── the model's take · from Elo · neutral court
Win probability
The model makes Learner Tien 82% favourite on a neutral court; the surface splits below move it.
Kei Nishikori
Learner Tien
18%82%
Hard: 22% / 78%
Clay: 39% / 61%
Grass: 81% / 19%
An analytical read from the model's Elo — not a betting signal.
── who holds the edge · vs the rated field
Serve & return matchup
Serve
Kei Nishikori
31th · below avg
Learner Tien
68th · average
Return
Kei Nishikori
77th · strong
Learner Tien
91th · elite
Model serve/return ratings as a percentile of the rated tour — the edge behind the win probability.
── head to head
Compare
#119
model rank
#17
Clay
best surface
Hard
Right
hand
Left
JPN
country
USA
178cm
height
180cm
── model Elo over time
Trajectories
■ Kei Nishikori■ Learner Tien
── meetings by surface
Surface record
Clay1–0
── 1 meetings
Every meeting
| date | tournament | surf | rd | winner | score |
|---|---|---|---|---|---|
| 2025-05-18 | Geneva | Clay | R32 | Kei Nishikori | 4-6 6-4 6-4 |