
Yoshihito Nishioka and Christopher O Connell will square off in the semifinal of the Porto Challenger for the 1st time in their career. They are scheduled to compete on Saturday at 1:30 pm on COURT CARLSBERG. In this post, we analyze their head to head performance and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Christopher O Connell who should win in 3 sets.
As per the initial odds, Christopher O Connell is the pick to win this match.
Christopher O Connell -> 1.9
Yoshihito Nishioka -> 1.9
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Prediction and head to head Yoshihito Nishioka vs. Christopher O Connell
There is no head to head record between Yoshihito Nishioka and Christopher O Connell since this will be the first time that they will fight against each other in the main tour.
Yoshihito Nishioka
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 26-22 | 16-14 | 0-2 | 10-2 | 0-4 | 0-0 |
| 2024 | 29-24 | 17-15 | 6-7 | 1-0 | 5-2 | 0-0 |
| 2023 | 23-22 | 14-15 | 5-5 | 4-1 | 0-1 | 0-0 |
| 2022 | 44-25 | 25-13 | 2-5 | 17-6 | 0-1 | 0-0 |
| 2021 | 19-26 | 5-11 | 8-7 | 5-5 | 1-3 | 0-0 |
Ranked no. 101, Nishioka got to the semifinal after defeating Andrey Kuznetsov 7-65 7-5, Emilio Nava 7-62 6-3 and Hugo Grenier 2-6 6-2 4-0 ret..
In the quarter against Grenier, The Japanese recovered from a 1-set down deficit before winning (2-6 6-2 4-0 ret.). During the match, Nishioka scored 66 points vs Grenier’s 57. Nishioka was extremely aggressive to blast 33 winners.
Regarding the service games, Nishioka scored 2 aces and he committed only 2 double faults. Yoshihito Nishioka lost the serve twice and he saved 4 break points. Furthermore, Nishioka put 73% of his first serves in, winning 69% (33/48) of the points behind his 1st serve and 44% (8/18) on the 2nd serve. Nishioka broke Grenier 4 times after converting 50% of his break points (4/8).
Overall Performance in this tournament
The Japanese hasn’t dropped yet a set in this tournament to win 54% of the points he played.
Nishioka has a solid record in the last 10 years having won 62% of his matches (335-203). 14-7 on hard in 2022. Talking about his performance on the same surface of this event, Nishioka has a composed 190-109 match record in the last years on hard.
The Japanese’s best result of the current season was reaching the final in the Columbus Challenger and the Cleveland Challenger.
The Japanese has a composed 26-15 win-loss record in 2022, 14-7 on hard (See FULL STATS).
Previously in the Porto Challenger
The Japanese has never competed in this tournament before.
Christopher O Connell
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 23-28 | 19-15 | 3-7 | 0-0 | 1-6 | 0-0 |
| 2024 | 28-26 | 23-16 | 2-4 | 3-5 | 0-1 | 0-0 |
| 2023 | 38-34 | 19-18 | 11-9 | 4-3 | 4-4 | 0-0 |
| 2022 | 50-25 | 30-16 | 12-5 | 3-1 | 5-3 | 0-0 |
| 2021 | 22-16 | 14-9 | 3-3 | 1-1 | 4-3 | 0-0 |
Ranked no. 108 (career-high), the Australian reached the semifinal after beating Omar Jasika 6-2 6-4, Gregoire Barrere 6-3 6-1 and Kaichi Uchida 6-4 6-2.
In the quarter, The Australian had a good straight sets win against Uchida (6-4 6-2). During the match O scored 63 points vs Uchida’s 50. Christopher was very aggressive to blast 23 winners.
Talking about serving, O recorded 10 aces and he committed only 2 double faults. Christopher O Connell was pretty effective on serve to win 88% (23/26) of his 1st serve and 61% (17/28) on the second serve. This was the main reason for not conceding a single break during the match. O broke Uchida 3 times after converting 30% of his break points (3/10).
Overall Performance in this tournament
The Australian hasn’t dropped yet a set in the tournament to win 58% of the points he played.
O’s best result of the season was reaching the final in the Split Challenger.
The Australian has an overall 30-14 win-loss record in 2022, 13-6 on hard (See FULL STATS).
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Nishioka | O |
|---|---|---|
| Match played | 3 | 3 |
| Tot Set | 8 | 6 |
| Tot Games | 67 | 52 |
| Pts | 249-215 | 188-137 |
| Total Points | 464 | 325 |
| Winners | 103 | 74 |
| %Winners | 41% | 39% |
Both Nishioka and O played 3 matches. At the moment, Yoshihito Nishioka lost 1 set while Christopher O Connell hasn’t lost a set so far. Nishioka has played 2 sets more than O (8 vs 6). Therefore, Nishioka played 15 games more than O. Nishioka scored 103 winners (41% of the total points). On the other side, The Australian scored 74 winners (39%).
Serve Performance
| Serve | Nishioka | O |
|---|---|---|
| Aces | 7 | 30 |
| Avg per match | 2.3 | 10 |
| 1st in | 142/218 | 85/148 |
| %1st in | 65% | 57% |
| 1st pts | 103/142 | 74/85 |
| %1st pts | 73% | 87% |
| 2nd pts | 42/76 | 37/63 |
| %2nd pts | 55% | 59% |
Nishioka scored 7 aces (2.3 per match). O fired 30 aces (10 per match). Nishioka won 73% points on his first serve. He extremely effective on his second serve to win 55% of the points. On the other side, O won 87% of the points on his first serve. He had a solid display on his second serve to win 59% of the points.
