Jason Jung vs James DuckworthShenzhen CH Round of 16

Shenzhen CH · CHALLENGER · Round of 16
#896ATP
1420ELO
1389Hard ELO
37 yrs · 180 cm · Right-handed
Last 10 · pre-match
LWWWLLLLLL
2 — 1
Sets
Monday, 9 October 2023
hard
#74ATP
1628ELO
1592Hard ELO
$485kYTD
$5.4MCAREER
34 yrs · 183 cm · Right-handed
Last 10 · pre-match
LWLLLWLWLL
Jung J.
3-6 7-5 6-2
Duckworth J.
Jung J.
3762
Duckworth J.
6521

Jason Jung defeated James Duckworth 3-6 7-5 6-2 in the Shenzhen CH round of 16 on hard. The upset overturned the form book — James Duckworth came in ranked #74.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Jung J.serving82% hold

wins 64% of points on serve vs Duckworth J.

Duckworth J.serving85% hold

wins 66% of points on serve vs Jung J.

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

Serve & return on hard

Jung J.Duckworth J.
Serve
25
Return
23

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
1st serve in·Slight edge
65%
58%
1st serve points won·Slight edge
67%
76%
2nd serve points won·Slight edge
50%
55%
Service points won·Slight edge
61%
67%
Return points won·Even
40%
36%
Break points saved·Slight edge
56%
67%
Aces / match·Dominant
2.6
7.3
Double faults / match·Even
2.6
2.5

Averages over each player's completed matches in the selected window (74 vs 200). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Dominant
21
55
Break points saved·Dominant
64
97
Break points won·Even
8
4
Deciding sets·Dominant
21
78
Tiebreaks·Even
69
72

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Umpiry Score

Pre-match
6.3
Marginal edgeUmpiry ScorePartial · surface data limited
6.5
Marginal edgeUmpiry ScorePartial · surface data limited
Form & Matchup
5.0No prior meetings
H2H
5.0
5.8
Surface form
6.1
0.0
Win streak
Fatigue & Travel
8.8
Minutes 14d
6.6
7.0
3-set count
7.0
8.0
Prev. match
8.0
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.

Freshness

Recent load
Freshness·Clear edge
78
91

Jung J.: 5 days rest · 3 matches, 61 games (7d) · Duckworth J.: 12 days rest · 2 matches (14d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast