Jesper De Jong and Adolfo Daniel Vallejo will clash against each other in the semifinal of the Antofagasta Challenger for the 1^st time in their career. They are scheduled to compete on Saturday at 1:00 pm on CANCHA CENTRAL. In this post, we analyze their head to head performance and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Jesper De Jong who should win in 2 sets.

As per the initial odds, Jesper De Jong is the pick to win this match.
Jesper De Jong -> 1.22
Adolfo Daniel Vallejo -> 3.92

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Prediction and head to head Jesper De Jong vs. Adolfo Daniel Vallejo

There is no head to head record between Jesper De Jong and Adolfo Daniel Vallejo since this will be the first time that they will fight against each other in the main tour.

Jesper De Jong

Ranked no. 128, Jesper reached the semifinal after beating Enzo Couacaud 6-1 7-5, Karue Sell 6-3 6-3 and Murkel Alejandro Dellien Velasco 6-4 6-2.

In the quarter, De Jong had a good straight sets win against Alejandro Dellien Velasco (6-4 6-2). During the match, De Jong scored 78 points vs Alejandro Dellien Velasco’s 61. De Jong was pretty aggressive to blast 26 winners.

Talking about the service games, De Jong scored 3 aces and he committed only 6 double faults. Jesper De Jong lost the serve once and he saved 7 break points. Furthermore, De Jong put 62% of his first serves in, winning 72% (26/36) of the points behind his 1st serve and 50% (11/22) on the 2nd serve. Jesper broke Alejandro Dellien Velasco 4 times after converting 29% of his break points (4/14).

Overall Performance in this tournament

De Jong hasn’t surrendered yet a set in this competition to win 56% of the points he played.

De Jong has a solid record in the last 8 years having won 63% of his matches (245-142). 27-12 on clay in 2024. In connection with his performance on the same surface of this competition, De Jong has an overall139-75 win-loss record in the last 8 years on clay.

His best result of the current season was conquering the title the Sassuolo Challenger where he overcame Daniel Altmaier in the final 7-6(5) 6-1.

De Jong has a compiled 40-20 win-loss record in 2024, 27-12 on clay (See FULL STATS).

Previously in the Antofagasta Challenger

The Dutch has never competed in this tournament before.

Adolfo Daniel Vallejo

Ranked no. 286 (career-high), Daniel Vallejo reached the semifinal after beating Gonzalo Villanueva 6-2 6-4, Hugo Dellien 6-3 6-2 and Luciano Emanuel Ambrogi 6-4 2-6 6-1.

In the quarter, The Paraguayan defeated Emanuel Ambrogi (6-4 2-6 6-1). During the match Daniel Vallejo scored 92 points vs Emanuel Ambrogi’s 85. The Paraguayan was quite aggressive to blast 27 winners.

About the serving games, Daniel Vallejo wasn’t able to score even 1 ace for the entire match and he committed only 3 double faults. Adolfo Daniel Vallejo lost the serve 3 times and he saved 5 break points. Furthermore, Daniel Vallejo put 47% of his first serves in, winning 66% (27/41) of the points behind his 1st serve and 57% (27/47) on the 2nd serve. The Paraguayan broke Emanuel Ambrogi 5 times after converting 36% of his break points (5/14).

Overall Performance in this tournament

Daniel Vallejo has conceded 1 set in the tournament to win 55% of the points he played.

His best result of the year was winning the title the Sao Leopoldo Challenger where he overcame Enzo Couacaud in the final 6-3 6-2.

Adolfo has a compiled 29-20 win-loss record in 2024, 22-16 on clay (See FULL STATS).

Previously in the Antofagasta Challenger

Previously, his best result was reaching the 1^st round in 2023. See his history.

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	De Jong	Daniel Vallejo
Match played	3	3
Tot Set	6	7
Tot Games	55	60
Pts	210-164	225-183
Total Points	374	408
Winners	79	74
%Winners	38%	33%

Both De Jong and Daniel Vallejo played 3 matches. At the moment, Adolfo Daniel Vallejo lost 1 set while Jesper De Jong hasn’t dropped a set so far. De Jong has played 1 set(s) less than Daniel Vallejo (6 vs 7). Therefore, De Jong played 5 games less than Daniel Vallejo. De Jong scored 79 winners (38% of the total points). On the other side, Adolfo blasted 74 winners (33%).

