Fifteen games fill the September 13 schedule, starting at 12:10 PM ET in Detroit and closing with the Padres and Giants at Oracle Park. The division story sits at Truist Park, where Atlanta leads Philadelphia by six games in the NL East and has already taken nine of the twelve meetings. Pitching supplies most of the rest. Cam Schlittler (2.01 ERA), Dylan Cease (12.7 strikeouts per nine) and Chase Burns (2.73 ERA) all take the ball before mid-afternoon, and the lineups in front of them range from the best on-base offense in baseball to one that ranks 30th in scoring. The American League Wild Card group keeps several other games relevant, with Toronto, Texas and Baltimore all within three games of a position. The White Sox, who lead the AL Central, had not listed a probable starter when the day's data was collected.
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Atlanta's home record meets Philadelphia's rotation problem
Six games separate the Braves and Phillies at the top of the NL East, and the head-to-head record has been more lopsided than that gap suggests: Atlanta has won nine of twelve. The Braves are 51-26 at Truist Park. Philadelphia has handled the road well enough at 41-33, but has lost three straight and gone 3-7 across its last ten.
The probable starters split along an interesting line. Grant Holmes has the far better ERA, 3.46 to Andrew Painter's 5.71, though his 4.60 FIP is considerably less flattering than his run prevention. Painter's underlying numbers sit closer to his results — a 4.78 FIP and 1.55 home runs allowed per nine, a profile that travels badly into a lineup ranked fifth in the majors in slugging.
If either starter exits early, the difference grows. Atlanta's bullpen ranks third in ERA at 3.33 and second in WHIP, while Philadelphia's relievers rank 21st at 4.31. The Phillies still hold the second National League Wild Card spot by a game and a half, so the division deficit is not the only thing at stake for them in this series.
Chase Burns takes a 2.73 ERA into Milwaukee's league-best on-base attack
Cincinnati's best starter draws the most demanding lineup on the schedule. Milwaukee leads all of baseball with a .342 on-base percentage and ranks second in scoring at 5.20 runs per game, and it does so almost without power — 144 home runs place the Brewers 28th. Burns has answered that kind of profile all season with a 2.73 ERA over 27 starts, a 3.09 FIP that supports the ERA, and 10.7 strikeouts per nine.
Everything around him is less encouraging. The Reds have lost five in a row while Milwaukee has won five, and the Brewers are 52-25 at American Family Field, the strongest home mark on the slate. Cincinnati's bullpen ranks 26th in ERA and issues 4.9 walks per nine, which makes the innings after Burns a real concern against an offense built on reaching base. Milwaukee has won nine of the twelve meetings.
The Reds' own offense is a curiosity: 198 home runs rank third in MLB, but a .230 average and a 29th-ranked OBP mean that power tends to arrive with the bases empty.
Sixteen games apart in the standings, and the Mets lead the season series
Nothing about the records suggests a close matchup at Yankee Stadium. The Yankees are 85-63 and hold the top AL Wild Card position by 10.5 games; the Mets are 69-79 and 11 games from a National League place. Yet New York's NL club leads the season series 3-2, and both teams have won seven of their last ten.
Cam Schlittler has been the more complete starter by every supplied measure: a 2.01 ERA that ranks fifth in the qualified pool, a 0.92 WHIP, 2.1 walks per nine, and 178.2 innings across 30 starts. Christian Scott misses bats at nearly the same rate, 10.9 strikeouts per nine, but rarely finishes six innings — his quality-start rate is 10 percent through 21 outings.
That gap in length matters more than usual here, since neither bullpen is a weakness. The Yankees rank second in relief ERA at 3.16 and third in WHIP; the Mets are ninth at 3.83. Both offenses lean on the home run, with New York's AL club second in MLB at 202 and the Mets seventh at 188.
Dylan Cease and the lowest-scoring offense in the majors
Toronto sits a game out of a Wild Card position and Baltimore three, which gives an AL East meeting between two sub-.500 teams more weight than the records imply. The Blue Jays are 74-75, the Orioles 72-77.
Cease has the best strikeout rate of any starter scheduled, 12.7 per nine, third in the qualified pool, along with a 2.40 ERA and a 2.47 FIP that agrees with it. The backdrop is unusual: Toronto averages 4.03 runs per game, last in MLB, and ranks 27th in OPS. The Blue Jays have stayed in the race on run prevention, and their bullpen's 3.66 ERA ranks seventh.
Trevor Rogers is a quieter case on the other side. A 4.15 ERA reads as ordinary; a 3.44 FIP and 2.2 walks per nine do not, and he has turned in quality starts in 52 percent of his 27 outings, the kind of length Baltimore's bullpen (3.88 ERA, 11th) does not strictly require but benefits from. The Orioles also score more than their hosts, 4.50 runs per game to 4.03. Toronto has won five of the nine meetings.
The Dodgers are rolling, but the pitching edge belongs to Miami
Los Angeles has won eight of its last ten and owns the second-best OPS in baseball at .757, with a .336 on-base percentage that trails only two clubs. The starting matchup, however, favors the home side. Eury Pérez has a 3.94 ERA and a 4.04 FIP over 26 starts and has completed six innings in 42 percent of them.
Emmet Sheehan's profile is more volatile. He strikes out 10.5 per nine, but he has allowed 1.87 home runs per nine — the highest rate among the day's listed probable starters — and has reached the quality-start threshold in only 24 percent of his 21 turns.
