Harry Wendelken vs Stefan KozlovPrediction, Head-to-Head Results, and Stats
Harry Wendelken and Stefan Kozlov have met 2 times since 2026; Harry Wendelken leads 2–0. Their first meeting came at Glasgow Challenger in 2026 on hard. On hard courts Wendelken leads 2–0. Wendelken has won the last 2 meetings. Across all meetings Wendelken has taken 4 sets to Kozlov's 2. Their most recent meeting: Harry Wendelken won at Brownsburg Challenger (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Wendelken | Kozlov | ||
|---|---|---|---|---|
| Indicator | Harry Wendelken | Stefan Kozlov | ||
| Wins in straight sets | 64% | 35/55 | 56% | 15/27 |
| Wins a set when losing | 48% | 13/27 | 52% | 11/21 |
| Goes to a deciding set | 40% | 33/82 | 48% | 23/48 |
| Covers −1.5 sets as favorite | 48% | 23/48 | 46% | 13/28 |
| Covers +1.5 sets as underdog | 79% | 23/29 | 76% | 13/17 |
| Tiebreak sets won | 46% | 13/28 | 47% | 7/15 |
| Wins after taking set 1 | 84% | 46/55 | 87% | 26/30 |
| Wins 2-0 after taking set 1 | 64% | 35/55 | 50% | 15/30 |
Colored rows are higher-is-better: green above 50%, red below. Favorite/underdog set by book odds; cover rows count only matches with odds on record. Head-to-head: 0 of 2 completed meetings ended in straight sets (Wendelken 0, Kozlov 0).
Style Matchup
Playing styles and historical archetype record
Wendelken
🪃 Counterpuncher
Kozlov
🪃 Counterpuncher
Matchup analysis
Both Harry Wendelken and Stefan Kozlov are 🪃 Counterpuncher types. Mirror matchups usually come down to execution, fitness, and surface fit, across 2,818 matches in our dataset the historical split is about even.
Previous meetings
2 career meetings, newest first
Aug 13, 2026
Brownsburg Challenger
H Hard · 2nd Round
Jan 13, 2026
Glasgow Challenger
H Hard · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Wendelken | Kozlov | ||
|---|---|---|---|---|
| Outcome | Harry Wendelken | Stefan Kozlov | ||
| 1 or more | 92% | 11/12 | 83% | 5/6 |
| 3 or more | 67% | 8/12 | 50% | 3/6 |
| 5 or more | 50% | 6/12 | 0% | 0/6 |
| 10 or more | 0% | 0/12 | 0% | 0/6 |
| 15 or more | 0% | 0/12 | 0% | 0/6 |
| 20 or more | 0% | 0/12 | 0% | 0/6 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Wendelken | Kozlov |
|---|---|---|
| W-L | 4–7 | 3–4 |
| Avg odds | 2.37 | 2.54 |
| ROI % | -16.8% | +13.0% |
| Units P/L | -1.85u | +0.91u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Wendelken | Kozlov |
|---|---|---|
| Countries | 1 | 1 |
| Events | 2 | 1 |
| Matches | 4 | 2 |
| Distance | 161 mi · 259 km | 0 mi · 0 km |
| Route | USA | USA |
Host country from the tournament each match was played in, over the last 30 days. Route is the order of countries visited; consecutive stops in the same country are shown once. Distance is the great-circle total between host cities, shown only when every stop in the window is geocoded. A rough fatigue signal, not a headline stat.
Common opponents
Results vs. opponents both players faced · Last 12 months
Wendelken has a higher win rate against shared opponents (33% vs Kozlov's 0%).
| Opponent | Wendelken | Kozlov |
|---|---|---|
| Michael Mmoh | L 46 26 | L 57 26 |
| Yi Zhou | W 61 46 61 | L 36 63 46 |
| Toby Samuel | L 36 06 | L 67 46 |
Recent Form
Last five matches per player
Lloyd Harris
Brownsburg Challenger · Quarterfinals
Aug 14
Stefan Kozlov
Brownsburg Challenger · 2nd Round
Aug 13
Borna Gojo
Brownsburg Challenger · 1st Round
Aug 11
Michael Mmoh
Lexington Challenger · 1st Round
Aug 4
Keegan Rice
Vancouver Challenger · 2nd Round
Jul 30
Valentin Royer
Wimbledon - London · 1st Round
Jun 30
Botic van de Zandschulp
HSBC Championships - London · 1st Round
Jun 15
Aleksandar Vukic
HSBC Championships · 2nd Round Qualifying
Jun 14
Harry Wendelken
Brownsburg Challenger · 2nd Round
Aug 13
Aidan Mayo
Brownsburg Challenger · 1st Round
Aug 12
Alan Magadan
Bloomfield Hills Challenger · 1st Round
Jul 21
Yi Zhou
Pozoblanco Challenger · 1st Round
Jul 14
Tommaso Compagnucci
Bundesliga - men
Jul 12
Jacob Fearnley
Newport Challenger · 2nd Round
Jul 10
Yibing Wu
Newport Challenger · 1st Round
Jul 9
Garrett Johns
Newport challenger
Jul 7
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 48–83 matches
| Metric | Wendelken | Kozlov |
|---|---|---|
| Matches won | 66% | 56% |
| Sets won | 62% | 55% |
| Games won | 55% | 52% |
Record by tier
Head-to-head record by tournament tier
| Stage | Wendelken | Kozlov |
|---|---|---|
| ATP Challenger Tour | 2 | 0 |
By surface
Head-to-head record per surface
| Surface | Wendelken | Kozlov |
|---|---|---|
| Hard | 2 | 0 |
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