Match Info

CHALLENGER MEN - SINGLES: San Diego 2 - Qualification, hard - Semi-finals

Date: 20 September 2026, Sunday


	Jan Kobierski		Spencer Johnson

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Jan Kobierski
9.3%

Spencer Johnson
90.7%

(when we started the analysis)

8.7%

91.3%

Jan Kobierski has improved its chances compared to the initial analysis. (+0.6%)

Spencer Johnson has seen a decrease in its chances compared to the initial analysis. (-0.6%)

Expected Score (Market Odds): 0:2

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Kobierski is ranked ATP: 1433., and Johnson is ranked ATP: 451..

Performances by Johnson have been somewhat unpredictable lately (last 5 matches: 2 wins).

Kobierski could enjoy a physical edge thanks to more rest days ahead of this match.

These two players have no recorded direct encounters in recent history.

✺ - easy match; ✺ - difficult match;

- Jan Kobierski
ITF Tournaments
29.07.26	Jan Kobierski - John Hallquist Lithen	0:2 ✺
15.07.26	Jan Kobierski - Max Wiskandt	0:2 ✺
12.08.25	Jan Kobierski - Nathan Ponwith	0:2 ✺
16.07.25	Jan Kobierski - Dennis Novak	0:2 ✺
09.07.25	Stefano DAgostino - Jan Kobierski	2:0 ✺
Form Coefficient (based on results and difficulties of last matches) - 0 LLLLL
- Spencer Johnson
ATP Challenger
14.09.26	Spencer Johnson - Erik Arutiunian	0:2 ✺
13.09.26	Spencer Johnson - Vignesh Gogineni	2:1 ✺
ATP US Open
24.08.26	Spencer Johnson - Christian Garin	1:2 ✺
ATP Challenger
08.08.26	Spencer Johnson - Andre Ilagan	0:2 ✺
07.08.26	Spencer Johnson - Andres Martin	2:1 ✺
Form Coefficient (based on results and difficulties of last matches) - 3.9 LWLLW

Jan Kobierski - Spencer Johnson: Predictions, Live Scores & TV Guide