{
  "date": "2026-04-12",
  "generated_at": "2026-04-12T09:54:21.195809",
  "artifact_type": "home_run_high_upside_board",
  "description": "Separate high-upside HR board built from the tail-risk layer. It is not a replacement for the core HR board and is not simply highest raw HR probability.",
  "scoring": {
    "formula": "100 * (0.40*uplift_component + 0.30*base_component + 0.20*odds_component + 0.10*active_component)",
    "base_component": "clamp((prob_1_plus_hr - 0.10) / 0.10, 0, 1)",
    "uplift_component": "clamp(tail_uplift / 0.004, 0, 1)",
    "odds_component": "prefers roughly +180 to +450 HR odds with a fade above that",
    "active_component": "1.0 only when tail_layer_active_flag == 1"
  },
  "guardrails": {
    "main_board": {
      "requires_tail_layer_active": true,
      "minimum_base_probability": 0.1,
      "minimum_tail_uplift": 0.0015,
      "minimum_over_odds_if_available": 160
    },
    "watchlist": {
      "minimum_base_probability": 0.075,
      "minimum_tail_uplift": 0.0005,
      "allows_longer_odds_alternatives": true
    }
  },
  "diagnostics": {
    "projection_count": 225,
    "odds_matched_count": 127,
    "tail_active_count": 0,
    "tail_active_rate": 0.0,
    "strict_pool_count": 0,
    "watch_pool_count": 41,
    "fallback_used": true
  },
  "main_board": [],
  "extended_watchlist": [
    {
      "date": "2026-04-12",
      "player_name": "Gunnar Henderson",
      "hitter_name": "Gunnar Henderson",
      "hitter_id": 683002,
      "team": "BAL",
      "team_abbr": "BAL",
      "opponent": "SF",
      "opponent_abbr": "SF",
      "game_id": 824859,
      "lineup_slot": 1,
      "sportsbook": "FanDuel",
      "hr_odds": 455,
      "over_odds": 455,
      "prob_1_plus_hr": 0.2064,
      "expected_home_runs": 0.2312,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2066,
      "tail_uplift": 0.0002,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.6,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Marcell Ozuna",
      "hitter_name": "Marcell Ozuna",
      "hitter_id": 542303,
      "team": "PIT",
      "team_abbr": "PIT",
      "opponent": "CHC",
      "opponent_abbr": "CHC",
      "game_id": 824696,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 380,
      "over_odds": 380,
      "prob_1_plus_hr": 0.2306,
      "expected_home_runs": 0.2622,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2307,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Mike Trout",
      "hitter_name": "Mike Trout",
      "hitter_id": 545361,
      "team": "LAA",
      "team_abbr": "LAA",
      "opponent": "CIN",
      "opponent_abbr": "CIN",
      "game_id": 824533,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 410,
      "over_odds": 410,
      "prob_1_plus_hr": 0.2251,
      "expected_home_runs": 0.255,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2252,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Brandon Lowe",
      "hitter_name": "Brandon Lowe",
      "hitter_id": 664040,
      "team": "PIT",
      "team_abbr": "PIT",
      "opponent": "CHC",
      "opponent_abbr": "CHC",
      "game_id": 824696,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 395,
      "over_odds": 395,
      "prob_1_plus_hr": 0.2218,
      "expected_home_runs": 0.2508,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2219,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Kerry Carpenter",
      "hitter_name": "Kerry Carpenter",
      "hitter_id": 681481,
      "team": "DET",
      "team_abbr": "DET",
      "opponent": "MIA",
      "opponent_abbr": "MIA",
      "game_id": 824293,
      "lineup_slot": 3,
      "sportsbook": "FanDuel",
      "hr_odds": 400,
      "over_odds": 400,
      "prob_1_plus_hr": 0.215,
      "expected_home_runs": 0.2421,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2151,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Jo Adell",
      "hitter_name": "Jo Adell",
      "hitter_id": 666176,
      "team": "LAA",
      "team_abbr": "LAA",
      "opponent": "CIN",
      "opponent_abbr": "CIN",
      "game_id": 824533,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 390,
      "over_odds": 390,
      "prob_1_plus_hr": 0.2143,
      "expected_home_runs": 0.2412,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2144,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Kyle Tucker",
      "hitter_name": "Kyle Tucker",
      "hitter_id": 663656,
      "team": "LAD",
