{
  "date": "2026-08-19",
  "generated_at": "2026-08-19T08:07:44.620110",
  "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": 171,
    "odds_matched_count": 96,
    "tail_active_count": 0,
    "tail_active_rate": 0.0,
    "strict_pool_count": 0,
    "watch_pool_count": 38,
    "fallback_used": true
  },
  "main_board": [],
  "extended_watchlist": [
    {
      "date": "2026-08-19",
      "player_name": "Gunnar Henderson",
      "hitter_name": "Gunnar Henderson",
      "hitter_id": 683002,
      "team": "BAL",
      "team_abbr": "BAL",
      "opponent": "NYY",
      "opponent_abbr": "NYY",
      "game_id": 824801,
      "lineup_slot": 1,
      "sportsbook": "FanDuel",
      "hr_odds": 455,
      "over_odds": 455,
      "prob_1_plus_hr": 0.2186,
      "expected_home_runs": 0.2467,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2188,
      "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": "2026-08-19",
      "player_name": "Corey Seager",
      "hitter_name": "Corey Seager",
      "hitter_id": 608369,
      "team": "TEX",
      "team_abbr": "TEX",
      "opponent": "WSH",
      "opponent_abbr": "WSH",
      "game_id": 822860,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 350,
      "over_odds": 350,
      "prob_1_plus_hr": 0.2324,
      "expected_home_runs": 0.2645,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2325,
      "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": "2026-08-19",
      "player_name": "Francisco Lindor",
      "hitter_name": "Francisco Lindor",
      "hitter_id": 596019,
      "team": "NYM",
      "team_abbr": "NYM",
      "opponent": "SD",
      "opponent_abbr": "SD",
      "game_id": 823587,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 420,
      "over_odds": 420,
      "prob_1_plus_hr": 0.2261,
      "expected_home_runs": 0.2563,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2262,
      "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": "2026-08-19",
      "player_name": "Matt Olson",
      "hitter_name": "Matt Olson",
      "hitter_id": 621566,
      "team": "ATL",
      "team_abbr": "ATL",
      "opponent": "MIN",
      "opponent_abbr": "MIN",
      "game_id": 823664,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 370,
      "over_odds": 370,
      "prob_1_plus_hr": 0.2128,
      "expected_home_runs": 0.2393,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2129,
      "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": "2026-08-19",
      "player_name": "Brandon Lowe",
      "hitter_name": "Brandon Lowe",
      "hitter_id": 664040,
      "team": "PIT",
      "team_abbr": "PIT",
      "opponent": "DET",
      "opponent_abbr": "DET",
      "game_id": 823342,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 395,
      "over_odds": 395,
      "prob_1_plus_hr": 0.2057,
      "expected_home_runs": 0.2303,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2058,
      "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": "2026-08-19",
      "player_name": "Kyle Tucker",
      "hitter_name": "Kyle Tucker",
      "hitter_id": 663656,
      "team": "LAD",
      "team_abbr": "LAD",
      "opponent": "COL",
      "opponent_abbr": "COL",
      "game_id": 824318,
      "lineup_slot": 3,
      "sportsbook": "FanDuel",
      "hr_odds": 450,
      "over_odds": 450,
      "prob_1_plus_hr": 0.2014,
      "expected_home_runs": 0.2249,
      "tail_adjusted_prob_1_plus_hr_v3": 0.2015,
      "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": "2026-08-19",
      "player_name": "Taylor Ward",
      "hitter_name": "Taylor Ward",
      "hitter_id": 621493,
      "team": "BAL",
      "team_abbr": "BAL",
      "opponent": "NYY",
      "opponent_abbr": "NYY",
      "game_id": 824801,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 460,
      "over_odds": 460,
      "prob_1_plus_hr": 0.1948,
      "expected_home_runs": 0.2167,
      "tail_adjusted_prob_1_plus_hr_v3": 0.195,
      "tail_uplift": 0.0002,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 49.64,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-08-19",
      "player_name": "Riley Greene",
