Iiro Vasa vs Szymon KielanPrediction, Head-to-Head Results, and Stats
Iiro Vasa and Szymon Kielan have met 1 time since 2026; Iiro Vasa leads 1–0. Across all meetings Vasa has taken 2 sets to Kielan's 0. Their most recent meeting: Iiro Vasa won at Tenerife Challenger 1 (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Vasa | Kielan | ||
|---|---|---|---|---|
| Indicator | Iiro Vasa | Szymon Kielan | ||
| Wins in straight sets | 62% | 18/29 | 0% | 0/1 |
| Wins a set when losing | 52% | 12/23 | 0% | 0/3 |
| Goes to a deciding set | 44% | 23/52 | 25% | 1/4 |
| Covers −1.5 sets as favorite | 40% | 6/15 | 0% | 0/1 |
| Covers +1.5 sets as underdog | 76% | 19/25 | 33% | 1/3 |
| Tiebreak sets won | 58% | 14/24 | — | |
| Wins after taking set 1 | 76% | 25/33 | 100% | 1/1 |
| Wins 2-0 after taking set 1 | 55% | 18/33 | 0% | 0/1 |
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 (Vasa 1, Kielan 0).
Style Matchup
Playing styles and historical archetype record
Vasa
🤖 Servebot
Kielan
💥 Big Hitter
Matchup analysis
🤖 Servebot vs 💥 Big Hitter is historically tight (51% vs 49%, 4,932 matches). Neither style has a clear edge, so form, surface, and the head-to-head matter most.
Previous meetings
1 career meeting, newest first
Feb 1, 2026
Tenerife Challenger 1
H Hard · 1st Round Qualifying
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Vasa | Kielan |
|---|---|---|
| W-L | 4–9 | 1–1 |
| Avg odds | 2.21 | 4.89 |
| ROI % | -45.0% | +91.0% |
| Units P/L | -5.85u | +1.82u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Recent Form
Last five matches per player
Dominick Mosejczuk
M15 Fayetteville · 1st Round
Sep 30
Wojciech Marek
M25 Falun · 2nd Round
Sep 23
Saba George Nanobashvili
M25 Falun · 1st Round
Sep 21
Loann Massard
M25 Nevers · 1st Round
Sep 15
Dimitris Sakellaridis
M25 Meerbusch · 2nd Round
Sep 3
Niklas Grunewald
M25 Meerbusch · 1st Round
Sep 1
Eero Vasa
M25 Oldenzaal · 1st Round
Aug 26
Emile Hudd
M15 Turku · 1st Round
Aug 11
Niels Visker
Porto Challenger · 3rd Round Qualifying
Aug 31
Yanis Ghazouani Durand
Porto Challenger · 1st Round Qualifying
Aug 30
Daniel Dutra da Silva
Chisinau Challenger · 3rd Round Qualifying
May 25
Joshua Sheehy
Sarasota Challenger · 1st Round Qualifying
Apr 5
Gabriele Piraino
Tenerife Challenger 2 · 1st Round Qualifying
Feb 8
Iiro Vasa
Tenerife Challenger 1 · 1st Round Qualifying
Feb 1
Lorenzo Carboni
Olbia · 2nd Round Qualifying
Oct 13
Alessandro Spadola
Olbia · 1st Round Qualifying
Oct 12
Win rate
Matches, sets and games won · Last 12 months · 4–52 matches
| Metric | Vasa | Kielan |
|---|---|---|
| Matches won | 56% | 25% |
| Sets won | 55% | 22% |
| Games won | 52% | 37% |
Record by tier
Head-to-head record by tournament tier
| Stage | Vasa | Kielan |
|---|---|---|
| ATP Challenger Tour | 1 | 0 |
By surface
Head-to-head record per surface
| Surface | Vasa | Kielan |
|---|---|---|
| Hard | 1 | 0 |
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