Calvin Mueller vs Stephan IserathPrediction, Head-to-Head Results, and Stats
Calvin Mueller and Stephan Iserath have met 1 time since 2026; Calvin Mueller leads 1–0. Across all meetings Mueller has taken 2 sets to Iserath's 0. Their most recent meeting: Calvin Mueller won at M15 Allershausen (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Mueller | Iserath | ||
|---|---|---|---|---|
| Indicator | Calvin Mueller | Stephan Iserath | ||
| Wins in straight sets | 59% | 13/22 | — | |
| Wins a set when losing | 22% | 4/18 | 0% | 0/2 |
| Goes to a deciding set | 33% | 13/40 | 0% | 0/2 |
| Covers −1.5 sets as favorite | 39% | 7/18 | — | |
| Covers +1.5 sets as underdog | 62% | 13/21 | 0% | 0/1 |
| Tiebreak sets won | 70% | 7/10 | — | |
| Wins after taking set 1 | 79% | 15/19 | — | |
| Wins 2-0 after taking set 1 | 68% | 13/19 | — | |
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: 1 of 1 completed meetings ended in straight sets (Mueller 1, Iserath 0).
Previous meetings
1 career meeting, newest first
Aug 26, 2026
M15 Allershausen
C Clay · 1st Round
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Mueller | Iserath |
|---|---|---|
| W-L | 5–6 | 0–1 |
| Avg odds | 2.29 | 6.84 |
| ROI % | -23.7% | -100.0% |
| Units P/L | -2.61u | -1.00u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Mueller | Iserath |
|---|---|---|
| Countries | 2 | 1 |
| Events | 3 | 1 |
| Matches | 5 | 1 |
| Distance | — | — |
| Route | SUI → GER | GER |
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.
Recent Form
Last five matches per player
Jakub Filip
M15 Allershausen · Semifinals
Aug 29
Hazem Naow
M15 Allershausen · Quarterfinals
Aug 28
Maximilian Alessandro Erhardt
M15 Allershausen · 2nd Round
Aug 27
Stephan Iserath
M15 Allershausen · 1st Round
Aug 26
Daniel Masur
M25 Ueberlingen · 1st Round
Aug 18
Justin Schlageter
M25 Muttenz · 1st Round
Aug 11
Daniel Siniakov
M25 Kassel · 1st Round
Jul 8
Saba Purtseladze
M25 Marburg · 2nd Round
Jul 2
Calvin Mueller
M15 Allershausen · 1st Round
Aug 26
Gilberto Ravasio
M15 Monastir · Round of 32
Feb 11
Win rate
Matches, sets and games won · Last 12 months · 2–40 matches
| Metric | Mueller | Iserath |
|---|---|---|
| Matches won | 55% | 0% |
| Sets won | 52% | 0% |
| Games won | 50% | 30% |
Record by tier
Head-to-head record by tournament tier
| Stage | Mueller | Iserath |
|---|---|---|
| ITF M15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Mueller | Iserath |
|---|---|---|
| Clay | 1 | 0 |
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