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PIT 4 · CHC 3 — how the graded markets landed
FINAL

Pittsburgh Pirates @ Chicago Cubs

Sun 9/13 · 1:20 PM CDT · forecast weather in the grade · ump: confirmed
FIRST 5 INNINGS · OVER 4.0
C
C cards like this have won 51% over · market 47%
TOTAL
no lean
model 50% over · market 51%
the letter is how far we sit from the market, not how sure we are
THE PICTURE — what's driving the 7-point gapsized against each other · measured against the line — a stat the market already prices can point opposite its usual read
Team strength & form leans over35%
Wind blowing in, ~8 mph netagainst the over23%
Backup catcher startingagainst the over15%
Umpire's strike zone has run narrower than the league this past year — fewer called strikes14%
The home team above league average in home runs, last 30 games12%
Market: First-5-innings Over 4.0 at +104 (pinnacle, quoted 12:00 PM CDT) · model expects ~4.8 runs · divergence 7 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 50.9% of 1,034 out-of-sample grades (2021-2024), -0.5 points over break-even at the close. Not a betting-plan cell.
FIRST 5Frozen C at 8:15 AM CDT · the number held.
TOTALFrozen C at 8:15 AM CDT · the market came toward our number · final grade no lean.
anchor First-5 Over 4.0 +104 → closed +105 · away
SITUATIONAL CONDITIONSdetected for this game · not a grade input — anything that carries weight appears in THE PICTURE
Getaway day (day game, then travel)
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. F5 grades ride a shorter history (2023-2025).
Raw grade details (all passes)
[
 {
  "market": "f5_total",
  "pass_kind": "first",
  "graded_utc": "2026-09-13T13:15:49Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.5984071174458159,
  "p_shipped": 0.5392566909344748,
  "model_mu": 4.046354910942715,
  "market_p": 0.5347043701799487,
  "divergence": 0.06370274726586722,
  "band": "C",
  "anchor_line": 3.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-13T13:15:49Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over",
    "share": 0.3424,
    "contribution": 0.18489,
    "kind": "driver",
    "features": [
     "a_rs30",
     "h_ra30",
     "h_elo"
    ]
   },
   {
    "family": "park",
    "phrase": "Wind blowing in, ~9 mph net",
    "share": 0.239,
    "contribution": -0.12905,
    "kind": "driver",
    "features": [
     "wind_out_comp",
     "day_game",
     "roof_open"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire's strike zone has run narrower than the league this past year \u2014 fewer called strikes",
    "share": 0.141,
    "contribution": 0.07616,
    "kind": "driver",
    "features": [
     "ump_width_rel",
     "ump_bb_dev_sd",
     "ump_edge_cs_rel"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.1251,
    "contribution": 0.06753,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_off_xbh30",
     "a_off_xbh30"
    ]
   },
   {
    "family": "battery",
    "phrase": "No record of strikes gained behind the plate for the away team \u2014 graded on league-typical assumptions",
    "share": 0.1047,
    "contribution": 0.05656,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "h_cat_framing_prior",
     "h_cs30"
    ]
   },
   {
    "family": "starters",
    "phrase": "The home starter has thrown 474 pitches over 30 days",
    "share": 0.0478,
    "contribution": -0.02582,
    "kind": "driver",
    "features": [
     "h_sp_pitches_30d",
     "a_sp_mix_drift",
     "a_sp_bb_pct_shr"
    ]
   }
  ]
 },
 {
  "market": "f5_total",
  "pass_kind": "final",
  "graded_utc": "2026-09-13T17:00:49Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.5416689981426941,
  "p_shipped": 0.47547379991611777,
  "model_mu": 4.812928735512524,
  "market_p": 0.4742268041237113,
  "divergence": 0.06744219401898277,
  "band": "C",
  "anchor_line": 4.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-13T17:00:49Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over",
    "share": 0.3466,
    "contribution": 0.18489,
    "kind": "driver",
    "features": [
     "a_rs30",
     "h_ra30",
     "h_elo"
    ]
   },
   {
    "family": "park",
    "phrase": "Wind blowing in, ~8 mph net",
    "share": 0.2349,
    "contribution": -0.12531,
    "kind": "driver",
    "features": [
