I like Mochizuki's game so glad to see him doing well this year. He's #99 in the live rankings, on the verge of breaking the top 100 for the first time, although he could still be overtaken. He's a former junior #1, the same age as Alcaraz who he beat in juniors, but it's been a long road for him climbing the rankings.
I've watched some of his matches in person at the Ilkley Challenger over the last few years. He plays a different game to most of the tour. He's only 5'9'' so he's at a disadvantage in terms of serve and power play, but he is excellent in terms of his anticipation, return skills and absorbing pace, he likes to net-rush and he has very good feel. A few years back, when I didn't know much about him, Max Mirnyi compared him to Fabrice Santoro, which caught my attention.
"Fabrice is a player who really utilised the power of the oncoming ball to him and also was very crafty with his hands. Just like Fabrice was fun to watch, Shintaro is one of them. He sees the court extremely in a different dimension. He uses the angles well, cuts them off well and likes to come into the net. He takes the ball early and he's got good feel with his hands."