Jessica Shepard Under 15.5 Rebs + Asts: WNBA AI Pick for September 23, 2026
Rithmm is an AI sports betting research platform that helps everyday bettors read full WNBA slates with transparent model projections before they wager. The models surface win probability, Edge, and form across the last 5, 10, and 20 games so you can compare price to projection instead of guessing from a highlight clip.
On every prop you get the models, Edge, line shopping across DraftKings, FanDuel, BetMGM, Caesars, BetRivers, Hard Rock, Kalshi, Polymarket, Novig, and more, plus Scout, Rithmm’s AI sports betting analyst on Pro and Premium. Rithmm is available on web, iOS, and Android, with a 7-day free trial (credit card required). Choose Pro or Premium if you want to test Scout.
Edge is the gap between the models’ win chance and the sportsbook-implied price. Win probability is shown against the book-implied number so you can see whether the line still makes sense. Recommended and cautioned props stay on the same board with reasons attached, so you see the full slate rather than a shortlist of hype plays.
Tomorrow night’s featured AI sports picks read is a forward combo under that sits nearly two boards below the number with double-digit Edge.
Jessica Shepard Under 15.5 Rebs + Asts at Seattle
Dallas Wings forward Jessica Shepard visits the Seattle Storm on September 23. Tip is listed at 9:00 PM on the card. The prop is Under 15.5 Rebounds + Assists at −102. The Rithmm prop models project 13.8 rebounds plus assists, put a 55.7% win chance on the under, and show +10.5% Edge. The Bet Info bar reads Under 56% against Over 44%, the card is marked recommended, and the score sits at 8/10. Shepard has gone under 15.5 rebounds plus assists in 8 of her last 10 games.
Public context around the stretch is loud. Shepard just posted her WNBA-leading fifth triple-double of the season in a 97-77 win over the Sparks on September 17, then added another double-digit night as Dallas climbed the standings. A big-stat forward on a near even-money under can still be a value spot when the projection sits almost two boards under the posted 15.5 and the recent form on this exact combo is 8 of 10 unders.
What the models keep seeing on forward combo unders
When WNBA forwards land near coin-flip win chance on rebounds plus assists unders, the historical sample has paid. One forward under bucket in that coin-flip band is 17-13 across 30 bets, a 56.7% win rate and +12.4% ROI, holding steady rather than fading. Shepard’s card sits right in that pocket: 55.7% win chance, projection 13.8 against a 15.5 line, and +10.5% Edge after the juice at −102.
The story is the gap between the number and the projection. A 13.8 model mean against 15.5 leaves almost two full boards of cushion before the under fails, and the last-10 hit rate already shows 8 unders on this same line. That is the full read: projection well under the number, win chance in a historically positive forward under band, and Edge that clears double digits on the app card.
How to use this pick in Rithmm
Open Shepard’s rebounds plus assists prop and stay on Bet Info first. Confirm the 13.8 projection, the 55.7% win chance, the +10.5% Edge, and the under bar versus the −102 price. Check hit rate across the last 5, 10, and 20 games rather than a single hot stretch, then use line shopping to compare DraftKings, FanDuel, BetMGM, Caesars, BetRivers, Hard Rock, Kalshi, Polymarket, Novig, and more before you lock a number. If you want the plain-English walkthrough of why the under is preferred here, ask Scout on Pro or Premium.
This is one recommended prop on a full board. Rithmm still shows cautioned plays with reasons, so you can fade or pass with the same data stack instead of only seeing the green-star side of the slate.
Final card: Shepard Under 15.5 Rebs + Asts
Pick: Jessica Shepard Under 15.5 Rebounds + Assists (−102). Matchup: Wings at Storm, September 23, 9:00 PM. Models project 13.8 rebounds plus assists with a 55.7% win chance and +10.5% Edge. Under in 8 of her last 10. Recommended on the card at 8/10. The supporting forward under history in the coin-flip band has been 17-13 across 30 bets with a 56.7% win rate and +12.4% ROI.
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