MLB Betting — Performance Report

Generated 2026-05-08 | Date range: all → 2026-05-08 | 839 settled bets (104 sized)

📊 Interpretive Summary

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

All tracked (839 bets): -64.72 units  |  ROI -8.0%

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: -3.1% (141 bets)

   Grade B: -9.0% (698 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: +27.3% ROI  |  9 bets  |  +2.46 units

   Run Line: +19.5% ROI  |  51 bets  |  +6.83 units

   F5 ML: +19.3% ROI  |  28 bets  |  +4.55 units

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

   Pitcher Hits Allowed: +10.8% ROI  |  74 bets  |  +8.01 units

   K Prop: -7.6% ROI  |  133 bets  |  -10.14 units

   Batter H+R+RBI: -13.3% ROI  |  395 bets  |  -52.62 units  ★ HIGH VOLUME LOSER

   Pitcher Outs: -18.3% ROI  |  75 bets  |  -13.74 units  ★ HIGH VOLUME LOSER

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

   No HR U1.5: -76.1% ROI  |  8 bets  |  -6.09 units


⚠ Red flags:

   No HR U1.5: 8 bets, ROI -76.1% — strongly negative

   Pitcher Outs: 75 bets, ROI -18.3% — 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 Pick1156045.5%-13657.7%-2.36-21.4%
Grade A (all)1417863055.3%-11854.1%-4.08-3.1%

Section T2 — Top Pick by Bet Type

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
⭐ Batter H+R+RBI *413025.0%-13557.5%-2.23-55.8%
⭐ K Prop743057.1%-13757.8%-0.13-1.8%

Section A — Headline Summary

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

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
All tracked839423409750.8%-10150.3%-64.72-8.0%
Sized only1045150350.5%-2721.3%+6.308.6%

Section B — Bet Type (all tracked)

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Pitcher Hits Allowed744727063.5%-12254.9%+8.0110.8%
Run Line513021058.8%-4732.0%+6.8319.5%
F5 ML281112547.8%+15439.3%+4.5519.3%
Moneyline633050.0%+20133.2%+2.8581.6%
Batter Hits13112084.6%-24871.2%+2.4618.9%
Batter Total Bases963066.7%-9749.2%+2.4627.3%
No HR U1.5817012.5%-11052.4%-6.09-76.1%
Total421525237.5%-9047.3%-9.29-26.9%
K Prop1337063052.6%-12455.3%-10.14-7.6%
Pitcher Outs753144041.3%-109.5%-13.74-18.3%
Batter H+R+RBI395195200049.4%-13357.1%-52.62-13.3%
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 | B341170171049.9%-13357.0%-41.93-12.3%
Batter Hits | B13112084.6%-24871.2%+2.4618.9%
Batter Total Bases | B963066.7%-9749.2%+2.4627.3%
F5 ML | B281112547.8%+15439.3%+4.5519.3%
K Prop | A573225056.1%-13757.9%-1.73-3.0%
K Prop | B763838050.0%-11453.2%-8.41-11.1%
Moneyline | B633050.0%+20133.2%+2.8581.6%
NRFI | B *312033.3%
No HR U1.5 | B817012.5%-11052.4%-6.09-76.1%
Pitcher Hits Allowed | B744727063.5%-12254.9%+8.0110.8%
Pitcher Outs | A *10100.0%-14358.8%-1.00-100.0%
Pitcher Outs | B743143041.9%-98.0%-12.74-17.2%
Run Line | A28208071.4%-4229.6%+8.8545.4%
Run Line | B231013043.5%-5334.8%-2.02-13.0%
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
≤ -1501408456060.0%-16762.5%-5.56-4.0%
-149 to -125324170154052.5%-13657.6%-28.43-9.0%
-124 to -105252112138244.8%-11653.7%-38.86-16.2%
-104 to +104311516048.4%+397.1%-2.46-8.3%
+105 to +124351619045.7%+11546.6%-0.93-2.8%
+125 to +149271214146.2%+13742.3%+2.5310.3%
≥ +150251110452.4%+17736.1%+9.0043.9%

Section E — Grade × Odds Band

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
A | ≤ -15022139059.1%-15661.0%-0.64-2.9%
A | -149 to -125784335055.1%-13657.6%-3.96-5.4%
A | -124 to -105311516048.4%-11854.2%-4.30-15.6%
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 | ≤ -1501187147060.2%-16962.8%-4.92-4.2%
B | -149 to -125246127119051.6%-13657.6%-24.47-10.1%
B | -124 to -10522197122244.3%-11653.7%-34.56-16.2%
B | -104 to +104281315046.4%-00.3%-2.96-11.0%
B | +105 to +124341519044.1%+11546.6%-2.06-6.5%
B | +125 to +149241013143.5%+13642.4%+0.723.3%
B | ≥ +1502299450.0%+17935.8%+7.6242.4%

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 -125204104100051.0%-13557.5%-22.53-11.0%
Batter H+R+RBI | -124 to -1051275869045.7%-11854.1%-20.03-15.8%
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 -125532060.0%-13557.5%+0.183.6%
Batter Total Bases | -124 to -105 *321066.7%-12054.5%+0.6521.5%
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 +1491054155.6%+14041.6%+2.6733.4%
F5 ML | ≥ +1501446440.0%+17336.7%+1.5512.4%
K Prop | ≤ -150291910065.5%-15560.8%+2.267.8%
K Prop | -149 to -125643430053.1%-13757.7%-5.04-7.9%
K Prop | -124 to -105341420041.2%-11753.9%-8.13-23.9%
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 -105817012.5%-11052.4%-6.09-76.1%
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 -10516124075.0%-11453.3%+6.6141.3%
Pitcher Hits Allowed | -104 to +104 *422050.0%+5265.9%+0.041.0%
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 +149936033.3%+13342.9%-1.99-22.1%
Run Line | ≤ -150 *1100100.0%-15660.9%+0.6464.1%
Run Line | -149 to -12519118057.9%-13657.6%-0.16-1.6%
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 +124633050.0%+11147.4%+0.306.1%
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)1356068746.9%-1110.2%-1.15-1.1%
All props combined704363341051.6%-11954.3%-63.57-9.0%

Section H2 — Prop Type Breakdown

GroupBetsWLPWin%AvgOddsBE%Net UnitsROI
Pitcher Hits Allowed744727063.5%-12254.9%+8.0110.8%
Batter Hits13112084.6%-24871.2%+2.4618.9%
Batter Total Bases963066.7%-9749.2%+2.4627.3%
K Prop1337063052.6%-12455.3%-10.14-7.6%
Pitcher Outs753144041.3%-109.5%-13.74-18.3%
Batter H+R+RBI395195200049.4%-13357.1%-52.62-13.3%
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 | B341170171049.9%-13357.0%-41.93-12.3%
Batter Hits | B13112084.6%-24871.2%+2.4618.9%
Batter Total Bases | B963066.7%-9749.2%+2.4627.3%
K Prop | A573225056.1%-13757.9%-1.73-3.0%
K Prop | B763838050.0%-11453.2%-8.41-11.1%
NRFI | B *312033.3%
Pitcher Hits Allowed | B744727063.5%-12254.9%+8.0110.8%
Pitcher Outs | A *10100.0%-14358.8%-1.00-100.0%
Pitcher Outs | B743143041.9%-98.0%-12.74-17.2%
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