Hertogenbosch & Stuttgart predictions, June 6, 2026: Jong vs. Mochizuki, Galarneau vs. Hsu

Jesper De Jong and Shintaro Mochizuki meet in the semifinal at Hertogenbosch on Saturday. Jesper De Jong has won 4 of the last 10. Shintaro Mochizuki has dropped 7 straight and sits at 2-8 over the last ten.

There is no history here: this is their first tour-level meeting.

Hold strength tells the story — 71.8% versus 67% on first-serve points in Jong's favor. This one is close to a coin flip, and the lean toward Jong is exactly that — a lean.

A spot in the next round is at stake on Saturday, when Alexis Galarneau goes up against Yu Hsiou Hsu in the Stuttgart semifinal. Yu Hsiou Hsu has won 4 of the last 10. Alexis Galarneau limps in on a 2-match losing skid, just 3 wins in 10.

There is no history here: this is their first tour-level meeting.

The underlying stats are tight across the board — this is a matchup decided by a handful of points. Expect resistance, but the match-level math tilts clearly toward Hsu.

A spot in the next round is at stake on Saturday, when Marc Andrea Huesler goes up against Nikoloz Basilashvili in the Stuttgart semifinal. Nikoloz Basilashvili is rolling — 3 straight wins, 4 of 10 in recent play. Marc Andrea Huesler is 3-7 across recent matches.

Marc Andrea Huesler leads the head-to-head 1-0, and history has a way of mattering in matchups like this one.

Nikoloz Basilashvili is clearly higher-rated on grass — our number puts Basilashvili around 52%. A tiebreak or two would surprise nobody, with Basilashvili fractionally more likely to land the big points.

A spot in the next round is at stake on Saturday, when Mikhail Biryukov goes up against Roman Safiullin in the Stuttgart semifinal. Roman Safiullin comes in at 4 wins from the last ten. Mikhail Biryukov comes in at 0 wins from the last ten.

There is no history here: this is their first tour-level meeting.

Safiullin's 72.7% behind the first serve (against 46% for Biryukov) means break chances should be scarce in one direction. Safiullin should have enough here, though Biryukov has the tools to make the scoreboard uncomfortable.

Robin Montgomery and Yue Yuan meet in the semifinal at Hertogenbosch on Saturday. Robin Montgomery has dropped 3 straight and sits at 3-7 over the last ten. Yue Yuan comes in at 5 wins from the last ten.

This is the first career meeting between the two, which means no head-to-head baggage on either side of the net.

Hold strength tells the story — 65.7% versus 62.5% on first-serve points in Montgomery's favor. Yuan needs several things to break right at once; the percentages say they usually don't.

A spot in the next round is at stake on Saturday, when Benjamin Bonzi goes up against Marc Polmans in the Hertogenbosch semifinal. Benjamin Bonzi has won 5 of the last 10. Marc Polmans is searching for form, having lost 2 in a row (3 of the last 10).

The two have never played — a first meeting always adds a layer of uncertainty the numbers can't fully capture.

The serve is where this match separates: Bonzi has been winning 70.6% of first-serve points to Polmans's 65.2%, and on grass that gap compounds fast. Anything other than a Bonzi win would rank among the bigger surprises of the week.

Saturday's Hertogenbosch semifinal pits Coleman Wong against James Mccabe on grass. Coleman Wong comes in at 5 wins from the last ten. James Mccabe is searching for form, having lost 3 in a row (1 of the last 10).

This is the first career meeting between the two, which means no head-to-head baggage on either side of the net.

Coleman Wong simply rates much higher on grass, and our number follows from it. Mccabe needs several things to break right at once; the percentages say they usually don't.