Miami has been a different team at loanDepot park, 44-33 there against a 73-76 overall record, and leads the season series 3-2. The counter-argument is recent form: the Marlins have gone 3-7 in their last ten while the Dodgers are 43-30 away from home. The bullpens are close, Los Angeles 10th in ERA and Miami 17th, with nearly identical WHIPs.
Other games to follow
Rockies at Tigers (12:10 PM ET) — Colorado's offense and Colorado's record do not match. The Rockies rank sixth in runs per game at 4.70 yet sit at 55-93, with a 25-52 road record and six straight losses. Detroit has won three in a row. Both probable starters show wide ERA-FIP splits: Gabriel Hughes has a 5.81 ERA against a 3.82 FIP, while Jackson Jobe's 4.45 ERA sits well under his 5.15 FIP through six starts and 28.1 innings.
Angels at Nationals (1:35 PM ET) — the third-highest scoring offense in the majors against the 30th-ranked OPS. Washington averages 5.11 runs and ranks second in slugging; the Angels are last at .680. Neither starter has controlled damage, with Grayson Rodriguez at a 6.28 ERA and Jake Irvin at 5.52, and Washington's bullpen ranks 29th. The Nationals won the first two meetings.
Astros at Rays (1:40 PM ET) — two division leaders with little else in common. Houston tops the AL West at 75-74; Tampa Bay leads the AL East at 89-59 and is 49-25 at home. Hayden Wesneski has been sharp in a limited eight-start sample (3.35 ERA, 1.03 WHIP, 45.2 innings), while Freddy Peralta's 4.82 ERA and 28 percent quality-start rate come across far more volume.
Guardians at Twins (2:10 PM ET) — Joe Ryan's command against Tanner Bibee's innings. Ryan has the better numbers almost everywhere: a 3.68 ERA, a 3.48 FIP, 10.1 strikeouts per nine and 1.9 walks, the lowest walk rate among the day's probable starters. Bibee answers with length, 30 starts and a 57 percent quality-start rate. Cleveland's bullpen ranks sixth in ERA against Minnesota's 25th, which matters against a lineup scoring 4.60 per game to the Guardians' 4.07. Minnesota leads the season series 7-5.
White Sox at Cardinals (2:15 PM ET) — the AL Central leader arrives without a listed starter. Chicago is 76-72 and in first place, though no probable had been announced when this preview was prepared. Michael McGreevy takes the ball for St. Louis with the lowest strikeout rate of any starter scheduled, 6.2 per nine, paired with a 3.92 ERA and quality starts in 54 percent of his 28 turns.
Pirates at Cubs (2:20 PM ET) — baseball's most productive offense is at Wrigley Field. Chicago leads MLB in runs per game (5.34), OPS (.771), slugging and home runs (206), and holds the top NL Wild Card spot. Pittsburgh is not far behind in on-base terms, fourth at .330. Matthew Boyd and Bubba Chandler have similar ERAs; the separation is command, where Boyd's 2.7 walks per nine outclass Chandler's 4.5.
Royals at Red Sox (3:05 PM ET) — the best bullpen in the majors against the 28th-ranked one. Boston's relievers lead MLB in both ERA (3.12) and WHIP (1.17), while Kansas City's rank 28th and 29th. Payton Tolle has the lower ERA and the better strikeout rate at 10.4 per nine, though Noah Cameron's 3.62 FIP sits closer to Tolle's than the ERA gap implies. The Royals are 27-47 on the road.
Mariners at Athletics (4:05 PM ET) — the season series is even at 6-6. The Athletics are 60-89 but have won seven of their last ten, better than Seattle's 5-5. Bryce Miller holds the edge in walks (2.5 per nine) and WHIP, though his 1.58 home runs per nine is a real vulnerability in this park. Oakland's relief corps ranks last in both ERA (5.44) and WHIP. Seattle is five games from the AL West lead and five from a Wild Card place.
Rangers at Diamondbacks (4:10 PM ET) — two starters whose ERAs outrun their FIPs. Eduardo Rodriguez has a 2.55 ERA against a 3.75 FIP; Cal Quantrill's 2.89 ERA sits opposite a 4.00 FIP. Neither misses many bats, at 6.7 and 6.8 strikeouts per nine. Arizona is a game and a half from a National League Wild Card position, Texas two games from an American League one.
Padres at Giants (7:20 PM ET) — San Diego has won six straight and eight of twelve meetings. Nick Pivetta's line stands out — a 1.48 FIP, a 0.95 WHIP and no home runs allowed — but it covers five starts and 21 innings, too small a sample to treat as established. Logan Webb offers the opposite: 26 starts, 155.2 innings and a 65 percent quality-start rate, with a 4.10 ERA that his 3.45 FIP undercuts. San Diego's bullpen ranks fourth in ERA.
What stands out across the 15-game schedule
Most of the day's best pitching works in the afternoon, and each assignment asks something different. Schlittler faces a lineup that trails his team by 16 games but has won the season series. Cease throws for the lowest-scoring offense in the majors. Burns tries to keep a 93-win club from adding to a lead it has held all season.
The standings pressure is concentrated in the American League. Toronto, Texas and Baltimore are all within three games of a Wild Card position, Cleveland is holding one, and Houston leads the AL West at one game over .500. The National League divisions are closer to settled, which shifts the weight to a Wild Card group where Chicago, Philadelphia, San Diego and Arizona are separated by a few games.
One game still carries an incomplete pitching picture. The White Sox, alone among the day's division leaders in this position, had not posted a probable starter when the data was collected, which leaves the Busch Stadium matchup half-formed at publication.
