Adolfo Daniel Vallejo and Joao Eduardo Schiessl will play each other in the semifinal of the Curitiba Challenger for the 1^st time in their career. They are scheduled to compete on Saturday at 11:00 am on QUADRA CENTRAL. In the following lines you can find the head to head analysis and prediction.

Prediction, odds and live streaming

The pick for Tennis Tonic is Adolfo Daniel Vallejo who should win in 2 sets.

As per the initial odds, Adolfo Daniel Vallejo is the pick to win this match.
Adolfo Daniel Vallejo -> 1.28
Joao Eduardo Schiessl -> 3.44

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Prediction and head to head Adolfo Daniel Vallejo vs. Joao Eduardo Schiessl

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

Adolfo Daniel Vallejo

Ranked no. 253, Daniel Vallejo got to the semifinal after defeating Emilio Nava 6-2 6-3, Matias Soto 6-3 6-2 and Tomas Barrios Vera 6-3 6-7(2) 6-3.

In the quarter, Adolfo defeated Tomas Barrios Vera (6-3 6-7² 6-3). During the match, Daniel Vallejo scored 108 points vs Tomas Barrios Vera’s 97. Adolfo was exceptionally aggressive to blast 49 winners.

Regarding the service games, Daniel Vallejo recorded 4 aces and he committed only 1 double fault. Overall, Adolfo Daniel Vallejo was extremely efficient on serve to win 73% (49/67) of his 1st serve and 59% (19/32) on the second serve. However, this didn’t prevent his to concede the serve once. Adolfo broke Tomas Barrios Vera 3 times after converting 30% of his break points (3/10).

Overall Performance in this tournament

Adolfo has dropped 1 set in this competition to win 56% of the points he played.

Daniel Vallejo has a winning record in the last 6 years having won 57% of his matches (126-96). 36-21 on clay in 2025. Regarding his performance on the same surface of this competition, Daniel Vallejo has a composed93-69 win-loss record in the last 6 years on clay.

Adolfo’s best result of the current season was getting to the final in the Buenos Aires Challenger,M25 Punta del Este,M25 Mar Del Plata and M25 Londrina.

The Paraguayan has a composed 37-25 win-loss record in 2025, 36-21 on clay (See FULL STATS).

Previously in the Curitiba Challenger

Joao Eduardo Schiessl

Ranked no. 564, the Brazilian got to the semifinal after beating Alex Barrena 6-3 6-4, Juan Alejandro Hernandez 6-3 5-7 6-4 and Daniel Dutra Da Silva 6-2 6-3.

In the quarter, Joao had a good straight sets win against Dutra Da Silva (6-2 6-3). During the match Eduardo Schiessl scored 63 points vs Dutra Da Silva’s 43. Joao was pretty aggressive to blast 28 winners.

About the serving games, Eduardo Schiessl made 4 aces and he committed only 1 double fault for the entire match. Joao Eduardo Schiessl conceded no breaks for the entire match to save 2 break points. Furthermore, Eduardo Schiessl put 63% of his first serves in, winning 90% (28/31) of the points behind his 1st serve and 44% (8/18) on the 2nd serve. Joao broke Dutra Da Silva 4 times after converting 57% of his break points (4/7).

Overall Performance in this tournament

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

Joao’s best result of the current season was getting to the final in M15 Cluj Napoca.

The Brazilian has an overall 32-16 win-loss record in 2025, 25-11 on clay (See FULL STATS).

Previously in the Curitiba Challenger

Previously, his best result was reaching the qualifications in 2023 and 2024. See his history.

H2H Performance in the tournament (main draw)

Matches, sets, games and points

Points	Daniel Vallejo	Eduardo Schiessl
Match played	3	3
Tot Set	7	7
Tot Games	65	67
Pts	231-185	224-185
Total Points	416	409
Winners	100	108
%Winners	43%	48%

Both Daniel Vallejo and Eduardo Schiessl played 3 matches. Both players lost a set in the event. Adolfo Daniel Vallejo lost 1 set, while Joao Eduardo Schiessl conceded 1 set. Talking about their workload, Daniel Vallejo and Eduardo Schiessl have played the same amount of sets 7. However, Daniel Vallejo played 2 games less than Eduardo Schiessl. Daniel Vallejo scored 100 winners (43% of the total points). On the other side, Eduardo Schiessl struck 108 winners (48%).

