MLB Betting — Performance Report

Generated 2026-05-06 | Date range: all → 2026-05-06 | 784 settled bets (104 sized)

📊 Interpretive Summary

784 settled bets | 104 sized | 5+ bet threshold for grade/type breakdowns

All tracked (784 bets): -40.49 units  |  ROI -5.4%

Sized only (104 bets): +6.30 units  |  ROI +8.6%

▲ Sizing discipline: sized bets outperform all tracked bets


Grade ROIs (5+ bet threshold):

   Grade A: +0.4% (133 bets)

   Grade B: -6.5% (651 bets)

✓ Grade hierarchy A>B>C ordering confirmed


Bet type performance (5+ bet threshold):

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

   Batter Total Bases: +60.9% ROI  |  6 bets  |  +3.65 units

   F5 ML: +24.9% ROI  |  25 bets  |  +5.10 units

   Run Line: +24.2% ROI  |  47 bets  |  +7.52 units

   Batter Hits: +18.9% ROI  |  13 bets  |  +2.46 units

   Pitcher Hits Allowed: +8.4% ROI  |  72 bets  |  +6.03 units

   K Prop: -3.3% ROI  |  120 bets  |  -4.00 units

   Batter H+R+RBI: -10.1% ROI  |  367 bets  |  -36.98 units  ★ HIGH VOLUME LOSER

   Pitcher Outs: -17.2% ROI  |  74 bets  |  -12.74 units  ★ HIGH VOLUME LOSER

   Total: -26.9% ROI  |  42 bets  |  -9.29 units  ★ HIGH VOLUME LOSER

   No HR U1.5: -72.7% ROI  |  7 bets  |  -5.09 units


⚠ Red flags:

   Pitcher Outs: 74 bets, ROI -17.2% — strongly negative

   Total: 42 bets, ROI -26.9% — strongly negative

Section T — ⭐ Top Pick Performance

Top Pick = Grade A + 100% book consensus (≥3 books) + raw_diff ≥ 1.5 units. Run backfill_top_picks.py to populate historical rows.

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
⭐ Top Pick844050.0%-13757.8%-1.11-13.9%
Grade A (all)1337657057.1%-11653.8%+0.530.4%

Section T2 — Top Pick by Bet Type

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
⭐ Batter H+R+RBI *413025.0%-13557.5%-2.23-55.8%
⭐ K Prop *431075.0%-13958.1%+1.1228.0%

Section A — Headline Summary

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

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
All tracked784406371752.3%-10150.3%-40.49-5.4%
Sized only1045150350.5%-2721.3%+6.308.6%

Section B — Bet Type (all tracked)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Run Line472819059.6%-4430.5%+7.5224.2%
Pitcher Hits Allowed724527062.5%-12555.6%+6.038.4%
F5 ML251010550.0%+15639.1%+5.1024.9%
Batter Total Bases651083.3%-8144.8%+3.6560.9%
Moneyline633050.0%+20133.2%+2.8581.6%
Batter Hits13112084.6%-24871.2%+2.4618.9%
K Prop1206654055.0%-12355.1%-4.00-3.3%
No HR U1.5716014.3%-11052.4%-5.09-72.7%
Total421525237.5%-9047.3%-9.29-26.9%
Pitcher Outs743143041.9%-1211.0%-12.74-17.2%
Batter H+R+RBI367188179051.2%-13357.1%-36.98-10.1%
NRFI *312033.3%
YRFI *2200100.0%

Section B — Bet Type (sized only)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Run Line442717061.4%-4933.1%+8.3930.0%
F5 ML1265154.5%+16138.4%+4.3457.9%
Moneyline633050.0%+20133.2%+2.8581.6%
Total421525237.5%-9047.3%-9.29-26.9%

Section C — Bet Type × Grade (all tracked)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Batter H+R+RBI | A542529046.3%-13657.6%-10.69-19.8%
Batter H+R+RBI | B313163150052.1%-13357.0%-26.29-8.4%
Batter Hits | B13112084.6%-24871.2%+2.4618.9%
Batter Total Bases | B651083.3%-8144.8%+3.6560.9%
F5 ML | B251010550.0%+15639.1%+5.1024.9%
K Prop | A493019061.2%-13757.9%+2.885.9%
K Prop | B713635050.7%-11252.9%-6.88-9.7%
Moneyline | B633050.0%+20133.2%+2.8581.6%
NRFI | B *312033.3%
No HR U1.5 | B716014.3%-11052.4%-5.09-72.7%
Pitcher Hits Allowed | B724527062.5%-12555.6%+6.038.4%
Pitcher Outs | A *10100.0%-14358.8%-1.00-100.0%
Pitcher Outs | B733142042.5%-119.6%-11.74-16.1%
Run Line | A28208071.4%-4229.6%+8.8545.4%
Run Line | B19811042.1%-4731.9%-1.33-11.6%
Total | A *1100100.0%-10150.2%+0.4999.0%
Total | B411425235.9%-9047.2%-9.78-28.8%
YRFI | B *2200100.0%

Section C — Bet Type × Grade (sized only)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
F5 ML | B1265154.5%+16138.4%+4.3457.9%
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 | B411425235.9%-9047.2%-9.78-28.8%

