Prediction of Jason Jung vs Grega Zemlja Head-to-Head, At

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
J. Jung vs G. Zemlja

Jason Jung

TPE

1

Win

Played

2

Win

Age

5'11" (180 cm)

Height

6'0" (183 cm)

856

C. Rank

Ret.

114

Best Rank

Total Titles

YTD Titles

$350.6K

Career Money

$553.6K

Right-Handed

Plays

Right-Handed

Grega Zemlja

SLO

1

Win

Played

2

Win

Age

5'11" (180 cm)

Height

6'0" (183 cm)

856

C. Rank

Ret.

114

Best Rank

Total Titles

YTD Titles

$350.6K

Career Money

$553.6K

Right-Handed

Plays

Right-Handed

Head-to-head: Jung 1 - 2 Zemlja

They have played 9 sets in total, with Jason Jung winning 4 and Grega Zemlja winning 5. The last match between Jason Jung and Grega Zemlja was at the Seoul Challenger, 12-05-2016, Round: R2, Surface: Hard, with Jason Jung getting the victory 6-2 4-6 7-5.

Players	Head To Head Match Wins
Jung	1
Zemlja	2

Last 3 H2H Matches:

(R2) Seoul Challenger(05-12-16)

Stats

Jason Jung

Grega Zemlja

(R2) Gwangju Challenger(04-14-16)

Stats

Grega Zemlja

Jason Jung

(R1) Dallas Challenger(02-02-16)

Stats

Grega Zemlja

Jason Jung

J. Jung vs G. Zemlja H2H Profile

J. Jung	Stats	G. Zemlja
$350,585	Career Prize Money	$553,570
55.44% (413-332)	Career Total W/L	58.56% (496-351)
1	Hard	1
0	Indoor	1
8	Titles	17
1	Total H2H Matches	2
0% (0-0)	YTD Win/Loss	0% (0-0)

J. Jung vs G. Zemlja Match Preview:

Second serve performance recent form: In recent form (last 6 months), Jason Jung has won 42.31% of points on their second serve, while Grega Zemlja has won 0%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Jason Jung, in recent form, has won 45.91% of their opponent's second serve points, while Grega Zemlja has won 0%. The same stats for first serve returns are 28.63% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Jason Jung has saved 50.98% of breakpoints in recent form, whereas Grega Zemlja has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Jason Jung has won 16.67% of matches played (W/L 1/5), with Grega Zemlja winning 0% (W/L 0/0) that gives us an overall head-to head prediction overview.
Best surface: Jason Jung has their best career surface win % on Hard, winning 58% (W/L 308/223), and worse career win % on Grass, winning 43% (W/L 20/26). Grega Zemlja has their best career surface win % on Clay, winning 58% (W/L 226/151), and worse career win % on I.hard, winning 56% (W/L 57/44).
Player level: In the last year, Jason Jung has played most of their matches on the Challengers/ITF tournaments > $10K, winning 16.67% of matches (W/L 1/5), where as Grega Zemlja has played most of their matches on the N/A, winning 0% of matches (W/L 0/0). When comparing stats between players to predict the favorite, it is of course all relative to the event level they have been playing at.
Direct H2H matches: They have played 3 times before with Jason Jung winning 1 times and Grega Zemlja being victorious 2 times. They have played 9 sets in total, with Jason Jung winning 4 and Grega Zemlja winning 5.
The last match between Jason Jung and Grega Zemlja was at the Seoul Challenger, 12-05-2016, Round: R2, Surface: Hard, with Jason Jung getting the victory 6-2 4-6 7-5.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:51:55.
Deciding set H2H prediction: Jason Jung and Grega Zemlja have played a deciding set 3 times, with Jason Jung winning 1 times and Grega Zemlja 2 times. Very useful for predicting the outcome if this match goes the distance.
Opponent quality stats: Over the last 12 months, Jason Jung has played against opponents with an average rank of 368.5 while Grega Zemlja has played against players with an average rank of 0.
Deciding set performance vs all players: If you are interested in live predictions and betting, if this match goes into a deciding set, Jason Jung has won 0% of deciding sets over the last 12 months, while Grega Zemlja has won 0% in all matches played on tour.
Break point conversion: In recent form, Jason Jung has converted 36.36% of breakpoint opportunities, and Grega Zemlja has converted 0% of their chances to break their opponents serve. A telling stat for in-game live betting tips when either player has a breakpoint opportunity.

Jason Jung vs Grega Zemlja Editorial Preview By TennisTipster88.

