Arianne Hartono vs Solana Sierra Preview & Prediction | 2025 SP Open (Sao Paulo Open) | First Round

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Arianne Hartono meets Solana Sierra in the first round in Sao Paulo.

Ranking points: WTA 250

Start date/time:

Venue: Parque Villa-Lobos, Sao Paulo, Brazil

Surface: Outdoor hard

How to watch on TV: UK – Sky Sports Tennis / US – Tennis Channel

How to watch online: UK – Sky Go / US – Tennis Channel

Arianne Hartono vs Solana Sierra prediction

Solana Sierra will hope to kick-start her season after a difficult run since she cracked the top 100 with a superb performance at Wimbledon.

The Argentine surged from qualifying to the round of 16 in SW19 but has since won just two of her last six outings.

First up here, she faces Dutch world number 170 Arianne Hartono, who enjoyed a semi-final run in a W100 in Evansville recently, but has yet to win a tour-level match this year. 

This will be their first meeting and Sierra, who sits at 82nd in the WTA standings, should have too much if she finds somewhere near her top gear on the day. 

Arianne Hartono vs Solana Sierra tip: Solana Sierra to win