Jan Kobierski vs Spencer JohnsonPrediction, Head-to-Head Results, and Stats
Jan Kobierski and Spencer Johnson have met 1 time since 2026; Spencer Johnson leads 1–0. Across all meetings Kobierski has taken 0 sets to Johnson's 2. Their most recent meeting: Spencer Johnson won at San Diego 2 Challenger (2026).
Spread & Straight-Sets Form
Completed best-of-3 matches · Last 12 months
| Indicator | Kobierski | Johnson | ||
|---|---|---|---|---|
| Indicator | Jan Kobierski | Spencer Johnson | ||
| Wins in straight sets | 100% | 2/2 | 82% | 32/39 |
| Wins a set when losing | 0% | 0/4 | 45% | 5/11 |
| Goes to a deciding set | 0% | 0/6 | 24% | 12/50 |
| Covers −1.5 sets as favorite | — | 66% | 27/41 | |
| Covers +1.5 sets as underdog | 0% | 0/4 | 80% | 4/5 |
| Tiebreak sets won | 67% | 2/3 | 63% | 17/27 |
| Wins after taking set 1 | 100% | 2/2 | 95% | 37/39 |
| Wins 2-0 after taking set 1 | 100% | 2/2 | 82% | 32/39 |
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, Johnson 1).
Style Matchup
Playing styles and historical archetype record
Kobierski
🛡️ The Spoiler
Johnson
💥 Big Hitter
Matchup analysis
The 💥 Big Hitter archetype wins about 60% vs 🛡️ The Spoiler across 117 matches in our dataset: a stylistic lean toward Spencer Johnson.
Big Hitter players often use power groundstrokes and high winner count to pressure the the spoiler's strong court coverage.
Previous meetings
1 career meeting, newest first
Sep 20, 2026
San Diego 2 Challenger
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 | Kobierski | Johnson |
|---|---|---|
| W-L | 0–2 | 9–6 |
| Avg odds | 7.26 | 1.54 |
| ROI % | -100.0% | -10.8% |
| Units P/L | -2.00u | -1.62u |
Small sample: ROI stabilizes with more matches; fewer than 10 in the window is noisy.
Travel
Last 30 days
| Metric | Kobierski | Johnson |
|---|---|---|
| Countries | 1 | 1 |
| Events | 1 | 2 |
| Matches | 1 | 4 |
| Distance | 0 mi · 0 km | 465 mi · 748 km |
| Route | USA | 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
Tristan Boyer
San Diego 2 Challenger · 1st Round
Sep 22
Jakub Vrba
San Diego 2 Challenger · 3rd Round Qualifying
Sep 21
Jan Kobierski
San Diego 2 Challenger · 1st Round Qualifying
Sep 20
Erik Arutiunian
Tiburon Challenger · 3rd Round Qualifying
Sep 14
Vignesh Gogineni
Tiburon Challenger · 1st Round Qualifying
Sep 13
Cristian Garin
U.S. Open - New York · 1st Round Qualifying
Aug 24
Andre Ilagan
Lexington Challenger · Semifinals
Aug 8
Andres Martin
Lexington Challenger · Quarterfinals
Aug 7
Win rate
Matches, sets and games won · Last 12 months · 6–50 matches
| Metric | Kobierski | Johnson |
|---|---|---|
| Matches won | 33% | 78% |
| Sets won | 33% | 74% |
| Games won | 40% | 58% |
Record by tier
Head-to-head record by tournament tier
| Stage | Kobierski | Johnson |
|---|---|---|
| ATP Challenger Tour | 0 | 1 |
By surface
Head-to-head record per surface
| Surface | Kobierski | Johnson |
|---|---|---|
| Hard | 0 | 1 |
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