Aidan Mayo vs Stefan KozlovPrediction, Head-to-Head Results, and Stats
Aidan Mayo and Stefan Kozlov have met 2 times since 2026; Stefan Kozlov leads 2–0. Their first meeting came at Newport Challenger in 2026 on grass. Kozlov has won the last 2 meetings. Across all meetings Mayo has taken 2 sets to Kozlov's 4. Their most recent meeting: Stefan Kozlov won at Brownsburg Challenger (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Mayo | Kozlov | ||
|---|---|---|---|---|
| Indicator | Aidan Mayo | Stefan Kozlov | ||
| Wins in straight sets | 74% | 20/27 | 55% | 16/29 |
| Wins a set when losing | 62% | 13/21 | 48% | 13/27 |
| Goes to a deciding set | 42% | 20/48 | 46% | 26/56 |
| Covers −1.5 sets as favorite | 39% | 9/23 | 42% | 13/31 |
| Covers +1.5 sets as underdog | 65% | 13/20 | 68% | 15/22 |
| Tiebreak sets won | 38% | 10/26 | 41% | 7/17 |
| Wins after taking set 1 | 88% | 21/24 | 87% | 27/31 |
| Wins 2-0 after taking set 1 | 83% | 20/24 | 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. Head-to-head: 0 of 2 completed meetings ended in straight sets (Mayo 0, Kozlov 0).
Style Matchup
Playing styles and historical archetype record
Mayo
💥 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
Aug 12, 2026
Brownsburg Challenger
H Hard · 1st Round
Jul 5, 2026
Newport Challenger
G Grass · 1st Round Qualifying
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Mayo | Kozlov | ||
|---|---|---|---|---|
| Outcome | Aidan Mayo | Stefan Kozlov | ||
| 1 or more | 94% | 15/16 | 71% | 5/7 |
| 3 or more | 81% | 13/16 | 29% | 2/7 |
| 5 or more | 69% | 11/16 | 0% | 0/7 |
| 10 or more | 31% | 5/16 | 0% | 0/7 |
| 15 or more | 6% | 1/16 | 0% | 0/7 |
| 20 or more | 0% | 0/16 | 0% | 0/7 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Mayo | Kozlov |
|---|---|---|
| W-L | 14–9 | 2–7 |
| Avg odds | 1.68 | 2.20 |
| ROI % | -0.4% | -60.9% |
| Units P/L | -0.10u | -5.48u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Mayo | Kozlov |
|---|---|---|
| Countries | 1 | 1 |
| Events | 3 | 3 |
| Matches | 6 | 4 |
| Distance | 2,418 mi · 3,891 km | 2,418 mi · 3,891 km |
| Route | USA | 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.
Common opponents
Results vs. opponents both players faced · Last 12 months
Mayo has a higher win rate against shared opponents (57% vs Kozlov's 14%).
| Opponent | Mayo | Kozlov |
|---|---|---|
| Colton Smith | W 62 76 | L 46 26 |
| Andres Martin | W 64 64 | L 26 26 |
| Rodrigo Pacheco Mendez | W 64 76 | L 46 26 |
| James Duckworth | L 64 36 46 | L 36 26 |
| Roger Pascual Ferra | W 61 64 | L 46 46 |
| Alan Magadan | L 67 63 67 | L 63 16 67 |
| Daniil Glinka | L 67 62 67 | W 62 63 |
Recent Form
Last five matches per player
Abedallah Shelbayh
Columbus Challenger · Quarterfinals
Oct 2
Colton Smith
Columbus Challenger · 2nd Round
Oct 1
Nikita Filin
Columbus Challenger · 1st Round
Sep 30
Sebastian Gorzny
San Diego 2 Challenger · 3rd Round Qualifying
Sep 21
Jordan Lee
San Diego 2 Challenger · 1st Round Qualifying
Sep 20
Ryan Seggerman
Tiburon Challenger · 1st Round
Sep 15
Andy Andrade
Kingston 2 Challenger · Final
Aug 30
Luis Felipe Miguel
Kingston 2 Challenger · Semifinals
Aug 29
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 · 48–56 matches
| Metric | Mayo | Kozlov |
|---|---|---|
| Matches won | 56% | 52% |
| Sets won | 58% | 51% |
| Games won | 53% | 51% |
Record by tier
Head-to-head record by tournament tier
| Stage | Mayo | Kozlov |
|---|---|---|
| ATP Challenger Tour | 0 | 2 |
By surface
Head-to-head record per surface
| Surface | Mayo | Kozlov |
|---|---|---|
| Hard | 0 | 1 |
| Grass | 0 | 1 |
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