Best WNBA Player Props Today: Picks & Predictions: Monday, Sept. 21

Sean Tomlinson - Betting Analyst at Covers.com
Sean Tomlinson • Betting Analyst 16+ years betting experience
Updated: Sep 21, 2026 , 04:44 PM ET • 4 min read

Kahleah Copper and Allisha Gray highlight our top WNBA player props today.

Kahleah Copper Phoenix Mercury WNBA
Photo By - Reuters Connect. Phoenix Mercury guard Kahleah Copper on the court.

It's a short two-game slate tonight in the W, but there are still plenty of appealing opportunities to cash in as part of our WNBA player props.

These plays from our experts are all part of the WNBA picks we're lining up for Monday, Sept. 21.

WNBA player props today

For help understanding Kalshi probabilities, see our odds calculator.

Pick Kalshi
Probability
Dream Allisha Gray Over 1.5 3-pointers 55%
Mercury Kahleah Copper 20+ points 49%
Mercury Alyssa Thomas Over 7.5 assists 58%

Percentages courtesy of Kalshi, one of the best prediction market apps.

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Dream vs Liberty prop: Allisha Gray Over 1.5 3-pointers

Kalshi probability: 55%

There are plenty of mouths to feed in the Atlanta Dream's offense, but Allisha Gray remains the No. 1 option — and that should translate to more 3-point sniping tonight.

Gray has nailed 2+ triples in eight of her last 10 games, and she made her 3-pointers at a 44% clip in August. Plus, she'll be fresh after logging a combined 50 minutes in the Dream's victories last week.

The New York Liberty frontcourt is happiest with one foot in the paint, so expect Gray to have ample room to fire from deep if she gets a slower defender on a switch.

Check out Tom Oldfield's full Dream vs. Liberty predictions.

Wings vs Mercury prop: Kahleah Copper 20+ points

Kalshi probability: 49%

Kahleah Copper is averaging a career-best 21.3 ppg, and she’s scored 20+ in half of her 38 appearances for the Phoenix Mercury. Copper’s home/road splits have been cavernous: 24.6 ppg at home vs. 18 on the road.

Copper has hit the Over on this line in 12 of 19 games in Phoenix, and before her three-game absence, she averaged 30.7 points across her last three home outings.

The Dallas Wings have surrendered only 79.7 points per game at home (second-fewest), but they’ve given up the sixth-most on the road at 91. Dallas’ defensive rating is second at home and 14th on the road, setting Copper up with a favorable matchup. Play to 55%.

Check out Zak Hanshew's full Wings vs. Mercury predictions.

Wings vs Mercury prop: Alyssa Thomas Over 7.5 assists

Kalshi probability: 58%

With 8.4 assists per game, Alyssa Thomas trails only Caitlin Clark (8.5) for the league lead. She’s handed out eight more dimes in 26 of 40 games overall and 13 of 20 games at home, good for 65%.

Thomas leads the W in assists over her last eight games, averaging 9.4 per tilt and hitting the Over on this line seven times. In that span, she’s reached at least eight assists in five straight home games.

She produced 10 and 11 dimes in two tilts at Dallas, and the Wings’ defense is more generous on the road, allowing the eighth-most assists. This is playable to 9.5, making it a strong value.

Check out Zak Hanshew's full Wings vs. Mercury predictions.

How to trade WNBA player props today

Player props allow WNBA fans to trade on a player’s total points, assists, rebounds, 3-pointers made, and a number of individual statistics like combo markets.

Just like standard Over/Under odds, prediction markets like Kalshi will set a projected total number for those stats, and traders can predict whether the player or team will have Over or Under that total.

What is Kalshi?

Kalshi is a federally regulated platform for trading event outcomes on prediction markets. Traders can buy and sell simple, transparent contracts that settle based on the outcome of real-world events. Markets revolve around a yes/no proposition, with prices adjusting dynamically based on traders’ perceived probability that the event will occur. When the event concludes, if you are correct, the contract “honors” at a predetermined price; if you are incorrect, it expires at $0.

WNBA player props FAQs

What are the best WNBA player props today?

  • Allisha Gray Over 1.5 3-pointers
  • Kahleah Copper 20+ points
  • Alyssa Thomas Over 7.5 assists

Where can I trade on WNBA player props?

Kalshi is a regulated prediction market that is federally legal in all 50 states.

Odds are correct at the time of publishing and are subject to change.
Not intended for use in MA.
Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.

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Sean Tomlinson - Covers
Betting Analyst

Sean Tomlinson has been navigating the sports media landscape since 2009, officially joining Sportsbook Review in 2021. Over the years, his commentary has been cited by major outlets such as The New York Times and Forbes, and he has regularly discussed his NFL insight as a guest on TSN 1050 and The Fan 590. An active bettor who places wagers on a daily basis, Sean spreads his action across several platforms, consistently favoring FanDuel and bet365 for their user-friendly interfaces. His primary handicapping focus centers on the NFL, MLB, and Formula 1, with a heavy emphasis on locating high-value prop opportunities. Sean maintains a keen interest in political prediction markets too, closely monitoring candidate odds throughout primary runs and general election cycles. He views sports betting as an interactive lens for deeper analysis, applying that exact philosophy to his editorial work. He holds a degree in media studies from the University of Guelph-Humber—a background that previously led to editorial roles at Bleacher Report and theScore.

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