── the model's take · from Elo · neutral court
Win probability
Not enough rating data for a read.
── who holds the edge · vs the rated field
Serve & return matchup
Serve
Yasutaka Uchiyamainsufficient data
Zhizhen Zhang
49th · average
Return
Yasutaka Uchiyamainsufficient data
Zhizhen Zhang
15th · poor
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
—
model rank
#153
—
best surface
Clay
Right
hand
Right
JPN
country
CHN
183cm
height
193cm
── model Elo over time
Trajectories
■ Yasutaka Uchiyama■ Zhizhen Zhang
── meetings by surface
Surface record
Hard3–1
── 4 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2026-02-09 | Brisbane 2 CH | Hard | R16 | Zhizhen Zhang | 6-4 7-6(7) |
| 2020-02-24 | Dubai | Hard | Q1 | Yasutaka Uchiyama | 5-7 7-6(2) 2-2 RET |
| 2017-09-04 | Zhangjiagang CH | Hard | R32 | Yasutaka Uchiyama | 6-2 6-1 |
| 2013-09-02 | Shanghai CH | Hard | R32 | Yasutaka Uchiyama | 3-6 6-4 7-6(7) |