J. Jung vs G. Zemlja H2H Stats Used In Our Predictions

J. Jung	Stats	G. Zemlja
1	H2H Matches Won	2
4	Sets Won	5
44	Games Won	44
18	Aces (Total)	43
19	Total Double Faults	8
1:51:55	Average Match Time	1:51:55
56% (158/282)	1st Serve %	56% (147/264)
71% (112/158)	1st Serve Win %	73% (108/147)
44% (54/124)	2nd Serve Win %	49% (57/117)
50% (12/24)	Break Pts Won %	39% (11/28)
38% (99/264)	Return Points Win %	41% (116/282)
33% (1/3)	Best‑of‑3 Win %	67% (2/3)
33% (1/3)	Deciding Set Win %	67% (2/3)
50% (1/2)	1st Set Won, Won Match	100% (1/1)
50% (1/2)	1st Set Won, Lost Match	0% (0/1)
0% (0/1)	1st Set Lost, Won Match	50% (1/2)

Recent Performance Stats

J. Jung Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Suzhou Challenger - 20-10-2025
R1 James McCabeJ. McCabe	L	6-7(4) 6-4 6-2	Stats
Shenzhen Challenger - 13-10-2025
R2 Kaichi UchidaK. Uchida	L	6-3 2-0 ret.	Stats
R1 Kasidit SamrejK. Samrej	W	6-4 7-6(7)	Stats
Sumter Challenger - 11-08-2025
Q1 Strong KirchheimerS. Kirchheimer	L	6-3 5-4 ret.	Stats
Chicago Challenger - 04-08-2025
R1 Trevor SvajdaT. Svajda	L	6-3 7-6(7)	Stats

View All

G. Zemlja Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Portoroz Challenger - 07-08-2017
R2 Filip KrajinovicF. Krajinovic	L	6-2 6-3	Stats
R1 Grega BohG. Boh	W	6-1 6-2	Stats
Wimbledon - London - 03-07-2017
Q2 Teimuraz GabashviliT. Gabashvili	L	7-5 6-3	Stats
Q1 Ilya IvashkaI. Ivashka	W	7-6(8) 3-6 6-4	Stats
French Open - Paris - 29-05-2017
Q1 Santiago GiraldoS. Giraldo	L	6-1 6-4	Stats

View All

J. Jung vs G. Zemlja Stats Breakdown Vs All H2H Opponents

J. Jung	Stats	G. Zemlja
55.44% (413/332)	YTD Win/Loss	58.56% (496/351)
54.75% (946/782)	Sets Win/Loss	56.21% (1149/895)
52.01% (8566/7904)	Games Win/Loss	52.32% (10281/9369)
58.00% (308/223)	Hard Win/Loss	58.63% (163/115)
49.21% (31/32)	Clay Win/Loss	59.95% (226/151)
51.43% (54/51)	Indoor Hard W/L	54.68% (76/63)
43.48% (20/26)	Grass Win/Loss	58.49% (31/22)
0.24	Aces Per Game	0.26
1929	Aces Total	2545
0.2	Double Faults Per Game	0.1
1606	Total Double Faults	1009
1:12:35	Average Match Time	1st Match
565.71	Average Opponent Rank	600.3
63% (25368/40025)	1st Serve %	59% (16420/27761)
68% (17375/25368)	1st Serve Win %	72% (11887/16420)
51% (7500/14657)	2nd Serve Win %	50% (5636/11341)
40% (1583/3918)	Break Points Won % (Total)	41% (987/2413)
39% (15899/40670)	Return Points Win %	37% (10372/27769)
38.89% (14/22)	Slam W/L	51.52% (34/32)
18.18% (2/9)	Masters W/L	38.10% (8/13)
40.00% (2/3)	Cups W/L	55.56% (20/16)
46.25% (37/43)	Main Tour W/L	47.25% (43/48)
54.07% (239/203)	Challenger W/L	58.28% (250/179)
69.59% (119/52)	Futures W/L	69.12% (141/63)
57% (408/717)	Best of 3 Sets Win %	59% (461/779)
9% (2/22)	Best of 5 Sets Win %	52% (29/56)
51% (121/239)	Tiebreaks Win % (Total)	53% (161/306)
52% (112/216)	Deciding Set Win %	56% (155/279)
85% (415/352)	1st Set Won, Won Match	84% (483/404)
15% (415/63)	1st Set Won, Lost Match	15% (483/74)
18% (329/60)	1st Set Lost, Won Match	24% (364/88)