The following MLB betting trends are a collection of analytical data, betting systems and strength ratings featured on VSiN and qualified for the MLB games of Saturday, September 21, 2024. This report is meant to emulate the process that Steve Makinen and other members of the VSiN Analytics team undergo when handicapping each day’s MLB board.

 

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AJ’s Angles

These are the top MLB betting trends and systems for today’s games, handpicked by VSiN Analyst AJ Makinen.

Trend: BOS is 6-21 (-17.32 units) in the months of August/September by starter Kutter Crawford
System Match: FADE BOSTON (+124 vs MIN)

Trend: FAVORITES are 16-5 (76.2%, +8.13 units) in the last 21 games in the BAL-DET series
– The R.O.I. on this trend is 38.7%
System Matches: PLAY BALTIMORE (-125 vs DET) 

Unusually poor pitching performances provide motivation for hosts
Home teams coming off unusually bad team pitching performances where they allowed 16 hits or more in a game are on a run of 284-239 (54.3%) for +40.51 units and an ROI of 7.7% since the start of the 2018 season.
System Matches (PLAY): NY METS (-118 vs. PHI)

Losing Streak Betting System #6:
Teams that have lost their last four games but are getting reasonably good pitching during the skid have been solid wagers in game #5, as those that allowed 6.0 RPG or fewer during the streak are on a 182-178 run (+32.84 units, ROI: 9.1%).
System Matches (PLAY): KANSAS CITY (-155 vs. SF)

DK MLB Betting Splits system #9: Over the last season-and-a-half, the average posted total in MLB games has been a touch over 8.5. In games with posted totals higher than that (nine or higher), majority bettors have done quite well when they’ve had the discipline to opt for Under the total. This group has gone 171-125 (57.8%) since the start of last season for +33.5 units and an ROI of 11.3%!
System Matches (PLAY UNDER): PIT-CIN

Strategies Using MLB DraftKings Betting Splits Data

One of the most touted features on the VSiN.com website, and a feature that we believe to be a fantastic resource for bettors is the betting splits pages. These are the pages that we have built utilizing the data that DraftKings so graciously provides to us, detailing the breakdowns of the money and ticket splits for point spreads, moneylines, and totals. 

In an article published on the VSiN.com website prior to opening day, Steve Makinen outlined 10 different systematic MLB betting trend strategies for successfully using the DK Betting Splits Data that developed in the 2023 season. Here are the systems and qualifying plays for today’s games as of 11:15 a.m. ET. These can and will change, so continue to track and qualify the systems up until first pitch for best usage.

To summarize the first half of 2024 season findings, the data sample contained 1449 games, and for the most part, it can be concluded that majority bettors again slowly dwindled their bankrolls over the course of the first 3-1/2 months, losing at least 2.7% in all categories. However, as you can see, they were noticeably improved over the full ’23 season in five of the six measured categories. These were the 2024 first half results:

–  Majority handle on sides: 792-628 (55.8%), -66.71 units – ROI -4.7% (2023 full season ROI was -10.7%)
–  Majority number of bets on sides: 823-612 (57.4%), -61.77 units – ROI -4.3% (2023 full season ROI was -8.9%)
–  Majority handle on run lines: 717-711 (50.2%). -83.92 units, ROI -5.9% (2023 full season ROI was -7.9%)
–  Majority number of bets on run lines: 661-777 (46%). -45.98 units – ROI -3.2% (2023 full season ROI was -7.9%)
–  Majority handle on totals: 689-688 (50%). -67.8 units – ROI -4.9% (2023 full season ROI was -2.6%)
–  Majority number of bets on totals: 692-662 (51.1%), -36.2 units, ROI -2.7% (2023 full season ROI was -8.3%)

As a general rule, acknowledging the approximate -5% returns on all majorities, if adopting the use of the betting splits this season, opt to fade majorities unless shown otherwise in one of the systems below to be a profitable follow angle.

