SPOTTER.
You have to decide based on everything. Here's everything — graded.
Game View
first pitch 3:10 PM CDT

Chicago Cubs @ Miami Marlins

Sat 9/5 · 3:10 PM CDT · forecast weather in the grade · ump: confirmed
FIRST 5 INNINGS
no lean
model 52% under · market 51%
TOTAL
no lean
model 54% under · market 52%
the letter is how far we sit from the market, not how sure we are
THE PICTURE — what's driving the 2-point gapsized against each other · measured against the line — a stat the market already prices can point opposite its usual read
The away team above league average in home runs, last 30 gamesagainst the under38%
Team strength & form leans under — mostly the away team32%
Umpire's strike zone has run wider than the league this past year — more called strikes13%
Day game10%
The away starter back from a 30+ day MLB gap — established arm3%
WHAT WE COULDN'T SEEpriced into our number — not evidence about this game
No 2025 record of strikes gained behind the plate for the away catcher — graded at league averageagainst the under5%
Market: First-5-innings Under 4.5 at -112 (pinnacle, quoted 2:00 PM CDT) · the full picture prices it -110 · model expects ~4.5 runs · divergence 2 points — band none.
SITUATIONAL CONDITIONSdetected for this game · not a grade input — anything that carries weight appears in THE PICTURE
Catcher rest spotVeteran rest spotDay game after a night game
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": "2026-09-05T13:15:59Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.45940177446861796,
  "p_shipped": 0.47979094873260597,
  "model_mu": 3.4971822891858833,
  "market_p": 0.49090909090909085,
  "divergence": -0.03150731644047289,
  "band": null,
  "anchor_line": 4.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-05T13:15:59Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "none",
  "result": "lost",
  "factors": [
   {
    "family": "offense",
    "phrase": "The away team above league average in home runs, last 30 games",
    "share": 0.3711,
    "contribution": 0.23669,
    "kind": "driver",
    "features": [
     "a_off_hr30",
     "h_off_xbh30",
     "h_off_hr30"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans under \u2014 mostly the away team",
    "share": 0.331,
    "contribution": -0.21108,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_elo",
     "h_ra30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire's strike zone has run wider than the league this past year \u2014 more called strikes",
    "share": 0.1327,
    "contribution": -0.08462,
    "kind": "driver",
    "features": [
     "ump_width_rel",
     "ump_acc_rel",
     "ump_bb_dev_sd"
    ]
   },
   {
    "family": "park",
    "phrase": "Day game",
    "share": 0.13,
    "contribution": -0.08289,
    "kind": "driver",
    "features": [
     "day_game",
     "is_retract",
     "alt_kft"
    ]
   },
   {
    "family": "battery",
    "phrase": "Behind the plate leans over \u2014 mostly the home team",
    "share": 0.0353,
    "contribution": 0.0225,
    "kind": "driver",
    "features": [
     "h_cs30",
     "a_cat_framing_prior",
     "a_cs30"
    ]
   }
  ]
 },
 {
  "market": "f5_total",
  "pass_kind": "final",
  "graded_utc": "2026-09-05T19:00:14Z",
  "rung": "l1",
  "fit_id": 121,
  "feature_version": 5,
  "model_p": 0.4695492385584164,
  "p_shipped": 0.4771183798846851,
  "model_mu": 4.496081146179644,
  "market_p": 0.4883720930232558,
  "divergence": -0.01882285446483939,
  "band": null,
  "anchor_line": 4.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-05T19:00:14Z",
  "lineup_known": 1,
  "ump_state": "confirmed",
  "weather_kind": "forecast",
  "result": "lost",
  "factors": [
   {
    "family": "offense",
    "phrase": "The away team above league average in home runs, last 30 games",
    "share": 0.3768,
    "contribution": 0.25048,
    "kind": "driver",
    "features": [
     "a_off_hr30",
     "h_off_xbh30",
     "h_off_hr30"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans under \u2014 mostly the away team",
    "share": 0.3175,
    "contribution": -0.21108,
    "kind": "driver",
    "features": [
     "a_rs30",
     "a_elo",
     "h_ra30"
    ]
   },
   {
    "family": "ump",
    "phrase": "Umpire's strike zone has run wider than the league this past year \u2014 more called strikes",
