had at least 25 home runs and 50 stolen bases in a season at age 23 or younger, along with 2007 Hanley Ramírez, 1974 César Cedeño and 1973 Cedeño.

Close race: Entering the weekend, the Astros lead the AL West by half a game over both the Mariners and Rangers. This is the first time that three teams in the same division were all within half a game or fewer of first place with all having 10 games or fewer left to play, since divisions began (1969), per Elias. In other words, this is the tightest three-team divisional race we’ve ever seen this late in a season.

And still unswept: Teams enter each series trying to win the series, but even just avoiding being swept is worth noting. To that end, the Orioles have now gone 88 straight series without being swept, entering the weekend. That’s the third-most consecutive series of multiple games without being swept, per Elias. They trail only the 1942-44 Cardinals (125) and 1903-05 Giants (106).