     "wind_out_comp",
     "day_game",
     "roof_open"
    ]
   },
   {
    "family": "battery",
    "phrase": "Backup catcher starting",
    "share": 0.151,
    "contribution": -0.08054,
    "kind": "driver",
    "features": [
     "h_backup_catcher",
     "a_backup_catcher",
     "h_cs30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire's strike zone has run narrower than the league this past year \u2014 fewer called strikes",
    "share": 0.1428,
    "contribution": 0.07616,
    "kind": "driver",
    "features": [
     "ump_width_rel",
     "ump_bb_dev_sd",
     "ump_edge_cs_rel"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.1247,
    "contribution": 0.0665,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_off_xbh30",
     "a_off_xbh30"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "first",
  "graded_utc": "2026-09-13T13:15:49Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.5482049310540831,
  "p_shipped": 0.5083043659477299,
  "model_mu": 6.923935800501261,
  "market_p": 0.4910025706940874,
  "divergence": 0.05720236035999565,
  "band": "C",
  "anchor_line": 7.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-13T13:15:49Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "forecast",
  "result": "push",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.2954,
    "contribution": 0.16981,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_ra30"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans under \u2014 mostly the away team",
    "share": 0.2111,
    "contribution": -0.12135,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_err30"
    ]
   },
   {
    "family": "bullpen",
    "phrase": "Bullpen leans over",
    "share": 0.1829,
    "contribution": 0.10511,
    "kind": "driver",
    "features": [
     "h_bp_pitches_3d",
     "a_bp_apps_3d",
     "h_bp_apps_3d"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire gives hitters the borderline call more than most",
    "share": 0.1071,
    "contribution": 0.06158,
    "kind": "driver",
    "features": [
     "ump_edge_cs_asof",
     "ump_bb_dev_sd",
     "ump_width_asof"
    ]
   },
   {
    "family": "battery",
    "phrase": "No record of strikes gained behind the plate for the away team \u2014 graded on league-typical assumptions",
    "share": 0.1023,
    "contribution": 0.05881,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "a_wp_pb30",
     "a_cs30"
    ]
   },
   {
    "family": "situational",
    "phrase": "Schedule spot: getaway day for the away team \u2014 day game, then travel",
    "share": 0.1011,
    "contribution": -0.0581,
    "kind": "driver",
    "features": [
     "h_rest0",
     "a_rest0",
     "a_getaway"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "final",
  "graded_utc": "2026-09-13T17:00:49Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.5114250222693989,
  "p_shipped": 0.5013273173043302,
  "model_mu": 7.800055465942425,
  "market_p": 0.5051546391752577,
  "divergence": 0.006270383094141185,
  "band": null,
  "anchor_line": 7.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-13T17:00:49Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "push",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.3055,
    "contribution": 0.16981,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_ra30"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans under \u2014 mostly the away team",
    "share": 0.2183,
    "contribution": -0.12135,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_err30"
    ]
   },
   {
    "family": "bullpen",
    "phrase": "Bullpen leans over",
    "share": 0.1891,
    "contribution": 0.10511,
    "kind": "driver",
    "features": [
     "h_bp_pitches_3d",
     "a_bp_apps_3d",
     "h_bp_apps_3d"
    ]
   },
   {
    "family": "battery",
    "phrase": "Backup catcher starting",
    "share": 0.1763,
    "contribution": -0.09802,
    "kind": "driver",
    "features": [
     "h_backup_catcher",
     "h_framing_miss",
     "a_backup_catcher"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire gives hitters the borderline call more than most",
    "share": 0.1108,
    "contribution": 0.06158,
    "kind": "driver",
    "features": [
     "ump_edge_cs_asof",
     "ump_bb_dev_sd",
     "ump_width_asof"
    ]
   }
  ]
 }
]