── the model's take · from Elo · neutral court
Win probability
The model makes Zhizhen Zhang a slight 56% favourite on a neutral court; the surface splits below move it.
J J Wolf
Zhizhen Zhang
44%56%
Hard: 58% / 42%
Clay: 15% / 85%
Grass: 45% / 55%
An analytical read from the model's Elo — not a betting signal.
── who holds the edge · vs the rated field
Serve & return matchup
Serve
J J Wolf
16th · poor
Zhizhen Zhang
42th · average
Return
J J Wolf
39th · below avg
Zhizhen Zhang
11th · poor
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
#179
model rank
#162
Hard
best surface
Clay
Right
hand
Right
USA
country
CHN
183cm
height
193cm
── model Elo over time
Trajectories
■ J J Wolf■ Zhizhen Zhang
── meetings by surface
Surface record
Hard1–1
Clay0–1
── 3 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2026-07-27 | Vancouver CH | Hard | R32 | J J Wolf | 7-6(3) 3-6 6-4 |
| 2023-08-28 | Us Open | Hard | R128 | Zhizhen Zhang | 7-5 7-5 6-7(5) 4-6 6-3 |
| 2022-04-18 | Tallahassee CH | Clay | QF | Zhizhen Zhang | 6-3 3-6 7-6(2) |