SPOTTER.
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KC 2 · HOU 6 — how the graded markets landed
FINAL

Kansas City Royals @ Houston Astros

Thu 9/17 · 6:15 PM CDT · forecast weather in the grade · ump: confirmed
TOTAL · OVER 9.0 RUNS
A
A cards like this have won 54% over · market 47% · stake 1u
FIRST 5 INNINGS · OVER 5.0
B
B cards like this have won 49% over · market 48%
the letter is how far we sit from the market, not how sure we are
THE PICTURE — what's driving the 12-point gapsized against each other · measured against the line — a stat the market already prices can point opposite its usual read
One driver on this card sits far outside its normal range; the model is extrapolating.37%
Schedule spot: getaway day for the away team — day game, then travelagainst the over21%
The home team above league average in home runs, last 30 games17%
Walk-prone umpire zone13%
The away team allowing 3.9 runs a game, last 30 — below league average. Priced in, and it went too far — counts toward the over12%
Market: Over 9.0 runs at +105 (pinnacle, quoted 5:00 PM CDT) · model expects ~10.2 runs · divergence 12 points — band A. A-band cutoffs fitted on OOF 2021-2024; the live record starts with this log. A cards in this market have won 54.4% of 927 out-of-sample grades (2021-2024), +3.5 points over break-even at the close. Plan cell · suggested stake 1u of the flat unit — the stake follows the cell, not this card's number.
FIRST 5Frozen B at 8:15 AM CDT · the number held. · both passes leaned this way.
TOTALFrozen C at 8:15 AM CDT · the market moved away from it · final grade A. · new at this pass — the morning pass had no lean.
FIRST 5anchor First-5 Over 5.0 +102 → closed +104 · away
TOTALanchor Over 9.0 runs +105 → closed Over 8.5 runs -116 · away
SITUATIONAL CONDITIONSdetected for this game · not a grade input — anything that carries weight appears in THE PICTURE
Getaway day (day game, then travel)Catcher rest spot
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": "2026-09-17T13:15:21Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.594794387635763,
  "p_shipped": 0.48046149335395405,
  "model_mu": 5.09855740458261,
  "market_p": 0.4805194805194806,
  "divergence": 0.11427490711628235,
  "band": "B",
  "anchor_line": 5.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-17T13:15:21Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "none",
  "result": "push",
  "factors": [
   {
    "family": "starters",
    "phrase": "No prior major-league start on record for the home starter \u2014 graded on league-typical assumptions",
    "share": 0.5812,
    "contribution": 0.29486,
    "kind": "gap",
    "features": [
     "h_sp_days_rest_miss",
     "a_sp_k_pct_shr",
     "a_sp_velo_dev"
    ]
   },
   {
    "family": "battery",
    "phrase": "No record of strikes gained behind the plate for the away team \u2014 graded on league-typical assumptions",
    "share": 0.2108,
    "contribution": 0.10696,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "h_cs30",
     "h_cat_framing_prior"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.108,
    "contribution": 0.05482,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_bb30",
     "a_platoon_miss"
    ]
   },
   {
    "family": "ump",
    "phrase": "Walk-prone umpire zone",
    "share": 0.0594,
    "contribution": 0.03014,
    "kind": "driver",
    "features": [
     "ump_bb_dev_sd",
     "ump_acc_rel",
     "ump_width_rel"
    ]
   },
   {
    "family": "park",
    "phrase": "Retractable roof \u2014 state not known at grade time",
    "share": 0.0378,
    "contribution": 0.01915,
    "kind": "driver",
    "features": [
     "is_retract",
     "wx_miss",
     "alt_kft"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.9 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.0028,
    "contribution": 0.00144,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_elo"
    ]
   }
  ]
 },
 {
  "market": "f5_total",
  "pass_kind": "final",
  "graded_utc": "2026-09-17T22:00:21Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.5629046068558576,
  "p_shipped": 0.47368203429424083,
  "model_mu": 5.745305735705759,
  "market_p": 0.4780361757105944,
  "divergence": 0.08486843114526321,
  "band": "B",
  "anchor_line": 5.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-17T22:00:21Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "push",
  "factors": [
   {
    "family": "starters",
    "phrase": "The home starter has thrown 42 pitches over 30 days",
    "share": 0.4435,
    "contribution": 0.16698,
    "kind": "driver",
    "features": [
     "h_sp_pitches_30d",
     "h_sp_opener",
     "a_sp_k_pct_shr"
    ]
   },
   {
    "family": "battery",
    "phrase": "No 2025 record of strikes gained behind the plate for the away catcher \u2014 graded at league average",
    "share": 0.2841,
    "contribution": 0.10696,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "h_cs30",
     "h_cat_framing_prior"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.0966,
    "contribution": 0.03636,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "h_platoon_share",