Section D — Odds Band Summary

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
≤ -1501358154060.0%-16762.5%-5.49-4.1%
-149 to -125298162136054.4%-13657.6%-16.34-5.6%
-124 to -105234108124246.6%-11653.7%-28.30-12.7%
-104 to +104301416046.7%-00.4%-3.50-12.3%
+105 to +124341618047.1%+11546.6%+0.070.2%
+125 to +149241112147.8%+13742.3%+3.0814.3%
≥ +15024119455.0%+17836.0%+10.0051.3%

Section E — Grade × Odds Band

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
A | ≤ -15019127063.2%-15661.0%+0.723.8%
A | -149 to -125754233056.0%-13657.6%-2.71-3.8%
A | -124 to -105291514051.7%-11854.2%-2.30-9.0%
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 | ≤ -1501166947059.5%-16962.8%-6.22-5.4%
B | -149 to -125223120103053.8%-13657.6%-13.63-6.2%
B | -124 to -10520593110245.8%-11653.7%-26.00-13.2%
B | -104 to +104271215044.4%-44.0%-4.00-15.4%
B | +105 to +124331518045.5%+11546.6%-1.06-3.4%
B | +125 to +14921911145.0%+13642.4%+1.276.8%
B | ≥ +1502198452.9%+18135.6%+8.6250.7%

Section F — Bet Type × Odds Band

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Batter H+R+RBI | ≤ -150623329053.2%-15761.1%-8.06-13.0%
Batter H+R+RBI | -149 to -1251869888052.7%-13557.5%-15.01-8.1%
Batter H+R+RBI | -124 to -1051175760048.7%-11854.1%-11.91-10.2%
Batter H+R+RBI | -104 to +104 *20200.0%-10450.9%-2.00-100.0%
Batter Hits | ≤ -15013112084.6%-24871.2%+2.4618.9%
Batter Total Bases | -149 to -125 *3300100.0%-13857.9%+2.1872.7%
Batter Total Bases | -124 to -105 *211050.0%-11854.1%-0.16-8.0%
Batter Total Bases | ≥ +150 *1100100.0%+16338.0%+1.63163.0%
F5 ML | +105 to +124 *422050.0%+12344.8%+0.3210.7%
F5 ML | +125 to +149843157.1%+14141.5%+2.2237.1%
F5 ML | ≥ +1501345444.4%+17536.4%+2.5522.2%
K Prop | ≤ -15025178068.0%-15560.8%+2.9711.9%
K Prop | -149 to -125603327055.0%-13757.7%-2.79-4.7%
K Prop | -124 to -105291316044.8%-11753.9%-4.95-17.1%
K Prop | +105 to +124 *211050.0%+12244.9%+0.2412.0%
K Prop | +125 to +149 *422050.0%+12943.7%+0.5313.2%
Moneyline | ≥ +150633050.0%+20133.2%+2.8581.6%
No HR U1.5 | -124 to -105716014.3%-11052.4%-5.09-72.7%
Pitcher Hits Allowed | ≤ -150301812060.0%-16161.7%-0.94-3.1%
Pitcher Hits Allowed | -149 to -12521147066.7%-13857.9%+3.2215.3%
Pitcher Hits Allowed | -124 to -10515114073.3%-11453.4%+5.6837.9%
Pitcher Hits Allowed | -104 to +104 *312033.3%+3474.4%-1.00-33.3%
Pitcher Hits Allowed | +105 to +124 *312033.3%+11047.7%-0.92-30.7%
Pitcher Outs | ≤ -150523040.0%-17663.8%-1.92-38.4%
Pitcher Outs | -149 to -1251147036.4%-13958.2%-4.10-37.2%
Pitcher Outs | -124 to -10518711038.9%-11453.3%-4.90-27.2%
Pitcher Outs | -104 to +1041266050.0%+1785.7%+0.040.4%
Pitcher Outs | +105 to +12420911045.0%+11446.7%-0.88-4.4%
Pitcher Outs | +125 to +149835037.5%+13342.8%-0.99-12.4%
Run Line | -149 to -12517107058.8%-13557.4%+0.161.9%
Run Line | -124 to -1051596060.0%-11553.6%+1.7618.6%
Run Line | -104 to +104 *211050.0%+10149.8%+0.000.0%
Run Line | +105 to +124532060.0%+11147.3%+1.3032.6%
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 +1041165054.5%-2821.9%-0.55-5.7%

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)1275763747.5%-1210.6%+1.091.1%
All props combined657349308053.1%-11854.2%-41.58-6.3%

Section H2 — Prop Type Breakdown

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Pitcher Hits Allowed724527062.5%-12555.6%+6.038.4%
Batter Total Bases651083.3%-8144.8%+3.6560.9%
Batter Hits13112084.6%-24871.2%+2.4618.9%
K Prop1206654055.0%-12355.1%-4.00-3.3%
Pitcher Outs743143041.9%-1211.0%-12.74-17.2%
Batter H+R+RBI367188179051.2%-13357.1%-36.98-10.1%
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 | A542529046.3%-13657.6%-10.69-19.8%
Batter H+R+RBI | B313163150052.1%-13357.0%-26.29-8.4%
Batter Hits | B13112084.6%-24871.2%+2.4618.9%
Batter Total Bases | B651083.3%-8144.8%+3.6560.9%
K Prop | A493019061.2%-13757.9%+2.885.9%
K Prop | B713635050.7%-11252.9%-6.88-9.7%
NRFI | B *312033.3%
Pitcher Hits Allowed | B724527062.5%-12555.6%+6.038.4%
Pitcher Outs | A *10100.0%-14358.8%-1.00-100.0%
Pitcher Outs | B733142042.5%-119.6%-11.74-16.1%
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