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Head-to-Head

James Duckworth vs Jason KublerPrediction, Head-to-Head Results, and Stats

James Duckworth

🇦🇺James Duckworth

#64 · 34 yrs · R

44
3–1

4 meetings · sets 6–3

Jason Kubler

🇦🇺Jason Kubler

#540 · 33 yrs · R

31w

James Duckworth and Jason Kubler have met 4 times since 2018; James Duckworth leads 3–1. Their first meeting came at Washington in 2018 on hard. On hard courts Duckworth leads 2–0. Across all meetings Duckworth has taken 6 sets to Kubler's 3. Their most recent meeting: James Duckworth won at Sydney Challenger (2025).

Spread & Straight-Sets Form

Completed best-of-3 matches · Last 12 months

IndicatorDuckworthKubler
Wins in straight sets71%91%
Wins a set when losing38%50%
Goes to a deciding set33%15%
Covers −1.5 sets as favorite58%67%
Covers +1.5 sets as underdog59%67%
Tiebreak sets won43%—
Wins after taking set 180%100%
Wins 2-0 after taking set 177%91%

Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 3 of 4 completed meetings ended in straight sets (Duckworth 2, Kubler 1).

Style Matchup

Playing styles and historical archetype record

Duckworth

🤖 Servebot

High ace rateDominant serviceWeaker returnBig first serve
vs

Kubler

👑 The Complete Package

Elite serve & returnHigh BP conversionAll-surface dominanceClutch performer

Matchup analysis

🤖 Servebot vs 👑 The Complete Package is historically tight (52% vs 48%, 1,511 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.

Previous meetings

4 career meetings, newest first

Nov 22, 2025

Sydney Challenger

H Hard · Semifinals

75
62
Duckworth

Jul 15, 2022

Hall of Fame Open - Newport

G Grass · Quarterfinals

57
637
Kubler

Apr 12, 2019

Anning

C Clay · Round of 16

75
7765
Duckworth

Aug 1, 2018

Washington

H Hard · Round of 32

16
62
7765
Duckworth

Player ROI

Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days

MetricDuckworthKubler
W-L8–7-
Avg odds2.54-
ROI %+10.5%-
Units P/L+1.58u-

Travel

Last 30 days

MetricDuckworthKubler
Countries1—
Events2—
Matches2—
Distance1,032 mi · 1,661 km—
RouteCHN—

Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.

Common opponents

Results vs. opponents both players faced · Last 12 months

Kubler has a higher win rate against shared opponents (100% vs Duckworth's 0%).

OpponentDuckworthKubler
Alex Bolt
L
57
16
W
75
63

Recent Form

Last five matches per player

Duckworth
LLLLWLWW
L

Hubert Hurkacz

Shanghai Rolex Masters - Shanghai · 1st Round

36
647

Oct 8

L

Lorenzo Sonego

Chengdu Open - Chengdu · 1st Round

46
46

Sep 24

L

Kamil Majchrzak

Davis Cup, Group I, 1R, AUS-POL 3-1 · Rubber 2

62
36
36

Sep 19

L

Yibing Wu

U.S. Open - New York · 2nd Round

57
36
16

Sep 3

W

Matteo Arnaldi

U.S. Open - New York · 1st Round

57
63
62
768

Aug 31

L

Arthur Fery

Winston-Salem Open - Winston-Salem · Semifinals

Aug 29

W

Fabian Marozsan

Winston-Salem Open - Winston-Salem · Quarterfinals

647
62
64

Aug 28

W

Lorenzo Sonego

Winston-Salem Open - Winston-Salem · 3rd Round

75
63

Aug 27

Kubler
LWWWWWWL
L

Jamie Mackenzie

M25 Timaru 1 · Quarterfinals

Mar 13

W

Mikal Statham

M25 Timaru 1 · 2nd Round

62
61

Mar 12

W

Mikal Oliver Statham

M25 Timaru · Round of 16

62
61

Mar 12

W

Luca Bland

M25 Timaru · Round of 32

61
60

Mar 11

W

Luca Bland

M25 Timaru 1 · 1st Round

61
60

Mar 10

W

Andy Murray

M25 Timaru 1 · 3rd Round Qualifying

60
60

Mar 9

W

Emilio Camacho

Davis Cup, World Group, Q, ECU-AUS 3-1 · Rubber 4

64
62

Feb 8

L

Frances Tiafoe

Australian Open - Melbourne · 1st Round

647
36
26

Jan 18

Rivalry momentum

Cumulative head-to-head lead over time

↑ DuckworthDuckworth ahead↓ Kubler

Win rate

Matches, sets and games won · Last 12 months · 14–71 matches

MetricDuckworthKubler
Matches won58%79%
Sets won55%74%
Games won52%61%

Record by tier

Head-to-head record by tournament tier

StageDuckworthKubler
ATP 50010
ATP 25001
ATP Challenger Tour20

By surface

Head-to-head record per surface

SurfaceDuckworthKubler
Hard20
Clay10
Grass01

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James Duckworth vs Jason Kubler FAQ

James Duckworth leads the head-to-head 3–1 over 4 meetings.