John Sperle vs Ruben HartigPrediction, Head-to-Head Results, and Stats
John Sperle and Ruben Hartig have met 1 time since 2026; John Sperle leads 1–0. Across all meetings Sperle has taken 2 sets to Hartig's 0. Their most recent meeting: John Sperle won at M15 Oegstgeest (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Sperle | Hartig | ||
|---|---|---|---|---|
| Indicator | John Sperle | Ruben Hartig | ||
| Wins in straight sets | 75% | 21/28 | 67% | 2/3 |
| Wins a set when losing | 21% | 5/24 | 40% | 2/5 |
| Goes to a deciding set | 23% | 12/52 | 38% | 3/8 |
| Covers −1.5 sets as favorite | 63% | 17/27 | 50% | 1/2 |
| Covers +1.5 sets as underdog | 29% | 5/17 | 67% | 4/6 |
| Tiebreak sets won | 36% | 5/14 | — | |
| Wins after taking set 1 | 93% | 25/27 | 60% | 3/5 |
| Wins 2-0 after taking set 1 | 78% | 21/27 | 40% | 2/5 |
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 (Sperle 1, Hartig 0).
Style Matchup
Playing styles and historical archetype record
Sperle
⚔️ The Gladiator
Hartig
⚔️ The Gladiator
Matchup analysis
Both John Sperle and Ruben Hartig are ⚔️ The Gladiator types. Mirror matchups usually come down to execution, fitness, and surface fit, across 1,488 matches in our dataset the historical split is about even.
Previous meetings
1 career meeting, newest first
Apr 29, 2026
M15 Oegstgeest
C Clay · 1st Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Sperle | Hartig | ||
|---|---|---|---|---|
| Outcome | John Sperle | Ruben Hartig | ||
| 1 or more | 71% | 10/14 | 100% | 6/6 |
| 3 or more | 7% | 1/14 | 33% | 2/6 |
| 5 or more | 0% | 0/14 | 0% | 0/6 |
| 10 or more | 0% | 0/14 | 0% | 0/6 |
| 15 or more | 0% | 0/14 | 0% | 0/6 |
| 20 or more | 0% | 0/14 | 0% | 0/6 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Sperle | Hartig |
|---|---|---|
| W-L | 10–7 | 3–2 |
| Avg odds | 1.55 | 4.06 |
| ROI % | -15.6% | +58.4% |
| Units P/L | -2.65u | +2.92u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Sperle | Hartig |
|---|---|---|
| Countries | 3 | — |
| Events | 3 | — |
| Matches | 8 | — |
| Distance | — | — |
| Route | GER → BEL → HUN | — |
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 2 shared opponents, both Sperle and Hartig posted a 100% win rate.
| Opponent | Sperle | Hartig |
|---|---|---|
| Linus Lagerbohm | W 64 64 | W 75 64 |
| Nikita Bilozertsev | W 76 63 | W 60 61 |
Recent Form
Last five matches per player
Stepan Baum
M15 Pecs · Semifinals
Aug 29
Lorenzo Bocchi
M15 Pecs · Quarterfinals
Aug 28
Kolos Kincses
M15 Pecs · 2nd Round
Aug 27
Tomas Lanik
M15 Pecs · 1st Round
Aug 26
Rafael Giotis
M15 Lambermont · 2nd Round
Aug 20
Justas Trainauskas
M15 Lambermont · 1st Round
Aug 19
Marlon Vankan
M15 Trier · 2nd Round
Aug 13
Linus Lagerbohm
M15 Trier · 1st Round
Aug 12
Richard Antoni
M15 Uslar · 2nd Round
Jul 16
Iannis Miletich
M15 Uslar · 1st Round
Jul 15
Daniel Salazar
M15 Kamen · 2nd Round
Jun 25
Linus Lagerbohm
M15 Kamen · 1st Round
Jun 24
Radu David Turcanu
M15 Constanta · 2nd Round
Jun 18
Iulius Maximus Stoica
M15 Constanta · 1st Round
Jun 17
Mihai Alexandru Coman
M15 Bucharest · 1st Round
May 20
John Sperle
M15 Oegstgeest · 1st Round
Apr 29
Win rate
Matches, sets and games won · Last 12 months · 8–52 matches
| Metric | Sperle | Hartig |
|---|---|---|
| Matches won | 54% | 38% |
| Sets won | 53% | 42% |
| Games won | 53% | 45% |
Record by tier
Head-to-head record by tournament tier
| Stage | Sperle | Hartig |
|---|---|---|
| ITF M15 | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Sperle | Hartig |
|---|---|---|
| Clay | 1 | 0 |
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