DK MLB Betting Splits system #1: When 90% or more of the handle was on the home side of an MLB money line wager since the beginning of last season, this supermajority group has fared quite well, going 164-66 (71.3%) for +32.84 units and an ROI of +14.3%. This obviously beats the overall majority handle ROI return by almost 25%. If you see 90% or more of the handle backing a host in an MLB game for the rest of this season, it’s a solid bet to follow it.
System Matches (PLAY): SAN DIEGO (-290 vs. CWS)

DK MLB Betting Splits system #2: Majority bets groups have proven to be reasonably successful when not too many of them hop on a side since the beginning of last season, and in fact, the benchmark was 60%+. When the majority percentage figure of bets landed in the 51%-59% range, these groups have gone 352-297 (54.2%) for +14.32 units and an ROI of 2.2%. This isn’t the rate of return that a professional bettor is looking for, but it is a very solid number to maintain over the course of 1-1/2 baseball seasons and 649 games.
System Matches (SLIGHT PLAY ALL): PHILADELPHIA (+100 at NYM), ARIZONA (-105 at MIL) 

DK MLB Betting Splits system #3: Majority handle bettors have been sound over the last year-and-a-half when getting behind huge home favorites of -250 or higher. This group is 154-46 (77%) for +18.91 units and an ROI of 9.5%. This is a strong rate of return and a tremendous winning percentage, but with prices like this, things can turn fast so proceed with caution.
System Matches (PLAY ALL): SAN DIEGO (-290 vs. CWS), LA DODGERS (-285 vs. COL) 

DK MLB Betting Splits system #4: For as good as majority handle bettors have been on huge home favorites since the beginning of last season, they are equally as bad on heavy road favorites of -200 or higher. This group is 80-51 (61.1%) for -40.05 units and an ROI of -30.6%. This is a brutal way to drain a bankroll quickly.
System Matches (FADE): ATLANTA (-265 at MIA)

DK MLB Betting Splits system #5: Majority handle bettors have been at their worst overall in interleague games since the start of 2023, going 595-505 (54.1%) for -119.1 units and an ROI of -10.8%. This is over two full percentage points worse for return and an indication that bettors have trouble gauging the strengths/motivations of the teams when playing unfamiliar opponents.
System Matches (FADE ALL): KANSAS CITY (-155 vs. SF), CLEVELAND (-130 at STL), SAN DIEGO (-290 vs. CWS)

DK MLB Betting Splits system #6: There has been a unique system that has developed since the start of last season when majority handle betting groups backed home favorites with less wins on the season. This is a terrible scenario for bettors, as they are just 180-193 (48.3%) for -102.81 units and an atrocious ROI of -27.6%. There’s a lot of common sense to this not doing well, since lesser team is being favored just because it is at home or has a better starting pitcher working.
System Matches (FADE ALL): NY METS (-120 vs. PHI), TEXAS (-130 vs. SEA) 

DK MLB Betting Splits system #7: There has been distinct up-and-down pattern of performance for majority handle bettors by month since the beginning of last season. Combined March/April ROI has been -1.5%, May has been a brutal -12.5%, June has climbed back up to -5.3%. July has slipped to a consistent -15.1%, followed by an August return of -3.5%, and finally a September/October drain of -16.7%.
– Majority handle bettors in September/October games have gone just 244-215 (53.2%) for -76.5 units and an ROI of -16.7% since the start of the ’23 season.
System Matches: FADE ALL MAJORITY HANDLE TEAMS THIS MONTH

DK MLB Betting Splits system #9: Over the last season-and-a-half, the average posted total in MLB games has been a touch over 8.5. In games with posted totals higher than that (9 or higher), majority bettors have done quite well when they’ve had the discipline to opt for Under the total. This group has gone 171-125 (57.8%) since the start of last season for +33.5 units and an ROI of 11.3%!
System Matches (PLAY UNDER): PIT-CIN

MLB Bullpen Systems

The following MLB betting trend systems and qualifying plays are from the weekly update series on handicapping MLB teams using Steve Makinen’s bullpen strength ratings.

