SPOTTER.
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ATL 3 · CHC 7 — how the graded markets landed
FINAL

Atlanta Braves @ Chicago Cubs

Mon 9/14 · 6:40 PM CDT · forecast weather in the grade · ump: confirmed
FIRST 5 INNINGS · OVER 5.5
C
C cards like this have won 51% over · market 48%
TOTAL
no lean
model 51% under · market 51%
the letter is how far we sit from the market, not how sure we are
THE PICTURE — what's driving the 6-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 over — mostly the away team57%
The home team above league average in home runs, last 30 games22%
Park & environment leans over11%
The home team's catcher loses strikes on close pitches7%
Strike-throwing umpire zoneagainst the over3%
Market: First-5-innings Over 5.5 at +101 (pinnacle, quoted 5:30 PM CDT) · model expects ~5.9 runs · divergence 6 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.
Frozen C at 8:15 AM CDT · the number held.
anchor First-5 Over 5.5 +101 → closed +101 · unchanged
SITUATIONAL CONDITIONSdetected for this game · not a grade input — anything that carries weight appears in THE PICTURE
Starter recently back from injury
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": "2026-09-14T13:15:49Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.5209050292163385,
  "p_shipped": 0.4560445366099814,
  "model_mu": 4.898599808308031,
  "market_p": 0.4675324675324676,
  "divergence": 0.053372561683870945,
  "band": "C",
  "anchor_line": 5.5,
  "anchor_book": "betonlineag",
  "anchor_fetched_utc": "2026-09-14T13:15:49Z",
  "lineup_known": 0,
  "ump_state": "unknown",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.4075,
    "contribution": 0.2291,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_elo"
    ]
   },
   {
    "family": "ump",
    "phrase": "No recent umpire zone reading against the league \u2014 graded on league-typical assumptions",
    "share": 0.2291,
    "contribution": -0.12879,
    "kind": "gap",
    "features": [
     "ump_rel_miss",
     "ump_acc_rel",
     "ump_bb_dev_sd"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.1596,
    "contribution": 0.08971,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_off_xbh30",
     "a_off_hr30"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans over",
    "share": 0.1373,
    "contribution": 0.07716,
    "kind": "driver",
    "features": [
     "roof_open",
     "temp_out",
     "wind_out_comp"
    ]
   },
   {
    "family": "battery",
    "phrase": "The home team's catcher loses strikes on close pitches",
    "share": 0.0499,
    "contribution": 0.02802,
    "kind": "driver",
    "features": [
     "h_cat_framing_prior",
     "a_cs30",
     "h_wp_pb30"
    ]
   },
   {
    "family": "starters",
    "phrase": "The away starter recently back from injury",
    "share": 0.0167,
    "contribution": 0.00938,
    "kind": "driver",
    "features": [
     "a_sp_il_return",
     "h_sp_tto_decay",
     "a_sp_pitches_30d"
    ]
   }
  ]
 },
 {
  "market": "f5_total",
  "pass_kind": "final",
  "graded_utc": "2026-09-14T22:30:49Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.5415831970384138,
  "p_shipped": 0.48985412556482477,
  "model_mu": 5.875917108470129,
  "market_p": 0.48062015503875977,
  "divergence": 0.06096304199965408,
  "band": "C",
  "anchor_line": 5.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-14T22:30:49Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.5709,
    "contribution": 0.2291,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_elo"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.2188,
    "contribution": 0.08781,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_off_xbh30",
     "a_off_hr30"
    ]
   },
   {
    "family": "park",
    "phrase": "Park & environment leans over",
    "share": 0.1118,
    "contribution": 0.04485,
    "kind": "driver",
    "features": [
     "roof_open",
     "temp_out",
     "wind_out_comp"
    ]
   },
   {
    "family": "battery",
    "phrase": "The home team's catcher loses strikes on close pitches",
    "share": 0.0698,
    "contribution": 0.02802,
    "kind": "driver",
    "features": [
     "h_cat_framing_prior",
     "a_cs30",
     "h_wp_pb30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Strike-throwing umpire zone",
    "share": 0.0287,
    "contribution": -0.01153,
    "kind": "driver",
    "features": [
     "ump_bb_dev_sd",
     "ump_acc_rel",
     "ump_width_rel"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "first",
  "graded_utc": "2026-09-14T13:15:49Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.4550766560394927,
  "p_shipped": 0.49327946591546706,
  "model_mu": 8.612434164600042,
  "market_p": 0.4895287958115184,
  "divergence": -0.034452139772025714,
  "band": null,
  "anchor_line": 9.5,
  "anchor_book": "betonlineag",
  "anchor_fetched_utc": "2026-09-14T13:15:49Z",
  "lineup_known": 0,
  "ump_state": "unknown",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "starters",
    "phrase": "The away starter likely goes only an inning or two \u2014 relievers cover most of the game. Priced in, and it went too far \u2014 counts toward the under",
    "share": 0.4534,
    "contribution": -0.31461,
    "kind": "driver",
    "features": [
     "a_sp_opener",
     "a_sp_pitches_30d",
     "h_sp_bb_pct_shr"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.2715,
    "contribution": 0.18838,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_ra30"
    ]
   },
   {
    "family": "ump",
    "phrase": "No umpire zone data \u2014 graded on league-typical assumptions",
    "share": 0.0856,
    "contribution": -0.05936,
    "kind": "gap",
    "features": [
     "ump_zone_miss",
     "ump_gate_miss",
     "ump_acc_asof"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans over \u2014 mostly the away team",
    "share": 0.0834,
    "contribution": 0.05784,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_err30"
    ]
   },
   {
    "family": "battery",
    "phrase": "The away team gives up stolen bases",
    "share": 0.0643,
    "contribution": 0.04464,
    "kind": "driver",
    "features": [
     "a_cs30",
     "a_wp_pb30",
     "h_wp_pb30"
    ]
   },
   {
    "family": "park",
    "phrase": "Game-time temperature 68\u00b0F",
    "share": 0.0418,
    "contribution": -0.029,
    "kind": "driver",
    "features": [
     "temp_out",
     "park_f5_asof",
     "wind_out_comp"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "final",
  "graded_utc": "2026-09-14T22:30:49Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.4560415733855868,
  "p_shipped": 0.48833734675793977,
  "model_mu": 9.40658251294192,
  "market_p": 0.493573264781491,
  "divergence": -0.037531691395904176,
  "band": null,
  "anchor_line": 9.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-14T22:30:49Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "starters",
    "phrase": "The away starter likely goes only an inning or two \u2014 relievers cover most of the game. Priced in, and it went too far \u2014 counts toward the under",
    "share": 0.4814,
    "contribution": -0.31461,
    "kind": "driver",
    "features": [
     "a_sp_opener",
     "a_sp_pitches_30d",
     "h_sp_bb_pct_shr"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans over \u2014 mostly the away team",
    "share": 0.2882,
    "contribution": 0.18838,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_ra30",
     "h_ra30"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans over \u2014 mostly the away team",
    "share": 0.0885,
    "contribution": 0.05784,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_err30"
    ]
   },
   {
    "family": "park",
    "phrase": "Game-time temperature 66\u00b0F",
    "share": 0.0736,
    "contribution": -0.04812,
    "kind": "driver",
    "features": [
     "temp_out",
     "park_f5_asof",
     "roof_open"
    ]
   },
   {
    "family": "battery",
    "phrase": "The away team gives up stolen bases",
    "share": 0.0683,
    "contribution": 0.04464,
    "kind": "driver",
    "features": [
     "a_cs30",
     "a_wp_pb30",
     "h_wp_pb30"
    ]
   }
  ]
 }
]