Nikolas Sanchez-Izquierdo and Zdenek Kolar will fight against each other in the quarter of the Sofia 1 Challenger for the 1st time in their career. They are scheduled to compete on Thursday at 11:00 am on COURT 3. Here the head to head stats and relative prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is Nikolas Sanchez-Izquierdo who should win in 3 sets.
Nikolas Sanchez-Izquierdo -> 1.7
Zdenek Kolar -> 2.06
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Prediction and head to head Nikolas Sanchez-Izquierdo vs. Zdenek Kolar
There is no head to head record between Nikolas Sanchez-Izquierdo and Zdenek Kolar since this will be the first time that they will face off in the main tour.
Nikolas Sanchez-Izquierdo
35 - 21win/loss
303
238
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 42-30 | 0-3 | 42-27 | 0-0 | 0-0 | 0-0 |
| 2024 | 32-36 | 2-2 | 30-33 | 0-1 | 0-0 | 0-0 |
| 2023 | 45-31 | 4-5 | 41-23 | 0-3 | 0-0 | 0-0 |
| 2022 | 33-29 | 5-0 | 26-25 | 2-4 | 0-0 | 0-0 |
| 2021 | 40-32 | 0-2 | 39-28 | 1-2 | 0-0 | 0-0 |
Ranked no. 306, Nikolas got to the quarter after defeating Viktor Markov 6-4 6-0 and Marat Sharipov 6-3 6-2.
In the 2nd round, Nikolas had a good straight sets win against Sharipov (6-3 6-2). During the match, Sanchez-Izquierdo scored 66 points vs Sharipov’s 43. Nikolas was quite aggressive to blast 27 winners.
Regarding the service games, Sanchez-Izquierdo scored just 1 ace during the match and he committed only 1 double fault. Nikolas Sanchez-Izquierdo lost the serve twice and he saved 4 break points. Furthermore, Sanchez-Izquierdo put 82% of his first serves in, winning 64% (27/42) of the points behind his 1st serve and 56% (5/9) on the 2nd serve. Sanchez-Izquierdo broke Sharipov 6 times after converting 40% of his break points (6/15).
Overall Performance in this tournament
Nikolas hasn’t surrendered yet a set in this tournament to win 62% of the points he played.
Sanchez-Izquierdo has a winning win-loss record in the last 9 years having won 59% of his matches (326-230). 35-18 on clay in 2025. In connection with his performance on the same surface of this competition, Sanchez-Izquierdo has an overall307-200 record in the last 9 years on clay.
Nikolas’s best result of the year was getting to the final in M25 Tarragona,M25 Reus,the Porto Alegre Challenger,M25 Mataro and M25 Montauban.
Nikolas has a composed 35-21 win-loss record in 2025, 35-18 on clay (See FULL STATS).
Previously in the Sofia 1 Challenger
Sanchez-Izquierdo has never competed in this tournament before.
Zdenek Kolar
40 - 20win/loss
222
111
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 62-30 | 3-2 | 59-28 | 0-0 | 0-0 | 0-0 |
| 2024 | 28-23 | 1-2 | 11-12 | 16-9 | 0-0 | 0-0 |
| 2023 | 34-35 | 6-8 | 19-19 | 9-7 | 0-1 | 0-0 |
| 2022 | 23-36 | 1-6 | 17-24 | 3-3 | 2-2 | 0-1 |
| 2021 | 41-32 | 1-4 | 34-19 | 5-8 | 1-1 | 0-0 |
Ranked no. 382, the Czech reached the quarter after defeating Alexander Vasilev 6-2 6-3 and Stefan Adrian Andreescu 6-4 6-2.
In the 2nd round, Kolar had a good straight sets win against Adrian Andreescu (6-4 6-2). During the match Kolar scored 74 points vs Adrian Andreescu’s 58. Zdenek was exceptionally aggressive to blast 24 winners.
Talking about serving, Kolar scored just 1 ace during the entire match and he committed only 2 double faults. Zdenek Kolar lost the serve twice and he saved 4 break points. Furthermore, Kolar put 60% of his first serves in, winning 69% (24/35) of the points behind his 1st serve and 52% (12/23) on the 2nd serve. The Czech broke Adrian Andreescu 5 times after converting 36% of his break points (5/14).
Overall Performance in this tournament
The Czech hasn’t dropped yet a set in the tournament to win 58% of the points he played.
Kolar’s best result of the current season was reaching the final in M25 Antalya and M15 Grodzisk Mazowiecki.
Zdenek has an overall 40-20 win-loss record in 2025, 37-18 on clay (See FULL STATS).
H2H Performance in the tournament (main draw)
Matches, sets, games and points
| Points | Sanchez-Izquierdo | Kolar |
|---|---|---|
| Match played | 2 | 2 |
| Tot Set | 4 | 4 |
| Tot Games | 33 | 35 |
| Pts | 126-77 | 141-101 |
| Total Points | 203 | 242 |
| Winners | 46 | 49 |
| %Winners | 37% | 35% |
Both Sanchez-Izquierdo and Kolar played 2 matches. Both players have not surrendered a single set in this event so far. Talking about their workload, Sanchez-Izquierdo and Kolar have played the same amount of sets 4. However, Sanchez-Izquierdo played 2 games less than Kolar. Sanchez-Izquierdo scored 46 winners (37% of the total points). On the other side, The Czech scored 49 winners (35%).