Fade better bullpen overpriced favorites of -190 or higher when win percentage difference of teams is <19%
In games of the 2023 regular season in which the team with the Steve Makinen better rated bullpen was listed as a favorite of -190 or higher and had a winning percentage less than 19% higher than the opponent, that team owned a 171-106 record, but for -84.47 units. That represented an ROI of -30.5%! So far in 2024, these teams are again losing money, 123-70 for -32.68 units and a ROI of -16.9%.
System Matches (FADE): ATLANTA (-265 at MIA), HOUSTON (-238 vs. LAA)

Back big favorites (-190 or more) with better bullpen ratings and winning percentage >=19% higher than opponent
A 2023 mid-season bullpen ratings discovery found that some big favorites do prove worthy of backing consistently, regardless of the high prices, because the games are absolute mismatches. The ROI on this angle finalized at +4.4% ROI last year. As of 9/20, the record of this angle in 2024 has settled at 102-39 for +1.48 units.
System Matches (PLAY ALL): LA DODGERS (-285 vs. COL), SAN DIEGO (-290 vs. CWS)

Overpriced better bullpen without big starting pitcher edge angle was ’23 regular season’s most lucrative system
In combining starting pitcher differences in looking at games with -190 favorites or higher, there’s was a huge opportunity to be selective in fading overpriced favorites. Specifically, when the starting pitcher difference between the better Steve Makinen rated bullpen team was less than 20, those big favorites went just 80-74, but for -87.21 units in the 2023 regular season! This angle is so far 73-44 since opening day 2024 and has lost -25.47 units, an ROI of -21.8%, solid results once again.
System Matches (FADE ALL): LA DODGERS (-285 vs. COL), SAN DIEGO (-290 vs. CWS)

Better bullpen underdog teams were solid wagers all season long
A frequent and profitable system in the 2023 season, and prior to that as well, arose when the team with the better SM Bullpen Ratings played as an underdog (or pick ’em). Money line underdog teams with better bullpen ratings for the season were 341-346 for +72.72 units. The ROI of this angle produced a healthy 10.6%. So far in the 2024 season, these teams have produced a 345-429 record, for -29.25 units (ROI -3.8%). This is well below standards historically for me but I am nowhere near ready to abandon it.
System Matches (PLAY ALL): PHILADELPHIA (+100 at NYM), DETROIT (+114 at BAL), SEATTLE (+110 at TEX), SAN FRANCISCO (+130 at KC)

Better bullpen underdog teams in -110 to +144 range have won nicely
Digging in deeper to the better bullpen underdog system above, when limiting the plays to those better bullpen underdogs (or pick ’em) in the -110 to +144 range, these teams have produced a 307-331 record, for +5.93 units (ROI 0.9%). I believe this angle has a bit more merit than the overall bullpen underdog system in that the better bullpens figure to be the difference in games that are expected to be highly competitive.
System Matches (PLAY ALL): PHILADELPHIA (+100 at NYM), DETROIT (+114 at BAL), SEATTLE (+110 at TEX), SAN FRANCISCO (+130 at KC)

Worse bullpen teams continue to struggle in extending winning streaks
In 2023, I found that fading teams with a lesser SM bullpen ratings that were looking to extend winning streaks was also a strong strategy. On two-game winning streaks, the teams with worse Steve Makinen Bullpen Ratings in a matchup were240-249 for -28.51 units, an ROI of -5.8%. Worse bullpen teams on 3+ game winning streaks finished the regular season with record of 99-119 for -16.61 units. The ROI on that system finished at -7.6%. For 2024 so far, these two-game teams have gone 177-223 for -49.52 units (-12.4% ROI). The three-game teams are 83-94 for -11.72 units (-6.6% ROI).
System Matches: 2-games – FADE BALTIMORE (-135 vs. DET),
3-games – FADE ARIZONA (-105 at MIL)

MLB Extreme Stats Systems

The following systems and qualifying plays are from the article titled MLB Extreme Stats Systems, detailing eight MLB betting trend systems for betting teams based upon noteworthy stats they accumulated in their previous game

Home teams off blowout losses are solid bets to rebound versus that same opponent
Teams playing at home against the same team after a blowout loss of seven runs or more have been solid wagers over the last 5+ seasons, going 365-344 (51.5%) for +31.25 units of profit. This represents an ROI of 4.4%.
System Matches (PLAY): NY METS (-118 vs PHI)

