John Sperle vs Rafael GiotisPrediction, Head-to-Head Results, and Stats
John Sperle and Rafael Giotis have met 1 time since 2026; Rafael Giotis leads 1–0. Across all meetings Sperle has taken 0 sets to Giotis's 2. Their most recent meeting: Rafael Giotis won at M15 Lambermont (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Sperle | Giotis | ||
|---|---|---|---|---|
| Indicator | John Sperle | Rafael Giotis | ||
| Wins in straight sets | 75% | 21/28 | 78% | 7/9 |
| Wins a set when losing | 21% | 5/24 | 8% | 1/12 |
| Goes to a deciding set | 23% | 12/52 | 14% | 3/21 |
| Covers −1.5 sets as favorite | 63% | 17/27 | 100% | 2/2 |
| Covers +1.5 sets as underdog | 29% | 5/17 | 31% | 4/13 |
| Tiebreak sets won | 36% | 5/14 | 67% | 4/6 |
| Wins after taking set 1 | 93% | 25/27 | 100% | 7/7 |
| Wins 2-0 after taking set 1 | 78% | 21/27 | 100% | 7/7 |
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: 1 of 1 completed meetings ended in straight sets (Sperle 0, Giotis 1).
Style Matchup
Playing styles and historical archetype record
Sperle
⚔️ The Gladiator
Giotis
⚙️ Grinder
Matchup analysis
⚔️ The Gladiator vs ⚙️ Grinder is historically tight (48% vs 52%, 646 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
1 career meeting, newest first
Aug 20, 2026
M15 Lambermont
C Clay · 2nd Round
Prop Research
Hit rates on common betting markets · Last 90 days
| Outcome | Sperle | Giotis | ||
|---|---|---|---|---|
| Outcome | John Sperle | Rafael Giotis | ||
| 1 or more | 71% | 10/14 | 86% | 6/7 |
| 3 or more | 7% | 1/14 | 14% | 1/7 |
| 5 or more | 0% | 0/14 | 0% | 0/7 |
| 10 or more | 0% | 0/14 | 0% | 0/7 |
| 15 or more | 0% | 0/14 | 0% | 0/7 |
| 20 or more | 0% | 0/14 | 0% | 0/7 |
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Sperle | Giotis |
|---|---|---|
| W-L | 10–7 | 3–4 |
| Avg odds | 1.55 | 7.59 |
| ROI % | -15.6% | +124.1% |
| Units P/L | -2.65u | +8.69u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Sperle | Giotis |
|---|---|---|
| Countries | 3 | 1 |
| Events | 3 | 1 |
| Matches | 8 | 3 |
| Distance | — | — |
| Route | GER → BEL → HUN | BEL |
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 Giotis posted a 50% win rate.
| Opponent | Sperle | Giotis |
|---|---|---|
| Jack Loge | L 26 67 | L 26 16 |
| Nikita Bilozertsev | W 76 63 | W 46 63 76 |
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
Martin Van Der Meerschen
M15 Lambermont · Quarterfinals
Aug 21
John Sperle
M15 Lambermont · 2nd Round
Aug 20
Fons Van Sambeek
M15 Lambermont · 1st Round
Aug 19
Jack Loge
M25 Metzingen · 1st Round
Jul 22
Keshav Chopra
M15 Kayseri · 1st Round
Jun 24
Ivan Marrero Curbelo
M15 Kayseri · 2nd Round
Jun 18
Ruben Lebron Puerta
M15 Kayseri · 1st Round
Jun 16
Ruben Lebron Puerta
Futures 2026
Jun 16
Win rate
Matches, sets and games won · Last 12 months · 21–52 matches
| Metric | Sperle | Giotis |
|---|---|---|
| Matches won | 54% | 43% |
| Sets won | 53% | 42% |
| Games won | 53% | 44% |
Record by tier
Head-to-head record by tournament tier
| Stage | Sperle | Giotis |
|---|---|---|
| ITF M15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Sperle | Giotis |
|---|---|---|
| Clay | 0 | 1 |
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