── the model's take · from Elo · neutral court
Win probability
The model makes Chun Hsin Tseng 57% favourite on a neutral court; the surface splits below move it.
Yosuke Watanuki
Chun Hsin Tseng
43%57%
Hard: 61% / 39%
Clay: 34% / 66%
Grass: 89% / 11%
An analytical read from the model's Elo — not a betting signal.
── who holds the edge · vs the rated field
Serve & return matchup
Serve
Yosuke Watanuki
7th · poor
Chun Hsin Tseng
12th · poor
Return
Yosuke Watanuki
25th · below avg
Chun Hsin Tseng
40th · average
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
#182
model rank
#165
Clay
best surface
Clay
Right
hand
Right
JPN
country
TPE
180cm
height
175cm
── model Elo over time
Trajectories
■ Yosuke Watanuki■ Chun Hsin Tseng
── meetings by surface
Surface record
Hard1–1
── 2 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2026-08-31 | Zhangjiagang CH | Hard | R16 | Chun Hsin Tseng | 7-5 6-3 |
| 2025-11-10 | Kobe CH | Hard | SF | Yosuke Watanuki | 2-6 6-2 6-1 |

