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_nfl (25 markets)

• player_assists 29,544 rows
• player_anytime_td 27,423 rows
• player_rush___rec_tds_1st_half 21,953 rows
• player_receptions 17,275 rows
• player_rec_yds 17,264 rows
• player_longest_rec 17,158 rows
• player_sacks 17,106 rows
• player_rec_yards_1st_half 17,046 rows
• player_receptions_1st_half 16,950 rows
• player_receptions_1st_quarter 16,933 rows
• player_rec_yards_1st_quarter 16,915 rows
• player_rush___rec_tds_1st_quarter 16,186 rows
• player_first_td 15,517 rows
• player_solo_tackles 14,756 rows
• player_points 13,942 rows
• player_defensive_ints 11,967 rows
• player_targets 11,635 rows
• player_fumbles_lost 10,605 rows
• player_longest_rush 7,253 rows
• player_rush_yards_1st_half 7,182 rows

basketball_nba (5 markets)

• player_steals 5,088 rows
• player_pra 4,570 rows
• player_rebounds 4,372 rows
• player_points 4,135 rows
• player_threes 4,126 rows

esports_cs2 (2 markets)

• player_kills_on_maps_1_2 10,140 rows
• player_shots_on_goal 9,221 rows

esports_dota_2 (2 markets)

• player_points 3,523 rows
• player_kills_on_maps_1_2 3,470 rows

esports_lol (2 markets)

• player_points 5,208 rows
• player_assists 5,205 rows

icehockey_nhl (8 markets)

• player_anytime_goal 17,697 rows
• player_shots_on_goal 16,016 rows
• player_points 11,839 rows
• player_plus_minus 9,848 rows
• player_assists 7,547 rows
• player_goals 7,213 rows
• player_power_play_points 4,320 rows
• player_blocked_shots 3,443 rows

motorsports (1 markets)

• player_finishing_position 3,520 rows

soccer_other (8 markets)

• player_goals_assists 29,855 rows
• player_goals 21,118 rows
• player_assists 18,819 rows
• player_shots_on_target 16,489 rows
• player_first_goal_scorer 12,390 rows
• player_shots_on_goal 11,349 rows
• player_last_goal_scorer 11,009 rows
• player_goals_1st_half 6,416 rows

tennis_other (7 markets)

• player_1st_set_games_won 10,064 rows
• player_sets_won 7,255 rows
• player_games_won 6,407 rows
• player_sets_played 4,699 rows
• player_tiebreakers_played 4,053 rows
• player_games_played 3,989 rows
• player_1st_set_games_played 3,923 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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