MLB Betting — Performance Report

Generated 2026-04-27 | Date range: all → 2026-04-27 | 408 settled bets (92 sized)

📊 Interpretive Summary

408 settled bets | 92 sized | 5+ bet threshold for grade/type breakdowns

All tracked (408 bets): -27.49 units  |  ROI -7.2%

Sized only (92 bets): +0.45 units  |  ROI +0.7%

▲ Sizing discipline: sized bets outperform all tracked bets


Grade ROIs (5+ bet threshold):

   Grade A: +8.9% (80 bets)

   Grade B: -10.8% (328 bets)

✓ Grade hierarchy A>B>C ordering confirmed


Bet type performance (5+ bet threshold):

   Moneyline: +81.6% ROI  |  6 bets  |  +2.85 units

   Run Line: +30.0% ROI  |  44 bets  |  +8.39 units

   Batter Hits: +11.9% ROI  |  10 bets  |  +1.19 units

   Pitcher Hits Allowed: +10.0% ROI  |  41 bets  |  +4.09 units

   Pitcher Outs: +9.7% ROI  |  28 bets  |  +2.72 units

   K Prop: -11.6% ROI  |  58 bets  |  -6.72 units  ★ HIGH VOLUME LOSER

   Batter H+R+RBI: -16.8% ROI  |  174 bets  |  -29.21 units  ★ HIGH VOLUME LOSER

   Total: -28.8% ROI  |  41 bets  |  -9.79 units  ★ HIGH VOLUME LOSER


⚠ Red flags:

   Batter H+R+RBI: 174 bets, ROI -16.8% — strongly negative

   Total: 41 bets, ROI -28.8% — strongly negative

Section A — Headline Summary

Sized only = FULL/HALF/QRTR game bets; All tracked includes unsized props.

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
All tracked408210196251.7%-11052.5%-27.49-7.2%
Sized only924446248.9%-5133.7%+0.450.7%

Section B — Bet Type (all tracked)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Run Line442717061.4%-4933.1%+8.3930.0%
Pitcher Hits Allowed412615063.4%-13056.5%+4.0910.0%
Moneyline633050.0%+20133.2%+2.8581.6%
Pitcher Outs281612057.1%-2419.1%+2.729.7%
Batter Hits1082080.0%-25171.5%+1.1911.9%
F5 ML *10100.0%+16537.7%-1.00-100.0%
K Prop583028051.7%-13457.3%-6.72-11.6%
Total411425235.9%-9548.6%-9.79-28.8%
Batter H+R+RBI1748391047.7%-13557.4%-29.21-16.8%
NRFI *312033.3%
YRFI *2200100.0%

Section B — Bet Type (sized only)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Run Line442717061.4%-4933.1%+8.3930.0%
Moneyline633050.0%+20133.2%+2.8581.6%
F5 ML *10100.0%+16537.7%-1.00-100.0%
Total411425235.9%-9548.6%-9.79-28.8%

Section C — Bet Type × Grade (all tracked)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Batter H+R+RBI | A291514051.7%-13858.0%-3.23-11.1%
Batter H+R+RBI | B1456877046.9%-13457.3%-25.98-17.9%
Batter Hits | B1082080.0%-25171.5%+1.1911.9%
F5 ML | B *10100.0%+16537.7%-1.00-100.0%
K Prop | A22139059.1%-14058.4%+0.180.8%
K Prop | B361719047.2%-13156.7%-6.91-19.2%
Moneyline | B633050.0%+20133.2%+2.8581.6%
NRFI | B *312033.3%
Pitcher Hits Allowed | B412615063.4%-13056.5%+4.0910.0%
Pitcher Outs | B281612057.1%-2419.1%+2.729.7%
Run Line | A28208071.4%-4229.6%+8.8545.4%
Run Line | B1679043.8%-6338.5%-0.46-5.4%
Total | A *1100100.0%-10150.2%+0.4999.0%
Total | B401325234.2%-9448.5%-10.29-30.7%
YRFI | B *2200100.0%

Section C — Bet Type × Grade (sized only)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
F5 ML | B *10100.0%+16537.7%-1.00-100.0%
Moneyline | B633050.0%+20133.2%+2.8581.6%
Run Line | A28208071.4%-4229.6%+8.8545.4%
Run Line | B1679043.8%-6338.5%-0.46-5.4%
Total | A *1100100.0%-10150.2%+0.4999.0%
Total | B401325234.2%-9448.5%-10.29-30.7%

Section D — Odds Band Summary

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
≤ -150774829062.3%-17163.1%-0.74-1.0%
-149 to -1251628181050.0%-13657.6%-21.41-13.9%
-124 to -1051155459247.8%-11653.6%-9.38-9.1%
-104 to +10418810044.4%-2318.8%-3.04-17.9%
+105 to +1241486057.1%+11346.9%+2.9322.6%
+125 to +149624033.3%+13742.1%-0.68-12.4%
≥ +1501165054.5%+18235.5%+4.8260.2%

