Marcus Semien's home run props present a compelling under opportunity with a devastating 4-28-0 record (12.5% overs) and massive -76.1% ROI on overs. His 0.12 average sits 0.4 homers below typical lines, creating consistent value on the under side with +67.0% ROI.
Expert Analysis
The numbers tell a stark story about Marcus Semien's power decline. Averaging just 0.12 home runs per game against lines typically set around 0.53, Semien has become one of the most reliable under plays in baseball. This isn't variance - it's a fundamental shift in his offensive profile. The 14-game under streak within this sample highlights how consistently he's falling short of market expectations. His age-33 season appears to have marked a clear transition from the 33-homer threat he once was to a contact-first player whose power has evaporated. The market hasn't fully adjusted, continuing to price him based on past performance rather than current reality. What makes this trend particularly trustworthy is its consistency across different contexts and the massive sample size showing no signs of regression to historical norms. Semien's swing mechanics and approach suggest this power decline isn't temporary - he's prioritizing contact and batting average over launch angle optimization. The 32-game sample provides robust evidence that oddsmakers are slow to adjust their models for aging curves, especially for players with strong track records.
Betting Verdict
UNDER with HIGH confidence. Marcus Semien's home run props offer exceptional value on the under side, supported by overwhelming statistical evidence and clear signs of age-related power decline. The ideal conditions are any standard game where his line sits above 0.3, which happens frequently due to market inefficiency. The main risk is a hot streak temporarily inflating his numbers, but even that wouldn't justify the current pricing structure given his fundamental offensive changes.
Performance vs Line
Game Log (Last 15 Games)
| Date | Opp | Line | Actual | +/- | Result |
|---|---|---|---|---|---|
| 2024-09-29 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-09-27 | OPP | 0.5 | 1.0 | +0.5 | OVER |
| 2024-09-05 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-09-02 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-08-30 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-08-13 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-08-11 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-08-06 | OPP | 1.5 | 0.0 | -1.5 | UNDER |
| 2024-08-04 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-08-02 | OPP | 0.5 | 1.0 | +0.5 | OVER |
| 2024-07-30 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-07-29 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-07-27 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-07-23 | OPP | 0.5 | 0.0 | -0.5 | UNDER |
| 2024-07-22 | OPP | 0.5 | 1.0 | +0.5 | OVER |
Key Splits
Home vs Away
Favorite vs Underdog
Recent Trend
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Compare SportsbooksFrequently Asked Questions
What is Marcus Semien's Home Runs prop record all games?
Marcus Semien has gone 4-28-0 on home run overs across 32 games, hitting just 12.5% of his overs. This represents one of the worst over rates among qualified players, with unders cashing at an 87.5% clip during this extended sample.
Should I bet OVER or UNDER on Marcus Semien Home Runs all games?
Bet under on Marcus Semien's home runs with high confidence. His 0.12 average is consistently below market lines around 0.53, creating reliable value. The 67% ROI on unders and 4-28 record provide strong statistical backing for this approach.
What's Marcus Semien's average Home Runs all games?
Marcus Semien averages 0.12 home runs per game, sitting 0.4 homers below typical lines of 0.53. This massive gap between performance and market pricing creates the foundation for the under's profitability and explains the 87.5% under rate.
How reliable is this trend?
Bet Marcus Semien home run unders when his line exceeds 0.3, which happens regularly due to market inefficiency. Standard game conditions work best - avoid playoff or high-leverage spots where small samples might create temporary variance in his approach.