      "team_abbr": "LAD",
      "opponent": "TEX",
      "opponent_abbr": "TEX",
      "game_id": 823966,
      "lineup_slot": 3,
      "sportsbook": "FanDuel",
      "hr_odds": 430,
      "over_odds": 430,
      "prob_1_plus_hr": 0.2042,
      "expected_home_runs": 0.2284,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2043,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 51.0,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Fernando Tatis Jr.",
      "hitter_name": "Fernando Tatis Jr.",
      "hitter_id": 665487,
      "team": "SD",
      "team_abbr": "SD",
      "opponent": "COL",
      "opponent_abbr": "COL",
      "game_id": 823317,
      "lineup_slot": 1,
      "sportsbook": "FanDuel",
      "hr_odds": 465,
      "over_odds": 465,
      "prob_1_plus_hr": 0.2042,
      "expected_home_runs": 0.2284,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2044,
      "tail_uplift": 0.0002,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 50.8,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "Jorge Soler",
      "hitter_name": "Jorge Soler",
      "hitter_id": 624585,
      "team": "LAA",
      "team_abbr": "LAA",
      "opponent": "CIN",
      "opponent_abbr": "CIN",
      "game_id": 824533,
      "lineup_slot": 3,
      "sportsbook": "FanDuel",
      "hr_odds": 455,
      "over_odds": 455,
      "prob_1_plus_hr": 0.2265,
      "expected_home_runs": 0.2568,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2266,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 50.6,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-04-12",
      "player_name": "James Wood",
      "hitter_name": "James Wood",
      "hitter_id": 695578,
      "team": "WSH",
      "team_abbr": "WSH",
      "opponent": "MIL",
      "opponent_abbr": "MIL",
      "game_id": 823804,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 485,
      "over_odds": 485,
      "prob_1_plus_hr": 0.2332,
      "expected_home_runs": 0.2655,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2333,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 48.2,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    }
  ],
  "site_preview": {
    "main_board": [],
    "watchlist": [
      {
        "player_name": "Gunnar Henderson",
        "team": "BAL",
        "opponent": "SF",
        "lineup_slot": 1,
        "hr_odds": 455,
        "prob_1_plus_hr": 0.2064,
        "tail_uplift": 0.0002,
        "high_upside_score": 51.6
      },
      {
        "player_name": "Marcell Ozuna",
        "team": "PIT",
        "opponent": "CHC",
        "lineup_slot": 2,
        "hr_odds": 380,
        "prob_1_plus_hr": 0.2306,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Mike Trout",
        "team": "LAA",
        "opponent": "CIN",
        "lineup_slot": 2,
        "hr_odds": 410,
        "prob_1_plus_hr": 0.2251,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Brandon Lowe",
        "team": "PIT",
        "opponent": "CHC",
        "lineup_slot": 4,
        "hr_odds": 395,
        "prob_1_plus_hr": 0.2218,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Kerry Carpenter",
        "team": "DET",
        "opponent": "MIA",
        "lineup_slot": 3,
        "hr_odds": 400,
        "prob_1_plus_hr": 0.215,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Jo Adell",
        "team": "LAA",
        "opponent": "CIN",
        "lineup_slot": 4,
        "hr_odds": 390,
        "prob_1_plus_hr": 0.2143,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Kyle Tucker",
        "team": "LAD",
        "opponent": "TEX",
        "lineup_slot": 3,
        "hr_odds": 430,
        "prob_1_plus_hr": 0.2042,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Fernando Tatis Jr.",
        "team": "SD",
        "opponent": "COL",
        "lineup_slot": 1,
        "hr_odds": 465,
        "prob_1_plus_hr": 0.2042,
        "tail_uplift": 0.0002,
        "high_upside_score": 50.8
      },
      {
        "player_name": "Jorge Soler",
        "team": "LAA",
        "opponent": "CIN",
        "lineup_slot": 3,
        "hr_odds": 455,
        "prob_1_plus_hr": 0.2265,
        "tail_uplift": 0.0001,
        "high_upside_score": 50.6
      },
      {
        "player_name": "James Wood",
        "team": "WSH",
        "opponent": "MIL",
        "lineup_slot": 2,
        "hr_odds": 485,
        "prob_1_plus_hr": 0.2332,
        "tail_uplift": 0.0001,
        "high_upside_score": 48.2
      }
    ]
  }
}