Section E — Grade × Odds Band

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
A | ≤ -15013103076.9%-15761.1%+3.4326.4%
A | -149 to -125392118053.8%-13757.7%-3.31-9.6%
A | -124 to -10518117061.1%-11754.0%+1.369.4%
A | -104 to +104 *321066.7%+3474.8%+0.4919.8%
A | +105 to +124 *1100100.0%+11346.9%+1.13113.0%
A | +125 to +149 *321066.7%+14141.5%+1.8260.7%
A | ≥ +150 *321066.7%+15738.9%+1.3855.0%
B | ≤ -150643826059.4%-17463.5%-4.17-6.5%
B | -149 to -1251236063048.8%-13657.5%-18.09-15.2%
B | -124 to -105974352245.3%-11553.6%-10.74-12.1%
B | -104 to +1041569040.0%-3425.6%-3.53-24.3%
B | +105 to +1241376053.8%+11346.8%+1.8015.0%
B | +125 to +149 *30300.0%+13442.8%-2.50-100.0%
B | ≥ +150844050.0%+19134.3%+3.4462.6%

Section F — Bet Type × Odds Band

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Batter H+R+RBI | ≤ -150361917052.8%-15961.3%-5.08-14.1%
Batter H+R+RBI | -149 to -125904347047.8%-13557.4%-14.89-16.5%
Batter H+R+RBI | -124 to -105472126044.7%-11854.1%-8.25-17.5%
Batter H+R+RBI | -104 to +104 *10100.0%-10350.7%-1.00-100.0%
Batter Hits | ≤ -1501082080.0%-25171.5%+1.1911.9%
F5 ML | ≥ +150 *10100.0%+16537.7%-1.00-100.0%
K Prop | ≤ -15015123080.0%-15560.8%+4.7131.4%
K Prop | -149 to -125321319040.6%-13958.1%-9.71-30.3%
K Prop | -124 to -1051055050.0%-11753.9%-0.72-7.2%
K Prop | +125 to +149 *10100.0%+12943.7%-1.00-100.0%
Moneyline | ≥ +150633050.0%+20133.2%+2.8581.6%
Pitcher Hits Allowed | ≤ -1501486057.1%-16261.8%-1.12-8.0%
Pitcher Hits Allowed | -149 to -12518126066.7%-13757.8%+2.8515.8%
Pitcher Hits Allowed | -124 to -105752071.4%-11754.0%+2.2832.6%
Pitcher Hits Allowed | +105 to +124 *211050.0%+11047.7%+0.084.0%
Pitcher Outs | ≤ -150 *211050.0%-17463.6%-0.45-22.4%
Pitcher Outs | -149 to -125532060.0%-13657.6%+0.183.6%
Pitcher Outs | -124 to -105651083.3%-11653.6%+3.2954.8%
Pitcher Outs | -104 to +104523040.0%-2117.2%-0.98-19.6%
Pitcher Outs | +105 to +124954055.6%+11546.5%+1.6818.7%
Pitcher Outs | +125 to +149 *10100.0%+12843.9%-1.00-100.0%
Run Line | -149 to -12517107058.8%-13557.4%+0.161.9%
Run Line | -124 to -1051495064.3%-11653.6%+2.7632.5%
Run Line | -104 to +104 *211050.0%+10149.8%+0.000.0%
Run Line | +105 to +124 *321066.7%+11247.2%+1.1758.7%
Run Line | +125 to +149 *422050.0%+14241.4%+1.3237.7%
Run Line | ≥ +150 *431075.0%+15838.8%+2.9684.7%
Total | -124 to -10531920231.0%-11252.8%-8.74-35.0%
Total | -104 to +1041055050.0%-4129.1%-1.06-11.7%

Section H1 — Game Bets vs Props

Props are always unsized. This section is unaffected by --sized-only.

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Game bets (ML/RL/Total/F5)924446248.9%-5133.7%+0.450.7%
All props combined316166150052.5%-12856.1%-27.93-8.8%

Section H2 — Prop Type Breakdown

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Pitcher Hits Allowed412615063.4%-13056.5%+4.0910.0%
Pitcher Outs281612057.1%-2419.1%+2.729.7%
Batter Hits1082080.0%-25171.5%+1.1911.9%
K Prop583028051.7%-13457.3%-6.72-11.6%
Batter H+R+RBI1748391047.7%-13557.4%-29.21-16.8%
NRFI *312033.3%
YRFI *2200100.0%

Section H3 — Prop Type × Grade

Grades only populate from the run that fixed the tracker bug onward.

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Batter H+R+RBI | A291514051.7%-13858.0%-3.23-11.1%
Batter H+R+RBI | B1456877046.9%-13457.3%-25.98-17.9%
Batter Hits | B1082080.0%-25171.5%+1.1911.9%
K Prop | A22139059.1%-14058.4%+0.180.8%
K Prop | B361719047.2%-13156.7%-6.91-19.2%
NRFI | B *312033.3%
Pitcher Hits Allowed | B412615063.4%-13056.5%+4.0910.0%
Pitcher Outs | B281612057.1%-2419.1%+2.729.7%
YRFI | B *2200100.0%

Codebook & Documentation

Reference guide for all columns, grades, sizing values, odds bands, and section descriptions used in this report.

