Jan Kobierski vs Nathan PonwithPrediction, Head-to-Head Results, and Stats
Jan Kobierski and Nathan Ponwith have met 1 time since 2025; Nathan Ponwith leads 1–0. Across all meetings Kobierski has taken 0 sets to Ponwith's 2. Their most recent meeting: Nathan Ponwith won at M15 Huntsville AL (2025).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kobierski | Ponwith | ||
|---|---|---|---|---|
| Indicator | Jan Kobierski | Nathan Ponwith | ||
| Wins in straight sets | 100% | 2/2 | 43% | 3/7 |
| Wins a set when losing | 0% | 0/4 | 30% | 3/10 |
| Goes to a deciding set | 0% | 0/6 | 41% | 7/17 |
| Covers −1.5 sets as favorite | — | 33% | 1/3 | |
| Covers +1.5 sets as underdog | 0% | 0/4 | 36% | 4/11 |
| Tiebreak sets won | 67% | 2/3 | 33% | 2/6 |
| Wins after taking set 1 | 100% | 2/2 | 57% | 4/7 |
| Wins 2-0 after taking set 1 | 100% | 2/2 | 43% | 3/7 |
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. Small sample — read with care. Head-to-head: 1 of 1 completed meetings ended in straight sets (Kobierski 0, Ponwith 1).
Style Matchup
Playing styles and historical archetype record
Kobierski
🛡️ The Spoiler
Ponwith
⚙️ Grinder
Matchup analysis
🛡️ The Spoiler vs ⚙️ Grinder is historically tight (49% vs 51%, 31 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 13, 2025
M15 Huntsville AL
C Clay · Round of 32
Player ROI
Hypothetical if you put 1u on each player to win every one of their matches · Last 90 days
| Metric | Kobierski | Ponwith |
|---|---|---|
| W-L | 0–2 | 2–1 |
| Avg odds | 7.26 | 2.06 |
| ROI % | -100.0% | +10.0% |
| Units P/L | -2.00u | +0.30u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Kobierski | Ponwith |
|---|---|---|
| Countries | 1 | — |
| Events | 1 | — |
| Matches | 1 | — |
| Distance | 0 mi · 0 km | — |
| Route | USA | — |
Host country from each tournament in the last 30 days, including the current event even when a player arrived on a bye. 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
Spencer Johnson
San Diego 2 Challenger · 1st Round Qualifying
Sep 20
John Hallquist Lithen
M15 Wels · 1st Round
Jul 29
Max Wiskandt
M25 Kramsach · 1st Round
Jul 15
David Naharro
M15 Slovenska Bistrica · 3rd Round Qualifying
Jun 23
Alexander Gschiel
Futures 2026
Jun 22
Alexander Gschiel
M15 Slovenska Bistrica · 1st Round Qualifying
Jun 22
Nathan Ponwith
M15 Huntsville AL · Round of 32
Aug 13
Marlon Vankan
M15 Wels · Round of 32
Jul 30
Oliver Okonkwo
M15 Champaign · 2nd Round
Aug 27
David Bakonyi
M15 Champaign · 1st Round
Aug 26
Hiroki Sakagawa
M15 Champaign · 3rd Round Qualifying
Aug 25
Aaron Bailey
M25 Las Vegas 1 · 2nd Round Qualifying
Mar 23
Branko Djuric
M25 Bakersfield 1 · 2nd Round
Mar 19
Jacob Brumm
M25 Bakersfield 1 · 1st Round
Mar 18
Stefan Kozlov
Arizona Tennis Classic · 1st Round Qualifying
Mar 9
Victor Braga
M15 San Jose 1 · 3rd Round Qualifying
Feb 23
Win rate
Matches, sets and games won · Last 12 months · 6–17 matches
| Metric | Kobierski | Ponwith |
|---|---|---|
| Matches won | 33% | 41% |
| Sets won | 33% | 41% |
| Games won | 40% | 49% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kobierski | Ponwith |
|---|---|---|
| ITF M15 | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Kobierski | Ponwith |
|---|---|---|
| Clay | 0 | 1 |
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