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PHI 3 · WSH 6 — how the graded markets landed
FINAL

Philadelphia Phillies @ Washington Nationals

Tue 9/15 · 5:45 PM CDT · forecast weather in the grade · ump: confirmed
TOTAL · UNDER 8.0 RUNS
C
C cards like this have won 52% under · market 49%
FIRST 5 INNINGS
no lean
model 46% over · market 47%
the letter is how far we sit from the market, not how sure we are
THE PICTURE — what's driving the 8-point gapsized against each other · measured against the line — a stat the market already prices can point opposite its usual read
Both teams below league average in home runs, last 30 games26%
The home starter walks 12.1% of batters, adjusted — a higher walk rate than average. Priced in, and it went too far — counts toward the under24%
Park & environment leans under17%
The away team allowing 3.7 runs a game, last 30 — below league average. Priced in, and it went too faragainst the under17%
Backup catcher starting16%
Market: Under 8.0 runs at -103 (pinnacle, quoted 4:30 PM CDT) · model expects ~8.3 runs · divergence 8 points — band C. lean, not edge-demonstrated C-band cutoffs fitted on OOF 2021-2024; the live record starts with this log. C cards in this market have won 52.2% of 2,317 out-of-sample grades (2021-2024), +1.0 points over break-even at the close. Not a betting-plan cell.
Frozen C at 8:15 AM CDT · the number held.
anchor Under 8.0 runs -103 → closed -103 · unchanged
SITUATIONAL CONDITIONSdetected for this game · not a grade input — anything that carries weight appears in THE PICTURE
High-scoring umpire
Honest row: grades cap at the band — extreme disagreement is as often our error as the market's. Moneyline gets no grade because our model hasn't beaten that market and says so. Graded against the line at grade time; the model was validated against closing lines. Weather from forecast; regrade if conditions flip.
Raw grade details (all passes)
[
 {
  "market": "f5_total",
  "pass_kind": "first",
  "graded_utc": "2026-09-15T13:15:18Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.4855415369353499,
  "p_shipped": 0.4433145392064814,
  "model_mu": 3.9871037939439633,
  "market_p": 0.46649484536082475,
  "divergence": 0.019046691574525154,
  "band": null,
  "anchor_line": 4.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-15T13:15:18Z",
  "lineup_known": 0,
  "ump_state": "unknown",
  "weather_kind": "forecast",
  "result": "won",
  "factors": [
   {
    "family": "offense",
    "phrase": "Both teams below league average in home runs, last 30 games",
    "share": 0.2988,
    "contribution": -0.16769,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_hr30",
     "a_platoon_miss"
    ]
   },
   {
    "family": "ump",
    "phrase": "No recent umpire zone reading against the league \u2014 graded on league-typical assumptions",
    "share": 0.2295,
    "contribution": -0.12879,
    "kind": "gap",
    "features": [
     "ump_rel_miss",
     "ump_acc_rel",
     "ump_bb_dev_sd"
    ]
   },
   {
    "family": "battery",
    "phrase": "The home team's catcher loses strikes on close pitches",
    "share": 0.1813,
    "contribution": 0.10177,
    "kind": "driver",
    "features": [
     "h_cat_framing_prior",
     "a_cs30",
     "a_cat_framing_prior"
    ]
   },
   {
    "family": "starters",
    "phrase": "Starting pitchers leans over \u2014 mostly the away team",
    "share": 0.1464,
    "contribution": 0.08219,
    "kind": "driver",
    "features": [
     "a_sp_k_pct_shr",
     "a_sp_mix_drift",
     "h_sp_pitches_30d"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans over",
    "share": 0.0975,
    "contribution": 0.05471,
    "kind": "driver",
    "features": [
     "roof_open",
     "wind_out_comp",
     "alt_kft"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.7 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.0466,
    "contribution": 0.02614,
    "kind": "driver",
    "features": [
     "a_ra30",
     "a_elo",
     "a_rs30"
    ]
   }
  ]
 },
 {
  "market": "f5_total",
  "pass_kind": "final",
  "graded_utc": "2026-09-15T21:30:21Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.47767472690619506,
  "p_shipped": 0.4582936463764714,
  "model_mu": 4.625666314698089,
  "market_p": 0.47043701799485865,
  "divergence": 0.007237708911336405,
  "band": null,
  "anchor_line": 4.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-15T21:30:21Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "won",
  "factors": [
   {
    "family": "offense",
    "phrase": "The home team below league average in home runs, last 30 games",
    "share": 0.3023,
    "contribution": -0.12079,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_platoon_share",
     "a_off_hr30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire's strike zone has run wider than the league this past year \u2014 more called strikes",