Serve Performance

Serve	Daniel Vallejo	Eduardo Schiessl
Aces	10	12
Avg per match	3.3	4
1st in	131/196	133/210
%1st in	67%	63%
1st pts	100/131	108/133
%1st pts	76%	81%
2nd pts	38/65	35/77
%2nd pts	58%	45%

Daniel Vallejo bagged 10 aces (3.3 per match). Eduardo Schiessl blasted 12 aces (4 per match). Daniel Vallejo won 76% points on his first serve. He had a solid display on his second serve to win 58% of the points. On the other side, Eduardo Schiessl won 81% of the points behind his first serve. He had a solid display on his second serve to win 45% of the points.

How they played the important points

Breaks	Daniel Vallejo	Eduardo Schiessl
Won	10	11
Converted	10/23	11/23
% Converted	43%	48%
Conceded	9	15
Saved	8	11
% Saved	89%	73%
Times Broken	1	4

The Paraguayan broke his opponents 10 times with a 43% conversion rate. Adolfo lost his serve once and he saved 89% of the break points that he conceded. Joao broke his opponents 11 times with a 48% conversion rate. Eduardo Schiessl conceded his serve 4 times and he saved 73% of the break points that he conceded.

Daniel Vallejo
	R1 Nava	R2 Soto	1/4 Tomas Barrios Vera	Total
Score	6-2 6-3	6-3 6-2	6-3 6-72 6-3
Tot Set	2	2	3	7
Tot Games	17	17	31	65
pts	63-45	60-43	108-97	231-185
Total points	108	103	205	416
Winners	24	27	49	100
%Winners	38%	45%	45%	43%
SERVE
Aces	2	4	4	10
Double Faults	1	1	1	3
1st in	30/47	34/50	67/99	131/196
% 1st in	64%	68%	68%	67%
1st pts	24/30	27/34	49/67	100/131
% 1st pts	80%	79%	73%	76%
2nd pts	9/17	10/16	19/32	38/65
% 2nd pts	53%	63%	59%	58%
Breaks
Won	4	3	3	10
Converted	4/8	3/5	3/10	10/23
Converted %	50%	60%	30%	43%
Conceded	0	2	7	9
Saved	0/0	2/2	6/7	8
Saved %	–	100%	86%	62%
Times Broken	0	0	1	1

Eduardo Schiessl
	R1 Barrena	R2 Alejandro Hernandez	1/4 Dutra Da Silva	Total
Score	6-3 6-4	6-3 5-7 6-4	6-2 6-3
Tot Set	2	3	2	7
Tot Games	19	31	17	67
pts	69-60	92-82	63-43	224-185
Total points	129	174	106	409
Winners	33	47	28	108
%Winners	48%	51%	44%	48%
SERVE
Aces	1	7	4	12
Double Faults	1	1	1	3
1st in	40/69	62/92	31/49	133/210
% 1st in	58%	67%	63%	63%
1st pts	33/40	47/62	28/31	108/133
% 1st pts	83%	76%	90%	81%
2nd pts	12/29	15/30	8/18	35/77
% 2nd pts	41%	50%	44%	45%
Breaks
Won	3	4	4	11
Converted	3/10	4/6	4/7	11/23
Converted %	30%	67%	57%	48%
Conceded	6	7	2	15
Saved	5/6	4/7	2/2	11
Saved %	83%	57%	100%	80%
Times Broken	1	3	0	4

Tennis Scores in Curitiba Challenger

• Joao Eduardo SchiesslEduardo Schiessl – Daniel Dutra Da SilvaDutra Da Silva (6-2 6-3) – See score progression
• Adolfo Daniel VallejoDaniel Vallejo – Tomas Barrios VeraBarrios Vera (6-3 6-7² 6-3) – See score progression
• Roman Andres BurruchagaAndres Burruchaga – Gonzalo BuenoBueno (6-1 6-1) – See score progression
• Pedro Boscardin DiasBoscardin Dias – Juan Carlos Prado AngeloCarlos Prado Angelo (6-4 6-4) – See score progression
• Joao Eduardo SchiesslEduardo Schiessl – Daniel Dutra Da SilvaDutra Da Silva (6-2 6-3) – See score progression
• Roman Andres BurruchagaAndres Burruchaga – Gonzalo BuenoBueno (6-1 6-1) – See score progression
• Pedro Boscardin DiasBoscardin Dias – Juan Carlos Prado AngeloCarlos Prado Angelo (6-4 6-4) – See score progression

Upcoming matches in the draw