     "a_off_bb30"
    ]
   },
   {
    "family": "park",
    "phrase": "Retractable roof \u2014 reported closed before first pitch",
    "share": 0.092,
    "contribution": 0.03463,
    "kind": "driver",
    "features": [
     "is_retract",
     "alt_kft",
     "wind_out_comp"
    ]
   },
   {
    "family": "ump",
    "phrase": "Walk-prone umpire zone",
    "share": 0.0801,
    "contribution": 0.03014,
    "kind": "driver",
    "features": [
     "ump_bb_dev_sd",
     "ump_acc_rel",
     "ump_width_rel"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.9 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.0038,
    "contribution": 0.00144,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_elo"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "first",
  "graded_utc": "2026-09-17T13:15:21Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.5538217051831987,
  "p_shipped": 0.4740156488396961,
  "model_mu": 8.378930672757656,
  "market_p": 0.4832041343669251,
  "divergence": 0.07061757081627362,
  "band": "C",
  "anchor_line": 9.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-17T13:15:21Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "none",
  "result": "lost",
  "factors": [
   {
    "family": "starters",
    "phrase": "No pitch-tracking data for the home starter \u2014 graded on league-typical assumptions",
    "share": 0.2028,
    "contribution": 0.14431,
    "kind": "gap",
    "features": [
     "h_sp_pitch_miss",
     "a_sp_pitches_30d",
     "a_sp_velo_dev"
    ]
   },
   {
    "family": "situational",
    "phrase": "Schedule spot: getaway day for the away team \u2014 day game, then travel",
    "share": 0.1938,
    "contribution": -0.13787,
    "kind": "driver",
    "features": [
     "h_rest0",
     "a_rest0",
     "a_getaway"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.1572,
    "contribution": 0.11185,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_bb30",
     "a_off_xbh30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Walk-prone umpire zone",
    "share": 0.1148,
    "contribution": 0.08168,
    "kind": "driver",
    "features": [
     "ump_bb_dev_sd",
     "ump_edge_cs_asof",
     "ump_width_asof"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.9 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.1094,
    "contribution": 0.07783,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_rs30"
    ]
   },
   {
    "family": "park",
    "phrase": "No wind reading \u2014 graded on league-typical assumptions",
    "share": 0.0926,
    "contribution": -0.06589,
    "kind": "gap",
    "features": [
     "wind_miss",
     "is_retract",
     "alt_kft"
    ]
   },
   {
    "family": "battery",
    "phrase": "No record of strikes gained behind the plate for the away team \u2014 graded on league-typical assumptions",
    "share": 0.0814,
    "contribution": 0.05793,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "a_cs30",
     "h_cs30"
    ]
   },
   {
    "family": "lineup",
    "phrase": "No recent call-ups in either lineup",
    "share": 0.0481,
    "contribution": -0.03421,
    "kind": "driver",
    "features": [
     "h_recent_debuts",
     "a_recent_debuts"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "final",
  "graded_utc": "2026-09-17T22:00:21Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.5959493096965218,
  "p_shipped": 0.47263011135660726,
  "model_mu": 10.211810678656825,
  "market_p": 0.4743589743589744,
  "divergence": 0.12159033533754743,
  "band": "A",
  "anchor_line": 9.0,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-17T22:00:21Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "starters",
    "phrase": "One driver on this card sits far outside its normal range; the model is extrapolating.",
    "share": 0.3686,
    "contribution": 0.23759,
    "kind": "driver",
    "features": [
     "h_sp_bf_per_start",
     "h_sp_prev_pitches",
     "h_sp_starts_c10"
    ]
   },
   {
    "family": "situational",
    "phrase": "Schedule spot: getaway day for the away team \u2014 day game, then travel",
    "share": 0.2139,
    "contribution": -0.13787,
    "kind": "driver",
    "features": [
     "h_rest0",
     "a_rest0",
     "a_getaway"
    ]
   },
   {
    "family": "offense",
    "phrase": "The home team above league average in home runs, last 30 games",
    "share": 0.17,
    "contribution": 0.10955,
    "kind": "driver",
    "features": [
     "h_off_hr30",
     "a_off_bb30",
     "a_off_xbh30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Walk-prone umpire zone",
    "share": 0.1267,
    "contribution": 0.08168,
    "kind": "driver",
    "features": [
     "ump_bb_dev_sd",
     "ump_edge_cs_asof",
     "ump_width_asof"
    ]
   },
   {
    "family": "strength",
    "phrase": "The away team allowing 3.9 runs a game, last 30 \u2014 below league average. Priced in, and it went too far \u2014 counts toward the over",
    "share": 0.1208,
    "contribution": 0.07783,
    "kind": "driver",
    "features": [
     "a_ra30",
     "h_ra30",
     "a_rs30"
    ]
   }
  ]
 }
]