Yeon Woo Ku vs Rina Saigo — W15 Kashiwa Round of 16

W15 Kashiwa · CHALLENGER · Round of 16
KOR
Yeon Woo Ku
#207WTA
1362ELO
1341Hard ELO
23 yrs
Last 10
LLLLWWLLLL
0 — 0
Sets
Monday, 31 March 2025
hard
JPN
Rina Saigo
#306WTA
1216ELO
1204Hard ELO
25 yrs
Last 10
LLWLWLLLLL

Umpiry Score

Pre-match
Ku Y.
6.2
Even matchUmpiry Score
Saigo R.
5.3
Clear underdogUmpiry Score
Form & Matchup
6.7+138 Hard Elo edge
Surface ELO
3.3Hard Elo 1204
6.8Overall Elo 1362
ELO gap
3.2Overall Elo 1216
0.0
H2H
10.0
5.4
Surface form
2.4
Win streak
0.0
Fatigue & Travel
7.0
3-set count
7.0
Surface transition
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.

Ku Y.
662
Saigo R.
11–

Head to head

4–1
DateTournamentRoundSurfaceWinnerScore
2025-09-01W35 Nakhon PathomSFhardYeon Woo Ku6-2 6-4
2025-07-14W35 MonastirSFhardYeon Woo Ku6-3 6-1
2025-06-16W35 TaipeiFhardYeon Woo Ku6-1 6-4
2025-05-12W35 ChangwonR32hardYeon Woo Ku6-1 6-0
2024-07-29W35 RoehamptonR16hardRina Saigo2-6 6-2 6-4

Statistics

Recent form
Ku Y.Saigo R.
64%1st serve in+1%65%
60%1st serve points won+4%56%
48%2nd serve points won+5%43%
56%Service points won+5%51%
48%Return points won+5%43%
51%Break points saved+1%52%
1Aces / match1
2.9Double faults / match+0.43.3

Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.

Draw

Final
Shimizu A.
Ku Y.
6-36-3
Semi-finals
Ku Y.
Shimizu E.
6-26-4
Shimizu A.
Kuramochi M.
6-24-0
Quarter-finals
Ku Y.
Egorova D.
3-66-44-2
Shimizu E.
Yoshioka K.
6-36-1
Shimizu A.
Kobori M.
2-66-06-3
Kuramochi M.
Kawaguchi N.
1-66-36-3
R16
Kawaguchi N.
Rioux L.
6-07-64
Shimizu E.
Miyamoto A.
6-07-65
Kobori M.
Nishimura K.
6-36-4
Shimizu A.
Ohashi R.
6-26-2
Ku Y.
Saigo R.
6-16-1
Kuramochi M.
Sawashiro K.
6-26-2
Yoshioka K.
Kitahara Y.
3-67-57-66
Egorova D.
Mushika M.
7-667-66
R32
Saigo R.
Kikawada R.
6-06-2
Shimizu A.
Chikaraishi Y.
6-16-1
Egorova D.
Noguchi S.
6-36-2
Ku Y.
Higashitani N.
6-26-2
Kawaguchi N.
Sato N.
6-26-3
Yoshioka K.
Komada Y.
3-67-57-5
Rioux L.
Muramatsu C.
6-36-4
Kitahara Y.
Arakawa H.
7-656-4
Nishimura K.
Arakawa N.
4-66-36-4
Kobori M.
Kobayashi H.
6-23-66-2
Miyamoto A.
Usui K.
6-46-3
Shimizu E.
Kawagishi N.
6-06-0
Mushika M.
Katsumi N.
4-66-46-1
Ohashi R.
Tamura K.
4-66-46-4
Sawashiro K.
Kawamura M.
3-66-36-3
Kuramochi M.
Yang Y.
6-46-1