Honori Koyama vs Kallista Liu — W15 Phan Thiet Round of 32

W15 Phan Thiet · CHALLENGER · Round of 32
JPN
Honori Koyama
#1369WTA
Last 10 · pre-match
LLLWWLWLWL
0 — 0
Sets
Monday, 10 November 2025
hard
USA
Kallista Liu
#958WTA
22 yrs
Last 10 · pre-match
LLWWLLLWWW
Koyama H.
6-3 6-3
Liu K.
Koyama H.
662
Liu K.
33–

Honori Koyama defeated Kallista Liu 6-3 6-3 in the W15 Phan Thiet round of 32 on hard.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Koyama H.serving43% hold

wins 47% of points on serve vs Liu K.

Liu K.serving38% hold

wins 45% of points on serve vs Koyama H.

Baseline battle — serve is shaky, expect plenty of breaks

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Statistics

This season
Koyama H.Liu K.
1st serve in·Even
68%
70%
1st serve points won·Slight edge
57%
52%
2nd serve points won·Even
38%
42%
Service points won·Even
51%
49%
Return points won·Even
45%
45%
Break points saved·Slight edge
55%
48%
Aces / match·Slight edge
1.1
0.3
Double faults / match·Dominant
4.9
1.3

Averages over each player's completed matches in the selected window (17 vs 24). ATP, WTA & Challenger.

Umpiry Score

Pre-match
Koyama H.
3.8
Heavy underdogUmpiry ScorePartial · surface data limited
  • Extended break: 70 days (−1.2)
Liu K.
5.3
Clear underdogUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0
2.5
Surface form
2.0
0.0Lost last 3
Win streak
0.0Lost last 7
Context
5.0
Defending pts
5.0

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

Conditions

Court speed
Medium-fastrewards aggression
SlowFast

Draw

Final
Wang J.
Inisan E.
6-06-4
Goto R.
Shek C.
4-66-46-3
Semi-finals
Wang J.
Zhu A.
6-46-2
Shek C.
Inisan E.
2-66-36-1
Goto R.
Matsuda R.
6-37-5
Quarter-finals
Morvayova V.
Goto R.
6-06-3
Wang J.
Nagata A.
6-46-2
Inisan E.
Matsuda R.
6-36-1
Shek C.
Desai Z.
6-27-66
Matsuda R.
Nagata A.
6-36-2
Inisan E.
Wang J.
2-66-42-1
Goto R.
Oigawa S.
6-06-1
R16
Wang J.
Lee E.
3-66-16-2
Morvayova V.
Nguyen K.
6-46-4
Matsuda R.
Mpetshi Perricard D.
6-36-747-63
Goto R.
Kang N.
6-36-3
Sidorova K.
Choi S.
6-46-1
Nagata A.
Koyama H.
7-656-0
Zhu A.
Wan E.
6-26-757-5
Inisan E.
Uemura M.
6-16-1
Oigawa S.
Wan E.
6-17-64
Nagata A.
Nitture A.
6-46-3
Inisan E.
Choi S.
6-26-4
Desai Z.
Mpetshi Perricard D.
6-36-3
Goto R.
Koyama H.
6-17-5
Wang J.
Kang N.
6-06-2
Shek C.
Smith A.
6-36-0
Matsuda R.
Im H.
6-06-4
R32
Nguyen K.
Shin J.
6-27-63
Wan E.
Eto N.
6-16-2
Uemura M.
Mikhailova M.
6-14-66-2
Sidorova K.
Oigawa S.
6-36-2
Lee E.
Oh J.
6-36-2
Matsuda R.
Moon J.
4-66-16-0
Wang J.
Yang C.
6-26-1
Zhu A.
Naik A.
6-16-0
Goto R.
Onozawa N.
6-36-3
Kang N.
Di Tommaso C.
6-26-2
Choi S.
Dao U.
6-06-1
Koyama H.
Liu K.
6-36-3
Inisan E.
Leong S.
7-656-4
Mpetshi Perricard D.
Smith A.
6-756-46-2
Nagata A.
Adkar V.
4-2
Morvayova V.
Tran Tchouassi N.
6-36-0
Wang J.
Tran Tchouassi N.
6-16-0
Kang N.
Chea J.
6-06-0
Im H.
Nguyen Thi M.
6-26-3
Shek C.
Nguyen K.
6-36-2
Matsuda R.
Leong S.
7-656-1
Koyama H.
Mikhailova M.
6-36-4
Smith A.
Hsieh S.
6-26-0
Nagata A.
Nie X.
6-26-4
Goto R.
Behera D.
6-16-1
Choi S.
Liu K.
7-56-2
Oigawa S.
Ramesh J.
6-46-0
Mpetshi Perricard D.
Moon J.
6-26-4
Inisan E.
Shin J.
6-46-2
Nitture A.
Chen Y.
6-44-66-4
Desai Z.
Eto N.
6-16-0
Wan E.
Adkar V.
3-66-36-4