Marcus Semien's total bases prop has been a goldmine for under bettors, hitting just 40% overs across his last 10 games with a brutal -1.0 differential below the 2.5 line. The under delivers a solid 14.6% ROI while overs hemorrhage at -23.6%, creating a clear fade opportunity.
Expert Analysis
Marcus Semien's total bases struggles stem from a perfect storm of declining production and inflated market expectations. Averaging just 1.5 total bases against a consistent 2.5 line reveals a fundamental disconnect between perception and reality. The 60% under rate isn't random variance—it reflects genuine regression in Semien's power output during this stretch. His longest under streak of three games suggests sustained periods of quiet production, while his maximum over streak caps at just two games, indicating limited ceiling. The -23.6% ROI on overs demonstrates how sharply the market has mispriced his recent form. This isn't a player experiencing bad luck on hard contact; the consistent underperformance across 10 games points to either mechanical issues, pitcher adjustments, or natural aging curve regression. The sample size provides meaningful insight into current form while the ROI differential creates exploitable value. Semien's reputation as a reliable veteran likely keeps lines elevated despite mounting evidence of diminished production, making this trend particularly sustainable for contrarian bettors.
Betting Verdict
LEAN UNDER with MEDIUM confidence. The 14.6% ROI advantage and consistent 1.5 average create clear value against the 2.5 line, though the sample size demands caution. Target games where Semien faces quality pitching or in pitcher-friendly environments to maximize edge. Primary risk is positive regression to career norms, but current form suggests continued struggles.
Performance vs Line
Game Log (Last 10 Games)
| Date | Opp | Line | Actual | +/- | Result |
|---|---|---|---|---|---|
| 2024-09-29 | OPP | 1.5 | 1.0 | -0.5 | UNDER |
| 2024-09-27 | OPP | 3.5 | 6.0 | +2.5 | OVER |
| 2024-09-05 | OPP | 1.5 | 2.0 | +0.5 | OVER |
| 2024-09-02 | OPP | 2.5 | 0.0 | -2.5 | UNDER |
| 2024-08-30 | OPP | 2.5 | 0.0 | -2.5 | UNDER |
| 2024-08-13 | OPP | 1.5 | 2.0 | +0.5 | OVER |
| 2024-08-11 | OPP | 2.5 | 0.0 | -2.5 | UNDER |
| 2024-08-06 | OPP | 1.5 | 0.0 | -1.5 | UNDER |
| 2024-08-04 | OPP | 4.5 | 0.0 | -4.5 | UNDER |
| 2024-08-02 | OPP | 3.5 | 4.0 | +0.5 | OVER |
Key Splits
Home vs Away
Favorite vs Underdog
Recent Trend
Find the Best Total Bases Prop Lines
Compare Marcus Semien props across top sportsbooks.
Compare SportsbooksFrequently Asked Questions
What is Marcus Semien's Total Bases prop record last 10 games?
Marcus Semien has gone over his total bases prop in just 4 of his last 10 games (40% rate), going under 6 times. He's averaging 1.5 total bases against a typical 2.5 line, showing consistent underperformance.
Should I bet OVER or UNDER on Marcus Semien Total Bases last 10 games?
Bet under on Marcus Semien's total bases props. The data strongly favors under bets with a 14.6% ROI compared to -23.6% on overs, backed by his 1.5 average significantly trailing the 2.5 line.
What's Marcus Semien's average Total Bases last 10 games?
Marcus Semien is averaging 1.5 total bases over his last 10 games, exactly 1.0 below the standard 2.5 line. This massive differential explains why unders hit 60% of the time with strong ROI.
How reliable is this trend?
Target Marcus Semien total bases unders when he faces above-average pitching or in pitcher-friendly ballparks. His current form creates the most value in challenging offensive environments where his diminished power is most exposed.