John Sperle and Liam Gavrielides will fight against each other in the qualifications of the Koblenz Challenger for the 1st time in their career. They are scheduled to compete on Monday at 12:30 pm on CENTRE COURT. In the following paragraphs, you can find the head to head analysis and prediction.
Prediction, odds and live streaming
The pick for Tennis Tonic is John Sperle who should win in 3 sets.
As per the initial odds, John Sperle is the pick to win this match.
John Sperle -> 1.533
Liam Gavrielides -> 2.3
Here where top tennis events are broadcasted or streamed online (ATP, WTA).
At the challenger level, there will be free live streaming on Challenger TV.
Prediction and head to head John Sperle vs. Liam Gavrielides
There is no head to head record between John Sperle and Liam Gavrielides since this will be the first time that they will play each other in the main tour.
John Sperle
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 35-22 | 0-0 | 34-21 | 1-1 | 0-0 | 0-0 |
| 2025 | 31-28 | 0-0 | 31-28 | 0-0 | 0-0 | 0-0 |
| 2024 | 39-26 | 6-8 | 33-18 | 0-0 | 0-0 | 0-0 |
| 2023 | 42-26 | 10-7 | 32-18 | 0-1 | 0-0 | 0-0 |
| 2022 | 27-21 | 1-2 | 24-16 | 2-2 | 0-0 | 0-1 |
Ranked no. 768, Sperle reached the qualifications after defeating Adrian Oetzbach 7-6(4) 6-3.
In the qualifications, John had a good straight sets win against Oetzbach (7-64 6-3). During the match, Sperle scored 82 points vs Oetzbach’s 68. Sperle was quite aggressive to blast 34 winners.
Regarding the service games, Sperle fired 4 aces and he committed only 2 double faults. John Sperle lost the serve twice and he saved 5 break points. Furthermore, Sperle put 66% of his first serves in, winning 74% (34/46) of the points behind his 1st serve and 42% (10/24) on the 2nd serve. Sperle broke Oetzbach 4 times after converting 67% of his break points (4/6).
Sperle has a winning record in the last 6 years having won 58% of his matches (164-120). 1-0 on indoor hard courts in 2026. Regarding his performance on the same surface of this tournament, Sperle has an overall3-3 record in the last 6 years on indoor hard courts.
Sperle has a composed 5-1 win-loss record in 2026, 1-0 on indoor hard courts (See FULL STATS).
Previously in the Koblenz Challenger
John has never competed in this tournament before.
Liam Gavrielides
4 - 3win/loss
826
550
LWLWLLWWWL | Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2026 | 19-14 | 3-3 | 12-8 | 3-2 | 0-0 | 1-1 |
| 2025 | 4-4 | 0-0 | 4-3 | 0-1 | 0-0 | 0-0 |
| 2024 | 34-29 | 6-6 | 26-17 | 2-5 | 0-1 | 0-0 |
| 2023 | 35-27 | 6-3 | 29-21 | 0-2 | 0-0 | 0-1 |
| 2022 | 7-13 | 0-0 | 5-9 | 2-3 | 0-0 | 0-1 |
Ranked no. 826, Liam got to the qualifications after beating Kenny de Schepper 2-6 6-4 6-4.
In the qualifications against de Schepper, The German recovered from a 1-set down deficit before winning (2-6 6-4 6-4). During the match Gavrielides scored 85 points vs de Schepper’s 79. Liam was very aggressive to blast 31 winners.
Talking about serving, Gavrielides managed to score 7 aces and he committed only 3 double faults. Liam Gavrielides lost the serve twice and he saved 3 break points. Furthermore, Gavrielides put 60% of his first serves in, winning 67% (31/46) of the points behind his 1st serve and 74% (23/31) on the 2nd serve. The German broke de Schepper twice after converting 33% of his break points (2/6).
The German has a compiled 4-3 win-loss record in 2026, 1-0 on indoor hard courts (See FULL STATS).