    "share": 0.1273,
    "contribution": -0.08462,
    "kind": "driver",
    "features": [
     "ump_width_rel",
     "ump_acc_rel",
     "ump_bb_dev_sd"
    ]
   },
   {
    "family": "park",
    "phrase": "Day game",
    "share": 0.1014,
    "contribution": -0.06742,
    "kind": "driver",
    "features": [
     "day_game",
     "is_retract",
     "alt_kft"
    ]
   },
   {
    "family": "battery",
    "phrase": "No 2025 record of strikes gained behind the plate for the away catcher \u2014 graded at league average",
    "share": 0.0512,
    "contribution": 0.03404,
    "kind": "gap",
    "features": [
     "a_framing_miss",
     "a_backup_catcher",
     "h_cs30"
    ]
   },
   {
    "family": "starters",
    "phrase": "The away starter back from a 30+ day MLB gap \u2014 established arm",
    "share": 0.0258,
    "contribution": -0.01717,
    "kind": "driver",
    "features": [
     "a_sp_return_vet",
     "h_sp_tto_decay",
     "a_sp_k_pct_shr"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "first",
  "graded_utc": "2026-09-05T13:15:59Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.43550818003714675,
  "p_shipped": 0.4769564883207136,
  "model_mu": 7.36549547938554,
  "market_p": 0.4857881136950904,
  "divergence": -0.05027993365794364,
  "band": null,
  "anchor_line": 8.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-05T13:15:59Z",
  "lineup_known": 0,
  "ump_state": "projected",
  "weather_kind": "none",
  "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": 0.3016,
    "contribution": -0.26295,
    "kind": "driver",
    "features": [
     "a_sp_opener",
     "a_sp_pitches_30d",
     "h_sp_velo_dev"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans under \u2014 mostly the away team",
    "share": 0.2955,
    "contribution": -0.2576,
    "kind": "driver",
    "features": [
     "a_rs30",
     "h_ra30",
     "a_ra30"
    ]
   },
   {
    "family": "offense",
    "phrase": "The away team above league average in extra-base hits, last 30 games",
    "share": 0.2772,
    "contribution": 0.24171,
    "kind": "driver",
    "features": [
     "a_off_xbh30",
     "a_off_hr30",
     "h_off_hr30"
    ]
   },
   {
    "family": "park",
    "phrase": "Day game",
    "share": 0.0657,
    "contribution": 0.05732,
    "kind": "driver",
    "features": [
     "day_game",
     "wind_miss",
     "is_retract"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans over \u2014 mostly the away team",
    "share": 0.0599,
    "contribution": 0.05223,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_unearned30"
    ]
   }
  ]
 },
 {
  "market": "total",
  "pass_kind": "final",
  "graded_utc": "2026-09-05T19:00:14Z",
  "rung": "l1",
  "fit_id": 117,
  "feature_version": 5,
  "model_p": 0.4650234712200929,
  "p_shipped": 0.4642236739280021,
  "model_mu": 8.780170157946474,
  "market_p": 0.48205128205128206,
  "divergence": -0.01702781083118915,
  "band": null,
  "anchor_line": 8.5,
  "anchor_book": "pinnacle",
  "anchor_fetched_utc": "2026-09-05T19:00:14Z",
  "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": 0.2719,
    "contribution": -0.26295,
    "kind": "driver",
    "features": [
     "a_sp_opener",
     "a_sp_pitches_30d",
     "h_sp_velo_dev"
    ]
   },
   {
    "family": "strength",
    "phrase": "Team strength & form leans under \u2014 mostly the away team",
    "share": 0.2664,
    "contribution": -0.2576,
    "kind": "driver",
    "features": [
     "a_rs30",
     "h_ra30",
     "a_ra30"
    ]
   },
   {
    "family": "offense",
    "phrase": "The away team above league average in extra-base hits, last 30 games",
    "share": 0.2641,
    "contribution": 0.25539,
    "kind": "driver",
    "features": [
     "a_off_xbh30",
     "a_off_hr30",
     "h_off_hr30"
    ]
   },
   {
    "family": "park",
    "phrase": "Day game",
    "share": 0.1436,
    "contribution": 0.13883,
    "kind": "driver",
    "features": [
     "day_game",
     "is_retract",
     "park_f5_asof"
    ]
   },
   {
    "family": "defense",
    "phrase": "Defense leans over \u2014 mostly the away team",
    "share": 0.054,
    "contribution": 0.05223,
    "kind": "driver",
    "features": [
     "a_err30",
     "a_unearned30",
     "h_unearned30"
    ]
   }
  ]
 }
]