Serve Performance

Serve	De Jong	Daniel Vallejo
Aces	13	2
Avg per match	4.3	0.7
1st in	105/181	107/193
%1st in	58%	55%
1st pts	79/105	74/107
%1st pts	75%	69%
2nd pts	43/76	54/86
%2nd pts	57%	63%

De Jong managed to score 13 aces (4.3 per match). Daniel Vallejo bagged 2 aces (0.7 per match). De Jong won 75% points behind his first serve. He had a solid display on his second serve to win 57% of the points. On the other side, Daniel Vallejo won 69% of the points behind his first serve. He had a solid display on his second serve to win 63% of the points.

How they played the important points

Breaks	De Jong	Daniel Vallejo
Won	11	13
Converted	11/27	13/32
% Converted	41%	41%
Conceded	16	12
Saved	14	8
% Saved	88%	67%
Times Broken	2	4

Jesper broke his opponents 11 times with a 41% conversion rate. Jesper dropped his serve twice and he saved 88% of the break points that he conceded. The Paraguayan broke his opponents 13 times with a 41% conversion rate. The Paraguayan conceded his serve 4 times and he saved 67% of the break points that he conceded.

De Jong
	R1 Couacaud	R2 Sell	1/4 Alejandro Dellien Velasco	Total
Score	6-1 7-5	6-3 6-3	6-4 6-2
Tot Set	2	2	2	6
Tot Games	19	18	18	55
pts	71-51	61-52	78-61	210-164
Total points	122	113	139	374
Winners	25	28	26	79
%Winners	35%	46%	33%	38%
SERVE
Aces	4	6	3	13
Double Faults	1	0	6	7
1st in	31/57	38/66	36/58	105/181
% 1st in	54%	58%	62%	58%
1st pts	25/31	28/38	26/36	79/105
% 1st pts	81%	74%	72%	75%
2nd pts	16/26	16/28	11/22	43/76
% 2nd pts	62%	57%	50%	57%
Breaks
Won	4	3	4	11
Converted	4/9	3/4	4/14	11/27
Converted %	44%	75%	29%	41%
Conceded	5	3	8	16
Saved	4/5	3/3	7/8	14
Saved %	80%	100%	88%	89%
Times Broken	1	0	1	2

Daniel Vallejo
	R1 Villanueva	R2 Dellien	1/4 Emanuel Ambrogi	Total
Score	6-2 6-4	6-3 6-2	6-4 2-6 6-1
Tot Set	2	2	3	7
Tot Games	18	17	25	60
pts	65-45	68-53	92-85	225-183
Total points	110	121	177	408
Winners	24	23	27	74
%Winners	37%	34%	29%	33%
SERVE
Aces	2	0	0	2
Double Faults	0	2	3	5
1st in	31/50	35/55	41/88	107/193
% 1st in	62%	64%	47%	55%
1st pts	24/31	23/35	27/41	74/107
% 1st pts	77%	66%	66%	69%
2nd pts	16/19	11/20	27/47	54/86
% 2nd pts	84%	55%	57%	63%
Breaks
Won	3	5	5	13
Converted	3/6	5/12	5/14	13/32
Converted %	50%	42%	36%	41%
Conceded	1	3	8	12
Saved	1/1	2/3	5/8	8
Saved %	100%	67%	63%	77%
Times Broken	0	1	3	4

Tennis Scores in Antofagasta Challenger

• Mateus Alves/Matias SotoAlves/Matias Soto – Enzo Couacaud/Jesper de JongCouacaud/Jesper de Jong (4-6 6-4 10-6) – Stats, scores, rankings

Upcoming matches in the draw

• Juan Manuel CerundoloManuel Cerundolo – Andrea CollariniCollarini (4-2) – H2H and prediction
• Jesper De JongDe Jong – (0-0) – H2H and prediction