Today we wrap up the work week and kick off the month of May with a loaded 15 game MLB slate to choose from. Let’s examine where smart money is leaning for a trio of matchups using our VSiN MLB Betting Splits, which are updated every 5 minutes and come directly from DraftKings and Circa Sports.
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2:20 p.m. ET: Arizona Diamondbacks at Chicago Cubs (-155, 7)
The Diamondbacks (16-14) just dropped two of three against the Brewers, falling 13-1 yesterday as +110 road dogs. On the other hand, the Cubs (19-12) just took two of three against the Padres, winning the series finale 5-4 as -105 road dogs.
In this late afternoon series opener, the Diamondbacks send out righty Zac Gallen (1-1, 3.14 ERA) and the Cubs go with fellow righty Colin Rea (3-1, 4.61 ERA).
This line opened with Chicago listed as a -135 home favorite and Arizona a +115 road dog.
Sharps have gotten down hard on the Cubs, steaming Chicago up from -135 to -155.
At Circa, Chicago is taking in 65% of moneyline bets but a whopping 89% of moneyline dollars, a notable “low bets, higher dollars” sharp bet discrepancy in their favor from the wiseguys in the desert.
Pro money has also sided with the Cubs on the run-line (-1.5 at +145), as Chicago is receiving 68% of spread bets and 83% of spread dollars at DraftKings.
The Cubs have correlative betting value as a favorite in a low total game (7), with the fewer amount of expected runs scored more likely to come from the “better” team who is expected to win.
Chicago has the better bats, hitting .261 with a .353 OBP and 169 runs scored compared to Arizona hitting.250 with a .308 OBP and 141 runs scored.
The Cubs also enjoy a “rest vs tired” advantage, as Chicago was off yesterday while the Diamondbacks played in Milwaukee and now travel to Chicago.
Rested home favorites coming off a day off with at least 5-cents of line movement in their favor, like the Cubs here, are 102-52 (66%) with a 5% ROI since 2025.
The Cubs are 11-5 at home. The Diamondbacks are 7-8 on the road.
7:10 p.m. ET: San Francisco Giants at Tampa Bay Rays (-145, 7.5)
The Giants (13-18) just got swept by the Phillies, dropping yesterday’s doubleheader 3-2 as +125 road dogs and 6-5 as +120 road dogs. Meanwhile, the Rays (18-12) just took two of three against the Guardians but failed to complete the sweep, dropping the series finale 3-1 as -105 road dogs.
In tonight’s series opener, the Giants turn to lefty Robbie Ray (2-3, 2.70 ERA) and the Rays go with fellow southpaw Shane McClanahan (2-2, 3.91 ERA).
This line opened with Tampa Bay listed as a -130 home favorite and San Francisco a +110 road dog.
Sharps have pounced on the Rays laying modest chalk at home, driving Tampa Bay up from -130 to -145.
At Circa, Tampa Bay is taking in 67% of moneyline bets and 88% of moneyline dollars, a sharp “low bets, higher dollars” split in their favor from the pros in Vegas.
Wiseguys have also come down in support of the Tampa Bay run-line (-1.5 at +150), as the Rays are receiving only 47% of spread bets but 79% of spread dollars at DraftKings, a notable “low bets, higher dollars” split in favor of the Rays winning by two runs or more.
Friday home favorites -150 or less who failed to make the playoffs the previous season, like the Rays here, are 54-32 (63%) with an 11% ROI since 2025.
The Rays have correlative betting value as a favorite in a low total game (7.5), with the fewer amount of expected runs scored more likely to come from the “better” team who is expected to win.
Tampa Bay has the edge at the plate, posting a .327 OBP with 137 runs scored compared to San Francisco posting a .293 OBP with 104 runs scored.
The Rays enjoy a massive “rest vs tired” advantage, as the Giants just played a doubleheader yesterday in Philadelphia while the Rays were off yesterday.
Rested home favorites coming off a day off with at least 5-cents of line movement in their favor are 102-52 (66%) with a 5% ROI since 2025.
Tampa Bay is 8-4 at home. San Francisco is 6-9 on the road.
9:40 p.m. ET: Chicago White Sox at San Diego Padres (-145, 8)
The White Sox (14-17) just swept the Angels, winning the series finale 3-2 in extra innings as -105 home dogs. On the other hand, the Padres (19-11) just dropped two of three against the Cubs, losing the series finale 5-4 as -115 home favorites.
In tonight’s Interleague series opener, the White Sox tap lefty Noah Schultz (1-1, 3.52 ERA) and the Padres rebuttal with righty German Marquez (3-1, 4.38 ERA).
This line opened with San Diego listed as a -135 home favorite and Chicago a +115 road dog.
Sharps have laid the wood with the Padres at home, driving San Diego up from -135 to -145 with several other shops touching as high as -150.
Pro money has also backed the Padres on the run-line (-1.5 at +145), as San Diego is receiving only 59% of spread bets but 80% of spread dollars at DraftKings, a notable “low bets, higher dollars” sharp split in favor of a Padres win by two runs or more.
San Diego had betting system value as an Interleague favorite, with the lack of familiarity benefiting the “better” team who is expected to win.
When both teams are coming off a day off, as is the case here, the home favorite is 122-69 (64%) with a 4% ROI since 2025.
San Diego is 4-0 in Marquez’s last four starts.
The Padres are 10-6 at home this season. The White Sox are 7-9 on the road.