Serve Performance
| Serve | Sanchez-Izquierdo | Kolar |
|---|---|---|
| Aces | 2 | 2 |
| Avg per match | 1 | 1 |
| 1st in | 68/93 | 66/101 |
| %1st in | 73% | 65% |
| 1st pts | 46/68 | 49/66 |
| %1st pts | 68% | 74% |
| 2nd pts | 20/25 | 19/35 |
| %2nd pts | 80% | 54% |
Sanchez-Izquierdo recorded 2 aces (1 per match). Kolar made 2 aces (1 per match). Sanchez-Izquierdo won 68% points on his first serve. He was rock solid on his second serve to win 80% of the points. On the other side, Kolar won 74% of the points behind his first serve. He had a solid display on his second serve to win 54% of the points.
How they played the important points
| Breaks | Sanchez-Izquierdo | Kolar |
|---|---|---|
| Won | 10 | 10 |
| Converted | 10/22 | 10/25 |
| % Converted | 45% | 40% |
| Conceded | 7 | 9 |
| Saved | 5 | 6 |
| % Saved | 71% | 67% |
| Times Broken | 2 | 3 |
Sanchez-Izquierdo broke his opponents 10 times with a 45% conversion rate. Nikolas conceded his serve twice and he saved 71% of the break points that he conceded. Zdenek broke his opponents 10 times with a 40% conversion rate. Kolar conceded his serve 3 times and he saved 67% of the break points that he conceded.
| Sanchez-Izquierdo | ||||
| R1 Markov | R2 Sharipov | Total | ||
|---|---|---|---|---|
| Score | 6-4 6-0 | 6-3 6-2 | ||
| Tot Set | 2 | 2 | 4 | |
| Tot Games | 16 | 17 | 33 | |
| pts | 60-34 | 66-43 | 126-77 | |
| Total points | 94 | 109 | 203 | |
| Winners | 19 | 27 | 46 | |
| %Winners | 32% | 41% | 37% | |
| SERVE | ||||
| Aces | 1 | 1 | 2 | |
| Double Faults | 1 | 1 | 2 | |
| 1st in | 26/42 | 42/51 | 68/93 | |
| % 1st in | 62% | 82% | 73% | |
| 1st pts | 19/26 | 27/42 | 46/68 | |
| % 1st pts | 73% | 64% | 68% | |
| 2nd pts | 15/16 | 5/9 | 20/25 | |
| % 2nd pts | 94% | 56% | 80% | |
| Breaks | ||||
| Won | 4 | 6 | 10 | |
| Converted | 4/7 | 6/15 | 10/22 | |
| Converted % | 57% | 40% | 45% | |
| Conceded | 1 | 6 | 7 | |
| Saved | 1/1 | 4/6 | 5 | |
| Saved % | 100% | 67% | 84% | |
| Times Broken | 0 | 2 | 2 | |
| Kolar | ||||
| R1 Vasilev | R2 Adrian | Total | ||
|---|---|---|---|---|
| Score | 6-2 6-3 | 6-4 6-2 | ||
| Tot Set | 2 | 2 | 4 | |
| Tot Games | 17 | 18 | 35 | |
| pts | 67-43 | 74-58 | 141-101 | |
| Total points | 110 | 132 | 242 | |
| Winners | 25 | 24 | 49 | |
| %Winners | 37% | 32% | 35% | |
| SERVE | ||||
| Aces | 1 | 1 | 2 | |
| Double Faults | 2 | 2 | 4 | |
| 1st in | 31/43 | 35/58 | 66/101 | |
| % 1st in | 72% | 60% | 65% | |
| 1st pts | 25/31 | 24/35 | 49/66 | |
| % 1st pts | 81% | 69% | 74% | |
| 2nd pts | 7/12 | 12/23 | 19/35 | |
| % 2nd pts | 58% | 52% | 54% | |
| Breaks | ||||
| Won | 5 | 5 | 10 | |
| Converted | 5/11 | 5/14 | 10/25 | |
| Converted % | 45% | 36% | 40% | |
| Conceded | 3 | 6 | 9 | |
| Saved | 2/3 | 4/6 | 6 | |
| Saved % | 67% | 67% | 67% | |
| Times Broken | 1 | 2 | 3 | |
Upcoming matches in the draw
- Nerman FaticFatic – Sebastian GimaGima (1-0) – H2H and prediction
- Murkel Alejandro Dellien VelascoAlejandro Dellien Velasco – Sandro KoppKopp (0-0) – H2H and prediction
- Zdenek KolarKolar – Nikolas Sanchez-IzquierdoSanchez-Izquierdo (0-0) – H2H and prediction