Sloane Stephens vs. Janice Tjen prediction, odds, picks for WTA Guadalajara Open 2026

Using powerful machine learning and data, we have re-simulated the outcome of Tuesday's Stephens-Tjen women's singles match, forming part of our tennis predictions coverage.

Our famous predictive model currently gives Tjen a 51% chance of beating Stephens at the WTA Guadalajara Open tournament. Additionally, Tjen has a 51% chance of winning the first set, while the over 21.5 games has a 52% chance of hitting, according to our model.

Latest betting odds

We have sourced the most up-to-date betting odds in America for this match, which are listed here:

• Moneyline: Janice Tjen -134, Sloane Stephens +120
• First Set: Stephens +100, Tjen -125

All odds are correct at the time of publication and are subject to change.

Model picks and best bet

After matching our predictions against the best available odds, we can reveal our picks for each of the major markets in this matchup. Plus, find our best bet for the game below:

• Moneyline: Stephens @ +120 via DraftKings
• First Set: Tjen @ -105 via DraftKings

According to our tennis best bets, the top play to make on this match is Sloane Stephens to win.

Although Stephens is less than likely to win, she provides the best value at the current available odds.

These picks are based on our probabilities matched against the implied probabilities from the current available odds.

Game info & first serve details

The WTA Guadalajara Open match between Sloane Stephens and Janice Tjen is scheduled to commence on Tuesday at 8:10 PM ET.

• Who: Sloane Stephens vs. Janice Tjen
• Date: Tuesday, September 15, 2026
• Approx. Time: 8:10 PM ET/5:10PM PT
• Tournament: WTA Guadalajara, Mexico Women's Singles 2026
• Round: Round of 16

All dates and times mentioned in this article are United States Eastern Time unless otherwise stated.

Conclusion

We predict Janice Tjen, with a 51% win probability, will likely beat Sloane Stephens at the WTA Guadalajara Open tournament.

Additional tools and information for betting safely can be found in our Responsible Gambling hub.

This article's predictions and probabilities are generated by Dimers' proprietary Tennis prediction model. Our editorial team reviews the resulting content for accuracy and presentation before publication.