      "hitter_name": "Riley Greene",
      "hitter_id": 682985,
      "team": "DET",
      "team_abbr": "DET",
      "opponent": "PIT",
      "opponent_abbr": "PIT",
      "game_id": 823342,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 445,
      "over_odds": 445,
      "prob_1_plus_hr": 0.1947,
      "expected_home_runs": 0.2166,
      "tail_adjusted_prob_1_plus_hr_v3": 0.1948,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 49.41,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-08-19",
      "player_name": "Matt Wallner",
      "hitter_name": "Matt Wallner",
      "hitter_id": 670242,
      "team": "MIN",
      "team_abbr": "MIN",
      "opponent": "ATL",
      "opponent_abbr": "ATL",
      "game_id": 823664,
      "lineup_slot": 2,
      "sportsbook": "FanDuel",
      "hr_odds": 405,
      "over_odds": 405,
      "prob_1_plus_hr": 0.1891,
      "expected_home_runs": 0.2096,
      "tail_adjusted_prob_1_plus_hr_v3": 0.1893,
      "tail_uplift": 0.0002,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 48.73,
      "board_tier": "",
      "reason_for_inclusion": "Playable base HR rate; Long odds with asymmetric upside"
    },
    {
      "date": "2026-08-19",
      "player_name": "Jake Burger",
      "hitter_name": "Jake Burger",
      "hitter_id": 669394,
      "team": "TEX",
      "team_abbr": "TEX",
      "opponent": "WSH",
      "opponent_abbr": "WSH",
      "game_id": 822860,
      "lineup_slot": 4,
      "sportsbook": "FanDuel",
      "hr_odds": 425,
      "over_odds": 425,
      "prob_1_plus_hr": 0.192,
      "expected_home_runs": 0.2132,
      "tail_adjusted_prob_1_plus_hr_v3": 0.1921,
      "tail_uplift": 0.0001,
      "tail_multiplier": 1.0,
      "framing_component": 1.0,
      "tail_layer_active_flag": 0,
      "game_cluster_flag": 0,
      "high_upside_score": 48.6,
      "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": "NYY",
        "lineup_slot": 1,
        "hr_odds": 455,
        "prob_1_plus_hr": 0.2186,
        "tail_uplift": 0.0002,
        "high_upside_score": 51.6
      },
      {
        "player_name": "Corey Seager",
        "team": "TEX",
        "opponent": "WSH",
        "lineup_slot": 2,
        "hr_odds": 350,
        "prob_1_plus_hr": 0.2324,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Francisco Lindor",
        "team": "NYM",
        "opponent": "SD",
        "lineup_slot": 2,
        "hr_odds": 420,
        "prob_1_plus_hr": 0.2261,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Matt Olson",
        "team": "ATL",
        "opponent": "MIN",
        "lineup_slot": 2,
        "hr_odds": 370,
        "prob_1_plus_hr": 0.2128,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Brandon Lowe",
        "team": "PIT",
        "opponent": "DET",
        "lineup_slot": 4,
        "hr_odds": 395,
        "prob_1_plus_hr": 0.2057,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Kyle Tucker",
        "team": "LAD",
        "opponent": "COL",
        "lineup_slot": 3,
        "hr_odds": 450,
        "prob_1_plus_hr": 0.2014,
        "tail_uplift": 0.0001,
        "high_upside_score": 51.0
      },
      {
        "player_name": "Taylor Ward",
        "team": "BAL",
        "opponent": "NYY",
        "lineup_slot": 4,
        "hr_odds": 460,
        "prob_1_plus_hr": 0.1948,
        "tail_uplift": 0.0002,
        "high_upside_score": 49.64
      },
      {
        "player_name": "Riley Greene",
        "team": "DET",
        "opponent": "PIT",
        "lineup_slot": 4,
        "hr_odds": 445,
        "prob_1_plus_hr": 0.1947,
        "tail_uplift": 0.0001,
        "high_upside_score": 49.41
      },
      {
        "player_name": "Matt Wallner",
        "team": "MIN",
        "opponent": "ATL",
        "lineup_slot": 2,
        "hr_odds": 405,
        "prob_1_plus_hr": 0.1891,
        "tail_uplift": 0.0002,
        "high_upside_score": 48.73
      },
      {
        "player_name": "Jake Burger",
        "team": "TEX",
        "opponent": "WSH",
        "lineup_slot": 4,
        "hr_odds": 425,
        "prob_1_plus_hr": 0.192,
        "tail_uplift": 0.0001,
        "high_upside_score": 48.6
      }
    ]
  }
}