Jacob Brumm vs Zhengqing Ji Head-to-Head Stats, Results & Performance Comparison

Wojtek Kolan

Our Predictions

H2H Records Career Stats

HEAD TO HEAD
J. Brumm vs Z. Ji

Jacob Brumm

USA

1

Win

Played

0

Win

Age

Height

687

C. Rank

607

Best Rank

Total Titles

YTD Titles

Career Money

Plays

Zhengqing Ji

CHN

1

Win

Played

0

Win

Age

Height

687

C. Rank

607

Best Rank

Total Titles

YTD Titles

Career Money

Plays

Head-to-head: Brumm 1 - 0 Ji

They have played 2 sets in total, with Jacob Brumm winning 2 and Zhengqing Ji winning 0. The last match between Jacob Brumm and Zhengqing Ji was at the M15 San Diego, 05-06-2024, Round: R1, Surface: Hard, with Jacob Brumm getting the victory 6-3 6-1.

Players	Head To Head Match Wins
Brumm	1
Ji	0

Last 1 H2H Matches:

(R1) M15 San Diego(06-05-24)

Stats

Jacob Brumm

Zhengqing Ji

J. Brumm vs Z. Ji H2H Profile

J. Brumm	Stats	Z. Ji
$0	Career Prize Money	$0
51.15% (156-149)	Career Total W/L	40.00% (8-12)
1	Hard	0
1	Titles	0
1	Total H2H Matches	0
0% (0-0)	YTD Win/Loss	0% (0-0)

J. Brumm vs Z. Ji Match Preview:

Second serve performance recent form: In recent form (last 6 months), Jacob Brumm has won 43.23% of points on their second serve, while Zhengqing Ji has won 0%. There is a high correlation between this stat and match prediction accuracy.
Return game stats recent form: Return stats show Jacob Brumm, in recent form, has won 42.02% of their opponent's second serve points, while Zhengqing Ji has won 0%. The same stats for first serve returns are 26.56% and 0% respectively and this has a high correlation to pick who is favored in this H2H matchup.
Under pressure analysis: Jacob Brumm has saved 54.95% of breakpoints in recent form, whereas Zhengqing Ji has saved 0% which is a useful statistic for in-game betting predictions.
Performance overview: Over the last year Jacob Brumm has won 47.46% of matches played (W/L 28/31), with Zhengqing Ji winning 0% (W/L 0/0) that gives us an overall head-to head prediction overview.
Best surface: Jacob Brumm has their best career surface win % on Hard, winning 53% (W/L 127/114), and worse career win % on I.hard, winning 28% (W/L 5/13). Zhengqing Ji has their best career surface win % on Hard, winning 53% (W/L 7/10), and worse career win % on Clay, winning 33% (W/L 1/2).
Player level: In the last year, Jacob Brumm has played most of their matches on the Futures/Satellites/ITF tournaments $10K, winning 46.81% of matches (W/L 22/25), where as Zhengqing Ji 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 1 times before with Jacob Brumm winning 1 times and Zhengqing Ji being victorious 0 times. They have played 2 sets in total, with Jacob Brumm winning 2 and Zhengqing Ji winning 0.
The last match between Jacob Brumm and Zhengqing Ji was at the M15 San Diego, 05-06-2024, Round: R1, Surface: Hard, with Jacob Brumm getting the victory 6-3 6-1.
Head to head match duration: In past head to head matches, the average match time between these players has been 1:49:0.
Opponent quality stats: Over the last 12 months, Jacob Brumm has played against opponents with an average rank of 297.54 while Zhengqing Ji 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, Jacob Brumm has won 53% of deciding sets over the last 12 months, while Zhengqing Ji has won 0% in all matches played on tour.
Break point conversion: In recent form, Jacob Brumm has converted 36.36% of breakpoint opportunities, and Zhengqing Ji 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.

Jacob Brumm vs Zhengqing Ji Editorial Preview By TennisTipster88.