    "share": 0.2541,
    "contribution": -0.10153,
    "kind": "driver",
    "features": [
     "ump_width_rel",
     "ump_acc_rel",
     "ump_bb_dev_sd"
    ]
   },
   {
    "family": "starters",
    "phrase": "Starting pitchers leans over \u2014 mostly the away team",
    "share": 0.2057,
    "contribution": 0.08219,
    "kind": "driver",
    "features": [
     "a_sp_k_pct_shr",
     "a_sp_mix_drift",
     "h_sp_pitches_30d"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans over",
    "share": 0.1726,
    "contribution": 0.06896,
    "kind": "driver",
    "features": [
     "roof_open",
     "alt_kft",
     "wind_out_comp"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.7 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.0654,
    "contribution": 0.02614,
    "kind": "driver",
    "features": [
     "a_ra30",
     "a_elo",
     "a_rs30"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "first",
  "graded_utc": "2026-09-15T13:15:18Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.43207008713652845,
  "p_shipped": 0.5079246129862721,
  "model_mu": 7.34119812517333,
  "market_p": 0.5167095115681234,
  "divergence": -0.08463942443159495,
  "band": "C",
  "anchor_line": 8.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-15T13:15:18Z",
  "lineup_known": 0,
  "ump_state": "unknown",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "offense",
    "phrase": "Both teams below league average in home runs, last 30 games",
    "share": 0.2804,
    "contribution": -0.14485,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_hr30",
     "a_off_xbh30"
    ]
   },
   {
    "family": "starters",
    "phrase": "The home starter walks 12.1% of batters, adjusted \u2014 a higher walk rate than average. Priced in, and it went too far \u2014 counts toward the under",
    "share": 0.2045,
    "contribution": -0.10564,
    "kind": "driver",
    "features": [
     "h_sp_bb_pct_shr",
     "a_sp_pitches_30d",
     "a_sp_bb_pct_shr"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans under",
    "share": 0.164,
    "contribution": -0.08471,
    "kind": "driver",
    "features": [
     "park_f5_asof",
     "alt_kft",
     "wind_out_comp"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.7 runs a game, last 30 \u2014 below league average. Priced in, and it went too far",
    "share": 0.1451,
    "contribution": 0.07496,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_rs30"
    ]
   },
   {
    "family": "ump",
    "phrase": "No umpire zone data \u2014 graded on league-typical assumptions",
    "share": 0.1149,
    "contribution": -0.05936,
    "kind": "gap",
    "features": [
     "ump_zone_miss",
     "ump_gate_miss",
     "ump_acc_asof"
    ]
   },
   {
    "family": "situational",
    "phrase": "Heavy travel this week for the home team",
    "share": 0.0912,
    "contribution": 0.0471,
    "kind": "driver",
    "features": [
     "h_miles7d_k",
     "a_miles7d_k",
     "a_dan"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "final",
  "graded_utc": "2026-09-15T21:30:21Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.4298250922069506,
  "p_shipped": 0.4898061615814269,
  "model_mu": 8.299345002986378,
  "market_p": 0.5064267352185091,
  "divergence": -0.07660164301155853,
  "band": "C",
  "anchor_line": 8.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-15T21:30:21Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "offense",
    "phrase": "Both teams below league average in home runs, last 30 games",
    "share": 0.2566,
    "contribution": -0.11355,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_hr30",
     "a_off_xbh30"
    ]
   },
   {
    "family": "starters",
    "phrase": "The home starter walks 12.1% of batters, adjusted \u2014 a higher walk rate than average. Priced in, and it went too far \u2014 counts toward the under",
    "share": 0.2387,
    "contribution": -0.10564,
    "kind": "driver",
    "features": [
     "h_sp_bb_pct_shr",
     "a_sp_pitches_30d",
     "a_sp_bb_pct_shr"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans under",
    "share": 0.172,
    "contribution": -0.07613,
    "kind": "driver",
    "features": [
     "park_f5_asof",
     "alt_kft",
     "wind_out_comp"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.7 runs a game, last 30 \u2014 below league average. Priced in, and it went too far",
    "share": 0.1694,
    "contribution": 0.07496,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_rs30"
    ]
   },
   {
    "family": "battery",
    "phrase": "Backup catcher starting",
    "share": 0.1634,
    "contribution": -0.0723,
    "kind": "driver",
    "features": [
     "h_backup_catcher",
     "h_framing_miss",
     "a_cs30"
    ]
   }
  ]
 }
]