H2H Performance in the tournament
Matches, sets, games and points
| Points | Sperle | Gavrielides |
|---|---|---|
| Match played | 1 | 1 |
| Tot Set | 2 | 3 |
| Tot Games | 22 | 28 |
| Pts | 82-68 | 85-79 |
| Total Points | 150 | 164 |
| Winners | 34 | 31 |
| %Winners | 41% | 36% |
Both Sperle and Gavrielides played 1 match. Also both players started their run from the qualifications.At the moment, Liam Gavrielides conceded 1 set while John Sperle hasn’t dropped a set so far. Sperle has played 1 set(s) less than Gavrielides (2 vs 3). Therefore, Sperle played 6 games less than Gavrielides. The German scored 34 winners (41% of the total points). On the other side, Gavrielides struck 31 winners (36%).
Serve Performance
| Serve | Sperle | Gavrielides |
|---|---|---|
| Aces | 4 | 7 |
| Avg per match | 4 | 7 |
| 1st in | 46/70 | 46/77 |
| %1st in | 66% | 60% |
| 1st pts | 34/46 | 31/46 |
| %1st pts | 74% | 67% |
| 2nd pts | 10/24 | 23/31 |
| %2nd pts | 42% | 74% |
Sperle made 4 aces . Gavrielides blasted 7 aces . Sperle won 74% points on his first serve. He quite strong on his second serve to win 42% of the points. On the other side, Gavrielides won 67% of the points behind his first serve. He had a solid display on his second serve to win 74% of the points.
How they played the important points
| Breaks | Sperle | Gavrielides |
|---|---|---|
| Won | 4 | 2 |
| Converted | 4/6 | 2/6 |
| % Converted | 67% | 33% |
| Conceded | 7 | 5 |
| Saved | 5 | 3 |
| % Saved | 71% | 60% |
| Times Broken | 2 | 2 |
Sperle broke his opponent 4 times with a 67% conversion rate. The German conceded his serve twice and he saved 71% of the break points that he conceded. The German broke his opponent twice with a 33% conversion rate. Gavrielides conceded his serve twice and he saved 60% of the break points that he conceded.
| Sperle | |||
| Q1 Oetzbach |
Total | ||
|---|---|---|---|
| Score | 7-64 6-3 | ||
| Tot Set | 2 | 2 | |
| Tot Games | 22 | 22 | |
| pts | 82-68 | 82-68 | |
| Total points | 150 | 150 | |
| Winners | 34 | 34 | |
| %Winners | 41% | 41% | |
| SERVE | |||
| Aces | 4 | 4 | |
| Double Faults | 2 | 2 | |
| 1st in | 46/70 | 46/70 | |
| % 1st in | 66% | 66% | |
| 1st pts | 34/46 | 34/46 | |
| % 1st pts | 74% | 74% | |
| 2nd pts | 10/24 | 10/24 | |
| % 2nd pts | 42% | 42% | |
| Breaks | |||
| Won | 4 | 4 | |
| Converted | 4/6 | 4/6 | |
| Converted % | 67% | 67% | |
| Conceded | 7 | 7 | |
| Saved | 5/7 | 5 | |
| Saved % | 71% | 71% | |
| Times Broken | 2 | 2 | |
| Gavrielides | |||
| Q1 de Schepper |
Total | ||
|---|---|---|---|
| Score | 2-6 6-4 6-4 | ||
| Tot Set | 3 | 3 | |
| Tot Games | 28 | 28 | |
| pts | 85-79 | 85-79 | |
| Total points | 164 | 164 | |
| Winners | 31 | 31 | |
| %Winners | 36% | 36% | |
| SERVE | |||
| Aces | 7 | 7 | |
| Double Faults | 3 | 3 | |
| 1st in | 46/77 | 46/77 | |
| % 1st in | 60% | 60% | |
| 1st pts | 31/46 | 31/46 | |
| % 1st pts | 67% | 67% | |
| 2nd pts | 23/31 | 23/31 | |
| % 2nd pts | 74% | 74% | |
| Breaks | |||
| Won | 2 | 2 | |
| Converted | 2/6 | 2/6 | |
| Converted % | 33% | 33% | |
| Conceded | 5 | 5 | |
| Saved | 3/5 | 3 | |
| Saved % | 60% | 60% | |
| Times Broken | 2 | 2 | |
Head 2 Head
WWWWWWWWWW
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