“9” is a magic run number for fading a team in the next game
Since 2018, it doesn’t matter if the team is playing at home or on the road, if they scored 9 runs or more in the previous contest, they are posting a winning record at 1682-1584 (51.5%), but oddsmaker overpricing has resulted in a loss of -211.76 units. This represents an ROI of -6.5%, which is significant in the grand scheme of baseball daily betting.
System Matches (FADE ALL): PHILADELPHIA (-102 at NYM), HOUSTON (-238 vs. LAA) 

Road teams that didn’t score well last game are a bad bet in the next outing
You’re going to want to consider fading teams playing on the road that scored two runs or fewer in their last contest. They have proven to be bankroll busting options over their last 4+ seasons. These road teams are just 1602-2050 (43.9%) for -182.66 units and an ROI of -5% since the start of the 2019 season.
System Matches (FADE ALL): WASHINGTON (+120 at CHC), TORONTO (+114 at TB), DETROIT (+105 at BAL), SAN FRANCISCO (+130 at KC), CHICAGO WHITE SOX (+235 at SD)

Home teams that did score well last game are also actually a bad bet in the next outing
Going back another season to 2018, home teams coming off a game in which they scored five runs or more are winning more often than not at 3387-2978 (53.2%), but they have been a loser for bettors at -463.87 units and an ROI of -7.3%.
System Matches (FADE ALL): CINCINNATI (-125 vs. PIT), BALTIMORE (-125 vs. DET), HOUSTON (-238 vs. LAA), LA DODGERS (-285 vs. COL)

Home team hitting slumps don’t last long
MLB home teams coming off a game in which they had four hits or fewer have rebounded quickly with a 956-829 (53.6%) record in the follow-up contest since the start of the 2018 season. This has resulted in a profit of +14.29 units for backers and an ROI of 0.8%.
System Matches (PLAY ALL): OAKLAND (+150 vs. NYY), NY METS (-118 vs. PHI)

Watch for home teams that didn’t record an extra base hit
Home teams that failed to record an extra base hit in their previous game bounce back with a 495-412 (54.6%) record in the next contest when at home in that same time span. The profit there is +29.30 units, for an ROI of 3.2%.
System Matches (PLAY ALL): KANSAS CITY (-155 vs. SF), OAKLAND (+150 vs. NYY)

Hitting a lot of home runs has carryover effect for home favorites
Home favorites coming off a game in which they hit four or more home runs have proven to be a very good investment for baseball bettors over the last 4+ seasons, going 307-155 (66.5%) for +39.05 units and an ROI of 8.5%!
System Matches (PLAY): BALTIMORE (-125 vs. DET) 

Unusually poor pitching performances provide motivation for hosts
Home teams coming off unusually bad team pitching performances where they allowed 16 hits or more in a game are on a run of 284-239 (54.3%) for +40.51 units and an ROI of 7.7% since the start of the 2018 season.
System Matches (PLAY): NY METS (-118 vs. PHI) 

MLB Streak Systems

The following systems and qualifying plays are from the midseason article titled Handicapping MLB Streaks, detailing 14 different systems for betting teams on winning or losing streaks.

Losing Streak Betting System #6:
Teams that have lost their last four games but are getting reasonably good pitching during the skid have been solid wagers in game #5, as those that allowed 6.0 RPG or fewer during the streak are on a 182-178 run (+32.84 units, ROI: 9.1%).
System Matches (PLAY): KANSAS CITY (-155 vs. SF) 

Losing Streak Betting System #7:
The matchup most likely to find a team ending a four-game losing streak is a non-divisional league matchup, as these teams are 152-169 (+5.03 units, ROI: 1.6%) in such games since the start of the 2021 season.
System Matches (PLAY): WASHINGTON (+120 at CHC)

Today’s MLB Strength Ratings

The following MLB betting trends are taken from today’s MAKINEN DAILY RATINGS page under the MLB tab on VSiN.com.

