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 | 73% | 11/15 | 56% | 15/27 |
| Wins a set when losing | 67% | 10/15 | 52% | 11/21 |
| Goes to a deciding set | 47% | 14/30 | 48% | 23/48 |
| Covers −1.5 sets as favorite | 40% | 4/10 | 46% | 13/28 |
| Covers +1.5 sets as underdog | 64% | 9/14 | 76% | 13/17 |
| Tiebreak sets won | 42% | 8/19 | 47% | 7/15 |
| Wins after taking set 1 | 92% | 12/13 | 87% | 26/30 |
| Wins 2-0 after taking set 1 | 85% | 11/13 | 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 (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 (51% vs 49%, 2,363 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
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Mayo | Kozlov | ||
|---|---|---|---|---|
| Outcome | Aidan Mayo | Stefan Kozlov | ||
| 1 or more | 100% | 9/9 | 83% | 5/6 |
| 3 or more | 89% | 8/9 | 50% | 3/6 |
| 5 or more | 67% | 6/9 | 0% | 0/6 |
| 10 or more | 44% | 4/9 | 0% | 0/6 |
| 15 or more | 11% | 1/9 | 0% | 0/6 |
| 20 or more | 0% | 0/9 | 0% | 0/6 |
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 | 3–6 | 3–4 |
| Avg odds | 1.78 | 2.54 |
| ROI % | -57.7% | +13.0% |
| Units P/L | -5.19u | +0.91u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Mayo | Kozlov |
|---|---|---|
| Countries | 2 | 1 |
| Events | 3 | 1 |
| Matches | 7 | 2 |
| Distance | 1,777 mi · 2,860 km | 0 mi · 0 km |
| Route | USA → JAM | 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
Across 3 shared opponents, both Mayo and Kozlov posted a 33% win rate.
| Opponent | Mayo | Kozlov |
|---|---|---|
| Andres Martin | W 64 64 | L 26 26 |
| James Duckworth | L 64 36 46 | L 36 26 |
| Daniil Glinka | L 67 62 67 | W 62 63 |
Recent Form
Last five matches per player
Andy Andrade
Kingston 2 Challenger · Final
Aug 30
Luis Felipe Miguel
Kingston 2 Challenger · Semifinals
Aug 29
Andres Martin
Kingston 2 Challenger · Quarterfinals
Aug 27
Benjamin Willwerth
Kingston 2 Challenger · 2nd Round
Aug 26
Matthew Forbes
Kingston 2 Challenger · 1st Round
Aug 25
Stefan Kozlov
Brownsburg Challenger · 1st Round
Aug 12
Rei Sakamoto
Lexington Challenger · 1st Round
Aug 4
James Duckworth
Mifel Tennis Open - Los Cabos · 1st Round
Jul 29
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 · 30–48 matches
| Metric | Mayo | Kozlov |
|---|---|---|
| Matches won | 50% | 56% |
| Sets won | 54% | 55% |
| Games won | 51% | 52% |
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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