How they played the important points
| Breaks | Nishioka | O |
|---|---|---|
| Won | 9 | 10 |
| Converted | 9/25 | 10/26 |
| % Converted | 36% | 38% |
| Conceded | 18 | 6 |
| Saved | 13 | 6 |
| % Saved | 72% | 100% |
| Times Broken | 5 | 0 |
Nishioka broke his opponents 9 times with a 36% conversion rate. The Japanese conceded his serve 5 times and he saved 72% of the break points that he conceded. The Australian broke his opponents 10 times with a 38% conversion rate. Christopher was rock solid on his serve as he has never conceded a single service game after saving 6 break points.
| Nishioka | |||||
| R1 Kuznetsov |
R2 Nava |
1/4 Grenier |
Total | ||
|---|---|---|---|---|---|
| Score | 7-65 7-5 | 7-62 6-3 | 2-6 6-2 4-0 ret. | ||
| Tot Set | 2 | 2 | 3 | 7 | |
| Tot Games | 25 | 22 | 20 | 67 | |
| pts | 99-92 | 84-66 | 66-57 | 249-215 | |
| Total points | 191 | 150 | 123 | 464 | |
| Winners | 38 | 32 | 33 | 103 | |
| %Winners | 38% | 38% | 50% | 41% | |
| SERVE | |||||
| Aces | 4 | 1 | 2 | 7 | |
| Double Faults | 2 | 2 | 2 | 6 | |
| 1st in | 56/92 | 38/60 | 48/66 | 142/218 | |
| % 1st in | 61% | 63% | 73% | 65% | |
| 1st pts | 38/56 | 32/38 | 33/48 | 103/142 | |
| % 1st pts | 68% | 84% | 69% | 73% | |
| 2nd pts | 20/36 | 14/22 | 8/18 | 42/76 | |
| % 2nd pts | 56% | 64% | 44% | 55% | |
| Breaks | |||||
| Won | 3 | 2 | 4 | 9 | |
| Converted | 3/8 | 2/9 | 4/8 | 9/25 | |
| Converted % | 38% | 22% | 50% | 36% | |
| Conceded | 11 | 1 | 6 | 18 | |
| Saved | 9/11 | 0/1 | 4/6 | 13 | |
| Saved % | 82% | 0% | 67% | 50% | |
| Times Broken | 2 | 1 | 2 | 5 | |
| O | |||||
| R1 Jasika |
R2 Barrere |
1/4 Uchida |
Total | ||
|---|---|---|---|---|---|
| Score | 6-2 6-4 | 6-3 6-1 | 6-4 6-2 | ||
| Tot Set | 2 | 2 | 2 | 6 | |
| Tot Games | 18 | 16 | 18 | 52 | |
| pts | 60-44 | 65-43 | 63-50 | 188-137 | |
| Total points | 104 | 108 | 113 | 325 | |
| Winners | 26 | 25 | 23 | 74 | |
| %Winners | 43% | 38% | 37% | 39% | |
| SERVE | |||||
| Aces | 12 | 8 | 10 | 30 | |
| Double Faults | 6 | 0 | 2 | 8 | |
| 1st in | 28/50 | 31/44 | 26/54 | 85/148 | |
| % 1st in | 56% | 70% | 48% | 57% | |
| 1st pts | 26/28 | 25/31 | 23/26 | 74/85 | |
| % 1st pts | 93% | 81% | 88% | 87% | |
| 2nd pts | 11/22 | 9/13 | 17/28 | 37/63 | |
| % 2nd pts | 50% | 69% | 61% | 59% | |
| Breaks | |||||
| Won | 3 | 4 | 3 | 10 | |
| Converted | 3/5 | 4/11 | 3/10 | 10/26 | |
| Converted % | 60% | 36% | 30% | 38% | |
| Conceded | 1 | 4 | 1 | 6 | |
| Saved | 1/1 | 4/4 | 1/1 | 6 | |
| Saved % | 100% | 100% | 100% | 100% | |
| Times Broken | 0 | 0 | 0 | 0 | |
Head 2 Head
WWWWWWLWWW
LLWLLWWLWW Tennis Scores in Porto Challenger
- Yoshihito NishiokaNishioka – Hugo GrenierGrenier (2-6 6-2 4-0 ret.) – See score progression
- James DuckworthDuckworth – Aidan MchughMchugh (7-63 6-0) – See score progression
- Christopher O ConnellO Connell – Kaichi UchidaUchida (6-4 6-2) – See score progression
- Altug CelikbilekCelikbilek – Egor GerasimovGerasimov (7-5 6-4) – See score progression
- Nuno Borges/Francisco CabralBorges/Francisco Cabral – Luca Margaroli/Yasutaka UchiyamaMargaroli/Yasutaka Uchiyama (6-2 6-1) – See score progression
Upcoming matches in the draw
- James DuckworthDuckworth – Altug CelikbilekCelikbilek (0-0) – H2H and prediction
- Christopher O ConnellO Connell – Yoshihito NishiokaNishioka (0-0) – H2H and prediction








