ATP Challenger Tour · Round of 16 · Koblenz
Final score & match stats
Playing styles and historical archetype record
Kolar
🪃 Counterpuncher
Zhang
🤖 Servebot
Matchup analysis
The 🤖 Servebot archetype wins about 58% vs 🪃 Counterpuncher across 4,477 matches in our dataset. That is a small stylistic lean for Zhizhen Zhang here.
Servebot players often use high ace rate and dominant service to pressure the counterpuncher's elite bp conversion. On Hard, that can swing with conditions.
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kolar | Zhang |
|---|---|---|
| W-L | 9–10 | 7–8 |
| Avg odds | 1.64 | 2.04 |
| ROI % | -19.8% | -27.2% |
| Units P/L | -3.76u | -4.08u |
Prior meetings and scores · 2 career meetings
2
Kolar
0
Zhang
May 12, 2026
Oeiras Open 4
C Clay · Round of 32
Feb 1, 2023
Koblenz
H Hard · Round of 16
Results vs. opponents both players faced · Last 12 months
Across 3 shared opponents, both Kolar and Zhang posted a 33% win rate.
| Opponent | Kolar | Zhang |
|---|---|---|
| Jaime Faria | W 61 62 | W 64 75 |
| Facundo Diaz Acosta | L 06 26 | L 16 46 36 |
| Coleman Wong | L 57 62 16 | L 16 63 36 |
Serve and return comparison · Last 90 days
| Stat | Kolar | Zhang |
|---|---|---|
| Serve | ||
| 1st Serve In % | 66.5% | 63.9% |
| 1st Serve Pts Won % | 63.5% | 75.2% |
| 2nd Serve Pts Won % | 51.1% | 51.5% |
| Aces / Match | 2.7 | 9.4 |
| Double Faults / Match | 2.9 | 2.3 |
| Break Points Saved % | 55.3% | 53.1% |
| Return | ||
| 1st Return Pts Won % | 36.7% | 27.5% |
| 2nd Return Pts Won % | 50.3% | 48.3% |
| BP Converted % | 47.6% | 40.2% |
| Rally | ||
| Winners / Match | 20.8 | 26.6 |
| Unforced Errors / Match | 36 | 21 |
| Net Pts Won % | 58.6% | 67.9% |
| Total Pts Won % | 50.2% | 50.4% |
| Surface (Hard) | ||
| Hard Win % | 50% | 0% |
Last five matches per player
Otto Virtanen
Lexus Nottingham Open · Semifinals
Jun 17
Jaime Faria
Lexus Nottingham Open · Round of 16
Jun 16
Oliver Okonkwo
Lexus Nottingham Open · 2nd Round Qualifying
Jun 14
Roman Safiullin
Lexus Nottingham Open · Quarterfinals
Jun 14
Mark Ceban
Lexus Nottingham Open · 1st Round Qualifying
Jun 13
Matchup overview
Zdenek Kolar and Zhizhen Zhang face off in the Round of 16 at Koblenz on Hard.
Zdenek Kolar leads 2-0 over 2 previous meetings.
Zdenek Kolar is 3-2 over the last 5 matches. Latest result: L vs Federico Cina (Jun 12).
Zhizhen Zhang is 4-1 over the last 5 matches. Latest result: L vs Otto Virtanen (Jun 17).
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