Alvaro Guillen Meza and Zdenek Kolar will fight against each other in the 1st round of the Santos Challenger for the 1st time in their career. They are scheduled to compete on Monday at 2:00 pm on QUADRA 1. 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 Alvaro Guillen Meza who should win in 3 sets.
Alvaro Guillen Meza -> 1.66
Zdenek Kolar -> 2.12
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Prediction and head to head Alvaro Guillen Meza vs. Zdenek Kolar
There is no head to head record between Alvaro Guillen Meza and Zdenek Kolar since this will be the first time that they will clash against each other in the main tour.
Alvaro Guillen Meza
16 - 11win/loss
190
175
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 46-29 | 0-1 | 46-27 | 0-0 | 0-1 | 0-0 |
| 2024 | 37-32 | 1-3 | 36-29 | 0-0 | 0-0 | 0-0 |
| 2023 | 51-22 | 0-1 | 51-20 | 0-1 | 0-0 | 0-0 |
| 2022 | 33-23 | 1-2 | 32-21 | 0-0 | 0-0 | 0-0 |
| 2021 | 5-9 | 0-0 | 5-9 | 0-0 | 0-0 | 0-0 |
Ranked no. 205 (career-high), Alvaro will start his run in the Santos Challenger after he played his last match in the Porto Alegre Challenger where he lost 6-1 3-6 6-0 to Pucinelli De Almeida in the 1st round on the 29th of April.
The Ecuadorian has a compiled 16-11 win-loss record in 2025, 16-10 on clay (See FULL STATS).
Guillen Meza’s best result of the current year was reaching the final in M25 Punta del Este and the Campinas Challenger.
Talking about his overall career, The Ecuadorian has an overall 148-105 record. He has a positive 144-95 record on clay.
Previously in the Santos Challenger
Previously, his best result was reaching the 2nd
round in 2024. See his history.Zdenek Kolar
21 - 10win/loss
175
111
| Year | Total | Hard | Clay | I.hard | Grass | Carpet |
|---|---|---|---|---|---|---|
| 2025 | 66-30 | 3-2 | 63-28 | 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. 430, the Czech will start his run in the Santos Challenger after he played his last match in the Porto Alegre Challenger where he lost 6-4 7-5 to Rodriguez Taverna in the 1st round on the 29th
of April.Zdenek has an aggregate 21-10 win-loss record in 2025, 18-8 on clay (See FULL STATS).
Zdenek’s best result of the year was getting to the final in M25 Antalya.
In terms of his career, Kolar has an overall 352-284 record. He has a positive 240-170 record on clay.
Previously in the Santos Challenger
Zdenek has never competed in this tournament before.
Upcoming matches in the draw
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- Nicolas KickerKicker – (1-0) – H2H and prediction
- Gianluca MagerMager – Juan Pablo VarillasPablo Varillas (1-1) – H2H and prediction
- Gonzalo VillanuevaVillanueva – Mateus De Carvalho CardosoDe Carvalho Cardoso (1-1) – H2H and prediction
- Genaro Alberto OlivieriAlberto Olivieri – Joao Lucas Reis Da SilvaLucas Reis Da Silva (1-1) – H2H and prediction
- Santiago Fa Rodriguez TavernaFa Rodriguez Taverna – Hernan CasanovaCasanova (5-4) – H2H and prediction
- Eduardo RibeiroRibeiro – Matheus Pucinelle De AlmeidaPucinelle De Almeida (0-0) – H2H and prediction
- Nicolas Alvarez VaronaAlvarez Varona – (0-0) – H2H and prediction
- Matias SotoSoto – Pedro SakamotoSakamoto (0-0) – H2H and prediction
- Alvaro Guillen MezaGuillen Meza – Zdenek KolarKolar (0-0) – H2H and prediction