Ryan Harrison vs Stefan KozlovPrediction, Head-to-Head Results, and Stats
Ryan Harrison and Stefan Kozlov have met 2 times since 2023; they are level 1–1. Their first meeting came at Winnetka in 2023 on hard. On hard courts they are level 1–1. Across all meetings Harrison has taken 2 sets to Kozlov's 2. Their most recent meeting: Stefan Kozlov won at Cleveland Challenger (2023).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Harrison | Kozlov | ||
|---|---|---|---|---|
| Indicator | Ryan Harrison | Stefan Kozlov | ||
| Wins in straight sets | — | 55% | 16/29 | |
| Wins a set when losing | — | 48% | 13/27 | |
| Goes to a deciding set | — | 46% | 26/56 | |
| Covers −1.5 sets as favorite | — | 42% | 13/31 | |
| Covers +1.5 sets as underdog | — | 68% | 15/22 | |
| Tiebreak sets won | — | 41% | 7/17 | |
| Wins after taking set 1 | — | 87% | 27/31 | |
| Wins 2-0 after taking set 1 | — | 52% | 16/31 | |
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. Small sample — read with care. Head-to-head: 2 of 2 completed meetings ended in straight sets (Harrison 1, Kozlov 1).
Style Matchup
Playing styles and historical archetype record
Harrison
💥 Big Hitter
Kozlov
🪃 Counterpuncher
Matchup analysis
💥 Big Hitter vs 🪃 Counterpuncher is historically tight (52% vs 48%, 3,969 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
2 career meetings, newest first
Feb 2, 2023
Cleveland Challenger
H Hard · 2nd Round
Feb 2, 2023
Winnetka
H Hard · Round of 32
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Harrison | Kozlov |
|---|---|---|
| W-L | - | 2–7 |
| Avg odds | - | 2.20 |
| ROI % | - | -60.9% |
| Units P/L | - | -5.48u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Harrison | Kozlov |
|---|---|---|
| Countries | — | 1 |
| Events | — | 2 |
| Matches | — | 3 |
| Distance | — | 1,953 mi · 3,143 km |
| Route | — | USA |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. 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.
Recent Form
Last five matches per player
Blake Ellis
Cary 1 · 2nd Round Qualifying
Aug 7
Donald Young
Memphis · Semifinals
Aug 6
Nicolas Mejia
Cary 1 · 1st Round Qualifying
Aug 6
Zachary Svajda
Washington · 1st Round Qualifying
Jul 29
Kaylan Bigun
Tallahassee · 1st Round Qualifying
Apr 17
Guido Andreozzi
Sarasota · 1st Round Qualifying
Apr 9
Aleksandar Kovacevic
Waco Challenger · 1st Round
Feb 28
Elmar Ejupovic
Rome Challenger · 2nd Round
Feb 22
Mitchell Krueger
Columbus Challenger · 2nd Round
Oct 1
James Kent Trotter
Columbus Challenger · 1st Round
Sep 29
Colton Smith
San Diego 2 Challenger · 1st Round
Sep 22
Darwin Blanch
Tiburon Challenger · 1st Round
Sep 15
Harry Wendelken
Brownsburg Challenger · 2nd Round
Aug 13
Aidan Mayo
Brownsburg Challenger · 1st Round
Aug 12
Zachary Svajda
Citi Open - Washington · 1st Round Qualifying
Jul 25
Alan Magadan
Bloomfield Hills Challenger · 1st Round
Jul 21
Rivalry momentum
Cumulative head-to-head lead over time
Win rate
Matches, sets and games won · Last 12 months · 56–56 matches
| Metric | Harrison | Kozlov |
|---|---|---|
| Matches won | - | 52% |
| Sets won | - | 51% |
| Games won | - | 51% |
Record by tier
Head-to-head record by tournament tier
| Stage | Harrison | Kozlov |
|---|---|---|
| ATP Challenger Tour | 1 | 1 |
By surface
Head-to-head record per surface
| Surface | Harrison | Kozlov |
|---|---|---|
| Hard | 1 | 1 |
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