NBA Playoffs player props today: Wednesday's best props include Isaiah Hartenstein [5/20/2026]

Isaiah Hartenstein over 4.5 rebounds (-101)

• Edge: 10.9%
• Probability: 61.2%
• Projection: 6.5
• Game: Spurs vs. Thunder (8:30PM ET)

Our model has found value on Oklahoma City's Isaiah Hartenstein over 4.5 rebounds. A probability of 61.2% gives this play an edge of 10.9% at -101 odds.

Stephon Castle over 5.5 rebounds (+118)

• Edge: 6.8%
• Probability: 52.7%
• Projection: 6.0
• Game: Spurs vs. Thunder (8:30PM ET)

Stephon Castle’s rebounds prop shows a 6.8% edge at +118 odds, according to our model, which projects him for 6.0 rebounds on the over 5.5 line.

Devin Vassell over 4.5 rebounds (+125)

• Edge: 5.7%
• Probability: 50.1%
• Projection: 4.5
• Game: Spurs vs. Thunder (8:30PM ET)

The data highlights value on Devin Vassell over 4.5 rebounds, with simulations showing a 50.1% probability and a 5.7% edge at +125.

Jalen Williams over 1.5 steals (+169)

• Edge: 8.0%
• Probability: 45.2%
• Projection: 1.2
• Game: Spurs vs. Thunder (8:30PM ET)

Our model projects Jalen Williams to put up 1.2 steals today, creating an edge of 8.0% on the over 1.5 line at +169 odds.

Devin Vassell under 0.5 steals (+160)

• Edge: 5.2%
• Probability: 43.6%
• Projection: 1.0
• Game: Spurs vs. Thunder (8:30PM ET)

Simulations indicate value on Devin Vassell under 0.5 steals for San Antonio, showing an edge of 5.2% at +160 odds.

Stephon Castle under 0.5 steals (+165)

• Edge: 5.6%
• Probability: 43.3%
• Projection: 1.0
• Game: Spurs vs. Thunder (8:30PM ET)

Stephon Castle’s steals prop shows an edge of 5.6% at +165 odds, according to our model, which projects him for 1.0 today.

Dylan Harper under 0.5 steals (+163)

• Edge: 5.3%
• Probability: 43.3%
• Projection: 1.0
• Game: Spurs vs. Thunder (8:30PM ET)

Our model projects Dylan Harper for 1.0 steals for San Antonio, creating an edge of 5.3% on under 0.5 at +163 odds.

Victor Wembanyama under 0.5 steals (+173)

• Edge: 5.7%
• Probability: 42.3%
• Projection: 1.1
• Game: Spurs vs. Thunder (8:30PM ET)

Our expert modelling projects Victor Wembanyama for 1.1 steals, creating value on the under 0.5 line at +173 odds and a 5.7% edge.

NBA player prop summary: Wednesday, May 20, 2026

A quick summary of today’s top props by probability according to our model as of 12:24AM ET:

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Conclusion

For May 20, 2026, our NBA prop bets feature players such as Isaiah Hartenstein, Stephon Castle and Devin Vassell. Each pick is grounded in real-time data and advanced simulations to help you bet with clarity and purpose.

Built using automation and human oversight, this article draws on the latest data to deliver accurate, timely insights. If using this article for betting, Dimers encourages responsible gambling.