Metric Columns

ColumnDescription
BetsNumber of settled bets in the bucket (result ≠ blank)
W / L / PWins, Losses, Pushes
Win%Wins ÷ (Wins + Losses) — pushes excluded from denominator
AvgOddsMean American odds across all bets in the bucket
BE%Break-even win rate implied by AvgOdds: 100/(100+odds) for + odds; |odds|/(|odds|+100) for − odds
Net UnitsSum of profit_loss_units across all bets; positive = profitable
ROI%Net Units ÷ Total Units Risked × 100. Sized bets use actual sizing (FULL=1.0, HALF=0.5, QRTR=0.25); unsized bets treated as 1.0 unit risked.
*Caution flag: bucket has fewer bets than the --min-sample threshold. Results may be noise.

Grade Scale

GradeScore ThresholdConditionsRecommendation
A≥ 10 pts0 FAILs, 0 WARNs, 0 risk flags, no contradictionBEST_PLAY
B≥ 8 pts0 FAILs — or Grade A capped by a WARN, risk flag, or ⚡ contradictionGOOD_ADD
C≥ 4 ptsIncluding B capped by ⚡ contradiction, or Books Agree FAILPASS
D≥ 2 ptsIncluding Model Edge hard-FAIL overridePASS
F< 2 ptsNegative or near-zero edge across checksHARD_FADE

Hard overrides: a Model Edge FAIL caps the grade at D regardless of other checks. A Books Agree FAIL caps at C (or D if model edge is also weak). C and D both map to PASS in v2_rec — Grade is strictly more informative for performance analysis.

V2 Framework — Six Checks

CheckNameWhat it evaluates
1Baby LineIs the line large enough to bet? Very low lines (e.g., HR at 0.5) fail — the juice exceeds any realistic edge.
2Model EdgeDoes our model project positive expected value vs the posted line? Primary scoring signal. FAIL hard-caps grade at D.
3Books AgreeDo ≥ 3 non-DK consensus books lean our direction? Requires ≥ 2 books to be actionable; ≥ 3 for A/B eligibility. FAIL caps grade at C/D.
4MatchupContext factors: pitcher handedness vs opposing lineup wRC+, park factors, platoon splits, head-to-head history.
5Role / InjuryIs the pitcher confirmed as the starter? Are there injury designations or lineup changes that undermine the bet premise?
6Game ScriptTotal-line alignment, weather, bullpen depth, and any flags that could affect scoring pace or game environment.

Each check returns PASS (+2 pts), WARN (0–+1 pts, may cap grade), FAIL (−2 pts), or N/A (0 pts, not applicable for this bet type). A ⭐ Top Pick badge requires Grade A + 100% consensus across ≥ 3 books + raw model edge ≥ 1.5 units above the line. A ⚡ contradiction flag is set when NRFI + Over (or YRFI + Under) are both Grade A/B in the same game — a logical conflict. Contradicted plays are demoted one grade tier.

Sizing Values

SizingUnits RiskedIncluded in "Sized Only"?
FULL1.00Yes
HALF0.50Yes
QRTR0.25Yes
(blank)1.00 (implicit)No — unsized

Props are always unsized and will not appear in sections A–F when --sized-only is active. Section H always shows full prop data regardless of the --sized-only flag.

Odds Bands

BandAmerican Odds Range
≤ −150Heavy favorites — high implied probability, low payout
−149 to −125Moderate favorites
−124 to −105Slight favorites
−104 to +104Near pick-em
+105 to +124Slight underdogs
+125 to +149Moderate underdogs
≥ +150Heavy underdogs — low implied probability, high payout

Section Descriptions

SectionWhat it answers
A — Headline SummaryOverall model performance: all tracked bets vs. sized-only bets side by side.
B — Bet TypePerformance split by bet type (NRFI, ML, Run Line, K prop, etc.), both all tracked and sized only.
C — Bet Type × GradeWithin each bet type, how each grade tier performs. Reveals whether A plays are actually better than B plays.
D — Odds Band SummaryPerformance across price buckets. Reveals if edge is concentrated at certain prices.
E — Grade × Odds BandDo A plays outperform at all prices, or only in a specific range?
F — Bet Type × Odds BandAre certain markets only working at certain prices?
H1 — Game Bets vs PropsSide-by-side headline for game bets vs all props combined. Always shows full data — unaffected by --sized-only.
H2 — Prop Type BreakdownPer-prop-type performance (K Props, H+R+RBI, Pitcher Outs, etc.) across all settled bets.
H3 — Prop Type × GradeWithin each prop type, how grade tiers compare. Use to validate that A props genuinely outperform B/C props.

ROI Denominator Rules