J. Brumm vs Z. Ji H2H Stats Used In Our Predictions

J. Brumm	Stats	Z. Ji
1	H2H Matches Won	0
2	Sets Won	0
12	Games Won	4
3	Aces (Total)	5
5	Total Double Faults	1
1:49:0	Average Match Time	1:49:0
58% (35/60)	1st Serve %	53% (34/64)
66% (23/35)	1st Serve Win %	53% (18/34)
52% (13/25)	2nd Serve Win %	40% (12/30)
45% (5/11)	Break Pts Won %	25% (1/4)
53% (34/64)	Return Points Win %	40% (24/60)
100% (1/1)	Best‑of‑3 Win %	0% (0/1)
100% (1/1)	1st Set Won, Won Match	0% (0/0)
0% (0/1)	1st Set Won, Lost Match	0% (0/0)
0% (0/0)	1st Set Lost, Won Match	0% (0/1)

Recent Performance Stats

J. Brumm Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
Champaign Challenger - 10-11-2025
Q3 Ryan FishbackR. Fishback	L	6-2 3-0 ret.	Stats
Q1 Drew Van OrderlainD. Van	W	7-6(0) 6-4	Stats
Sioux Falls Challenger - 20-10-2025
Q1 Andrew FentyA. Fenty	L	6-3 6-4	Stats
Fairfield Challenger - 06-10-2025
Q3 Edward WinterE. Winter	L	6-4 6-0	Stats
Q1 Unknown PlayerU. Player	W	3-6 6-3 6-4	Stats

View All

Z. Ji Recent Matches Played

OPPONENT	RESULT	SCORE	H2H
M15 San Diego - 10-06-2024
R1 Patrick MaloneyP. Maloney	L	7-5 6-3	Stats
Q3 Avery TallaksonA. Tallakson	W	7-6(1) 6-3	Stats
Q1 Jaden WilliamsJ. Williams	W	6-1 6-1	Stats
M15 San Diego - 03-06-2024
R1 Jacob BrummJ. Brumm	L	6-3 6-1	Stats
M25 La Nucia - 27-05-2024
Q1 Arystanbek KaparovA. Kaparov	L	w/o	Stats

View All

J. Brumm vs Z. Ji Stats Breakdown Vs All H2H Opponents

J. Brumm	Stats	Z. Ji
51.15% (156/149)	YTD Win/Loss	40.00% (8/12)
51.76% (353/329)	Sets Win/Loss	43.18% (19/25)
51.42% (3196/3020)	Games Win/Loss	49.34% (223/229)
52.70% (127/114)	Hard Win/Loss	41.18% (7/10)
52.17% (24/22)	Clay Win/Loss	33.33% (1/2)
27.78% (5/13)	Indoor Hard W/L	0% (0/0)
0.16	Aces Per Game	0.1
487	Aces Total	23
0.2	Double Faults Per Game	0.1
610	Total Double Faults	22
1:15:36	Average Match Time	1st Match
337.77	Average Opponent Rank	317.5
59% (7721/13125)	1st Serve %	61% (293/483)
65% (5049/7721)	1st Serve Win %	66% (193/293)
48% (2619/5404)	2nd Serve Win %	49% (94/190)
43% (567/1309)	Break Points Won % (Total)	45% (9/20)
40% (5278/13148)	Return Points Win %	34% (139/411)
33.33% (10/20)	Challenger W/L	0% (0/0)
53.09% (146/129)	Futures W/L	40.00% (8/12)
52% (155/298)	Best of 3 Sets Win %	40% (8/20)
0% (0/4)	Best of 5 Sets Win %	0% (0/0)
64% (35/55)	Tiebreaks Win % (Total)	25% (2/8)
46% (33/71)	Deciding Set Win %	25% (1/4)
86% (160/138)	1st Set Won, Won Match	78% (9/7)
14% (160/22)	1st Set Won, Lost Match	22% (9/2)
12% (145/18)	1st Set Lost, Won Match	9% (11/1)