Underdog Fantasy

Live coverage of Underdog Fantasy via the ParlayAPI moneyline / spread / total / player-prop aggregator. Classification: DFS pick-em (single price, no two-sided market). Source key: underdog.

Supported sports + markets (last 72h)

americanfootball_ncaaf (16 markets)

• player_pass_tds 43,625 rows
• player_receptions 26,005 rows
• player_rec_yds 14,754 rows
• player_rush___rec_tds 6,316 rows
• player_first_td 3,903 rows
• player_1h_receiving_tds 1,734 rows
• player_longest_rec 1,525 rows
• player_1h_rush_tds 1,222 rows
• player_rush_yards 1,109 rows
• player_longest_rush 905 rows
• player_1q_receiving_tds 895 rows
• player_1q_rush_tds 805 rows
• player_1h_rush_yards 666 rows
• player_1q_rush_yards 621 rows
• player_ints_thrown 597 rows
• player_pass_yards 580 rows

americanfootball_nfl (12 markets)

• player_pass_tds 50,505 rows
• player_receptions 11,644 rows
• player_rush___rec_tds 3,921 rows
• player_1h_rush___rec_tds 3,262 rows
• player_first_td 2,777 rows
• player_1q_rush___rec_tds 2,537 rows
• player_rec_yds 1,043 rows
• player_fumbles_lost 609 rows
• player_rush_yards 602 rows
• player_longest_rec 555 rows
• player_1h_rec_yards 553 rows
• player_1q_rec_yards 537 rows

baseball_mlb (9 markets)

• player_points 3,532 rows
• player_runs 2,797 rows
• player_home_runs 2,764 rows
• player_rbis 2,763 rows
• player_hits_runs_rbis 2,724 rows
• player_hits 2,711 rows
• player_total_bases 2,709 rows
• player_batter_walks 2,456 rows
• player_stolen_bases 1,369 rows

esports_cs2 (2 markets)

• player_kills_on_maps_1_2 5,061 rows
• player_shots_on_goal 2,268 rows

esports_lol (1 markets)

• player_kills_on_maps_1_2_3 675 rows

other_unknown (17 markets)

• player_games_played 1,759 rows
• player_1st_set_games_won 1,584 rows
• player_rec_yds 1,471 rows
• player_tourney_finishing_position 1,296 rows
• player_sets_won 1,190 rows
• player_games_won 1,082 rows
• player_season_receiving_tds 933 rows
• player_sets_played 879 rows
• player_r1_leaderboard_position 780 rows
• player_1st_set_games_played 764 rows
• player_goals 671 rows
• player_season_rush_yards 670 rows
• player_season_sacks 661 rows
• player_season_rush_tds 661 rows
• player_tiebreakers_played 619 rows
• player_pass_tds 609 rows
• player_points 507 rows

soccer_other (3 markets)

• player_goals 72,109 rows
• player_goals_assists 1,820 rows
• player_assists 1,121 rows

How to query just this book

curl -s 'https://parlay-api.com/v1/sports/baseball_mlb/odds?regions=us&markets=h2h&bookmakers=underdog' \
  -H "X-API-Key: $PARLAY_API_KEY"

How freshness is graded

We poll Underdog Fantasy on the Daily fantasy / pick-em and sweepstakes freshness tier, which means we expect a new observation within 60s under healthy operation. Observations between 60s and 300s are flagged "degraded". Between 300s and 1800s we mark "breach" and page an operator. Beyond 1800s the source is "stale" and we typically pause comparisons against it until it recovers.

These thresholds are measured on the book as a whole: they say how long we can go without any new price from Underdog Fantasy, and not how old the price on one particular game is. A source that walks its slate one event at a time refreshes any single market less often than the tier above. Measured on production 2026-07-31, Fliff wrote a price every 5.3s at the median book-wide while its median WNBA game went 169s between writes, both healthy. For the age of a specific price, read the last_update field on that row rather than this tier.

Full per-book threshold table at /v1/meta/per-book-sla. Live operator dashboard at /uptime. Historical hourly observation rate at /v1/historical/source-quality.csv?source=underdog.

Related

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