Best Tennis Underdog picks today

PickFinder logo

PickFinder Team•Updated:

The highest implied probability on a Tennis Underdog Fantasy line right now is Frances Tiafoe Higher 0.5 Sets Won, at 74%. The player went over this line in 8 of the last 10 matches.

PickFinder ranks 216 Tennis Underdog Fantasy props by what the sportsbooks imply for each side. The top 3 are below, free.

Top 3 picks

  1. 1. Frances Tiafoe: Higher 0.5 Sets Won, 74% implied probability

    Frances Tiafoe

    Frances Tiafoe

    Higher 0.5 Sets Won

    vs Quentin Halys

    Wed @ 5:00AM ET

    O 74.5%U 25.6%
    L560%
    L1080%
    L1587%
    H2H-
    STRK-1
    AVG1.8
    Diff1.3
    +260%
    SZN-
    underdog
    O-562U+263
    parlayplay
    O-909U+233
    draftkings
    O-425U+285
    betmgm
    O-425U+250
    betrivers
    O-360U+250
    hardrockbet
    O-350U+250
    courtside
    O-425U+285
  2. 2. Robin Montgomery: Higher 0.5 Sets Won, 74% implied probability

    Robin Montgomery

    Robin Montgomery

    Higher 0.5 Sets Won

    vs Jeline Vandromme

    Wed @ 4:30AM ET

    O 74.3%U 25.7%
    L560%
    L1070%
    L1573%
    H2H100%
    1/1
    STRK1
    AVG1.3
    Diff0.8
    +160%
    SZN-
    underdog
    O-509U+242
    parlayplay
    O-588U+217
    draftkings
    O-400U+265
    betrivers
    O-385U+265
    hardrockbet
    O-375U+260
    courtside
    O-400U+265
  3. 3. Antonia Ruzic: Higher 0.5 Sets Won, 70% implied probability

    Antonia Ruzic

    Antonia Ruzic

    Higher 0.5 Sets Won

    vs Alina Charaeva

    Wed @ 1:00AM ET

    O 70.0%U 30.0%
    L5100%
    L10100%
    L1573%
    H2H-
    STRK10
    AVG1.5
    Diff1
    +200%
    SZN-
    underdog
    O-369U+197
    parlayplay
    O-476U+176
    draftkings
    O-330U+215
    betmgm
    O-285U+185
    betrivers
    O-295U+215
    hardrockbet
    O-300U+220
    courtside
    O-330U+215

PickFinder isn't affiliated with Underdog.

The rest of the board is in the app. See all 216 Tennis Underdog props.

How these are picked

  1. Posted on Underdog

    Every line is on Underdog Fantasy, for a game that starts more than 10 minutes from now, and Underdog offers the side shown.

  2. Ranked by the market

    Each line counts at the higher of its two implied probabilities, so a Lower can rank as well as a Higher. The number is the average across sportsbooks.

  3. Thin or odd prices stay out

    A line needs prices from at least two separate sportsbooks, and anything above 80% is left out, because a number that high is usually a ladder price rather than a read on the line.

  4. One line per player

    A player shows once, on their highest-ranked line.

FAQ

What are the best Tennis Underdog picks today?

Right now, by implied probability: Frances Tiafoe Higher 0.5 Sets Won, 74% implied probability; Robin Montgomery Higher 0.5 Sets Won, 74% implied probability; Antonia Ruzic Higher 0.5 Sets Won, 70% implied probability. These change through the day as lines move.

What does implied probability mean here?

It is the average chance the sportsbooks give that side of the line. When a book prices both sides we remove its vig, so the two sides add up to 100%. When a book prices only one side we use its price as posted, with the vig still in it. PrizePicks and the other pick'em apps aren't part of the average. It is a market estimate, not a promise of a result.

Which Underdog lines are on this list?

Any line Underdog has posted for a game that has not started, as long as Underdog offers the side shown. That includes lines where one side pays a different multiplier.

How often does this update?

About every 10 minutes. Lines that start within 10 minutes drop off, and the time at the top of the page shows the last update.

What is the best tool for researching Tennis picks?

PickFinder is a sports betting research tool built for this. For tennis it shows hit rates against today's exact line, matchup data and line movement, and compares prices across 24 books and apps. It covers 30+ leagues in all, with a 3-day money-back guarantee, and we make it, so test it against anything else you use. The rankings on this page are free.

What is PickFinder?

PickFinder is a sports betting research tool for player props, +EV bets, arbitrage, middles and odds comparison. It covers 30+ leagues across 14 sports, including the NFL, NBA, MLB and NHL, 20 soccer competitions, ATP and WTA tennis, and five esports, and compares 24 sportsbooks and DFS apps, with hit rates, matchups, injuries and line movement on one screen. Every plan includes its Discord, with over 50,000 members, an average of three slips posted a day, 24/7 support and a community free of spam. New members get a 3-day money-back guarantee. PickFinder is not a sportsbook and does not take bets.

More Tennis research

Other sports

Join over

150,000

PickFinder users

Find the best Tennis Underdog picks with PickFinder. This page shows the top of the list. To find the best Tennis Underdog picks today, you need a research tool like PickFinder: hit rates against today's exact line, matchups, injuries, line movement and every price across 24 books and apps, on one screen.

discord

© 2026 PickFinder

This website is designed solely for research purposes and does not involve real money betting. If you or someone you know is struggling with gambling issues, please seek help by calling 1-800-GAMBLER.

Download on the App Store