Petr Bar Biryukov vs Ji Sung Nam — Gwangju CH Qualifying Round 1

Gwangju CH · CHALLENGER · Qualifying Round 1
RUS11
Petr Bar Biryukov
#285ATP
1414ELO
1418Hard ELO
24 yrs · 196 cm · Left-handed
Last 10 · pre-match
LLLWWWWWWW
0 — 0
Sets
Retired
Monday, 21 April 2025
hard
KOR
Ji Sung Nam
32 yrs · 183 cm · Right-handed
Last 10 · pre-match
LLLLLWWLLL
Bar Biryukov P.
6-7 5-1
Nam J.
Bar Biryukov P.
625–
Nam J.
771–

Petr Bar Biryukov advanced when Ji Sung Nam retired 6-7 5-1 in the Gwangju CH qualifying round 1.

Head to head

No previous meetings on record.

Serve vs return

This season
Bar Biryukov P.serving82% hold

wins 64% of points on serve vs Nam J.

Nam J.serving85% hold

wins 66% of points on serve vs Bar Biryukov P.

Even serve battle

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
Bar Biryukov P.Nam J.
1st serve in·Even
60%
58%
1st serve points won·Slight edge
76%
67%
2nd serve points won·Even
50%
50%
Service points won·Slight edge
65%
60%
Return points won·Slight edge
33%
40%
Break points saved·Slight edge
65%
54%
Aces / match·Dominant
11.3
3.0
Double faults / match·Dominant
4.7
2.6

Averages over each player's completed matches in the selected window (68 vs 23). ATP, WTA & Challenger.

Umpiry Score

Pre-match
Bar Biryukov P.
6.5
Marginal edgeUmpiry ScorePartial · surface data limited
Nam J.
6.0
Even matchUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0
6.6
Surface form
3.7
0.0
Win streak
0.0Lost last 2
Fatigue & Travel
7.4
Minutes 14d
9.0
4.0
3-set count
8.0
Prev. match
8.0
Context
5.0
Defending pts
6.0

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-slowfavours grinders
SlowFast
Q2
Hsu Y.[2]
Bouzige M.
6-16-4
Simakin I.[8]
Durasovic V.[4]
6-26-2
Noguchi R.[5]
Samrej K.
6-46-4
Sharipov M.[6]
Ilagan A.
6-36-4
Uchida K.
Bai Y.[3]
W/O
Park U.
Bar Biryukov P.[11]
6-43-67-5
Q1
Bouzige M.
Nakagawa N.[12]
7-646-4
Park U.
Bolt A.[1]
6-35-76-4
Hsu Y.[2]
Roh H.
7-666-4
Bai Y.[3]
Lee D.
6-37-67
Simakin I.[8]
Campana Lee G.
6-46-4
Noguchi R.[5]
Rosenkranz M.
6-47-69
Samrej K.
Sun F.[7]
6-726-47-5
Ilagan A.
Langmo C.[10]
6-46-4
Bar Biryukov P.[11]
Nam J.
6-725-1
Uchida K.
Cui J.[9]
6-26-4
Durasovic V.[4]
Shin W.
6-737-636-0
Sharipov M.[6]
Jones H.
6-16-766-3