Today’s UNDERPRICED UNDERDOGS (15 points or more) according to the Makinen Strength Ratings projections:
System Matches: MIAMI +215 (+30 diff), PHILADELPHIA +100 (+17 diff), COLORADO +230 (+45 diff), DETROIT +114 (+25 diff), SAN FRANCISCO +130 (+24 diff), CHICAGO WHITE SOX +235 (+15 diff) 

Today’s UNDERPRICED FAVORITE (15 points or more) according to the Makinen Strength Ratings projections:
System Matches: CLEVELAND -130 (+20 diff) 

Today’s BIGGEST TOTAL PROJECTIONS FAVORING OVER (0.5 runs or more) according to the Makinen Strength Ratings projections:
System Matches: MIN-BOS OVER 7.5 (+1.2), NYY-OAK OVER 7.5 (+0.7) 

Today’s BIGGEST TOTAL PROJECTION FAVORING UNDER (0.5 runs or more) according to the Makinen Strength Ratings projections:
System Matches: COL-LAD UNDER 9 (-0.5) 

MLB Pitcher Situational MLB Betting Trend Spots

The following situational MLB betting trends and qualifying plays look at how today’s starting pitchers have performed in a similar spot over the last five years.

(955) ATLANTA (83-71) at (956) MIAMI (57-97)
Trend: ATL is 18-7 (+8.45 units) in road game starts by Max Fried in the las two seasons
System Match: PLAY ATLANTA (-265 at MIA) 

(957) PHILADELPHIA (92-62) at (958) NEW YORK-NL (85-69)
Trend: PHI is 16-7 (+9.16 units) in line range -115 to +115 with starter Ranger Suarez in the last four seasons
System Match: PLAY PHILADELPHIA (-102 at NYM)
Trend: Sean Manaea is 5-7 (-3.79 units) against NL East opponents in the last six seasons
System Match: FADE NY METS (-118 vs. PHI)

(959) ARIZONA (86-68) at (960) MILWAUKEE (88-66)
Trend: Aaron Civale is 19-9 (+2.52 units) in home night games as a favorite in the last six seasons
System Match: PLAY MILWAUKEE (-115 vs AZ) 

(961) COLORADO (59-95) at (962) LOS ANGELES-NL (92-62)
Trend: Cal Quantrill is 6-15 (-4.26 units) as an underdog of +150 or more in last five seasons
System Match: FADE COLORADO (+230 at LAD)

Trend: Walker Buehler has dominated lesser competition, going 21-3 (+13.70 units) against teams with a < 40% win pct since 2019
System Match: PLAY LA DODGERS (-285 vs. COL)

(965) MINNESOTA (81-73) at (966) BOSTON (76-78)
Trend: BOS is 6-21 (-17.32 units) in the months of August/September by starter Kutter Crawford
System Match: FADE BOSTON (+124 vs. MIN) 

(973) NEW YORK-AL (90-64) at (974) OAKLAND (67-87)
Trend: Carlos Rodon not good in -185 to -210 favorite line range, going 2-10 (-17.20 units) in the last six seasons
System Match: FADE NY YANKEES (*if they fall into this line range, -180 currently)

(975) SAN FRANCISCO (75-79) at (976) KANSAS CITY (82-72)
Trend: KC is 8-2 (+8.75 units) vs NL West teams with starter Brady Singer
System Match: PLAY KANSAS CITY (-155 vs. SF)

Series #24: Detroit at Baltimore, Fri 9/20-Sun 9/22
Trend: Favorites are 16-5 (76.2%, +8.13 units) in the last 21 games in the BAL-DET series
–  The ROI on this trend is 38.7%
System Matches: PLAY BALTIMORE (-125 vs. DET)

Team Specific Momentum Building/Letdown Angles

The following MLB betting trends and qualifying plays are from the article entitled MLB post-rivalry series betting opportunities

NO QUALIFYING MOMENTUM ANGLES TODAY (next one Monday 9/23)

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Steve Makinen
As one of the original founders of StatFox, Steve Makinen has been in the business of sports betting and data analysis for almost 25 years now. In his time in the industry, Steve has worked in a variety of capacities on both sides of the betting counter, from his early days of developing the StatFox business, to almost a decade of oddsmaking consulting for one of the world's leading sportsbooks, to his last seven years as Point Spread Weekly and Analytics Director with VSiN. Steve has always believed that number crunching and handicapping through foundational trends and systems is the secret to success and he shares this data with VSiN readers on a daily basis for all of the major sports.