Koszalin 2023ITF M15Court speedLost Q1Q13 SepMarcel PolitowiczM. PolitowiczMarcel PolitowiczSets won: 2Set 1: 6Set 2: 4Set 3: 10Jakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 1Set 1: 4Set 2: 6Set 3: 8
Vienna 2023ITF M15Court speedLost Q3Q328 AugLuka MiklavcicL. MiklavcicLuka MiklavcicSets won: 2Set 1: 6Set 2: 6Jakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 0Set 1: 2Set 2: 4Q228 AugJakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 2Set 1: 2Set 2: 6Set 3: 10Daniel OrlitaD. OrlitaDaniel OrlitaSets won: 1Set 1: 6Set 2: 2Set 3: 4Q127 AugJakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 2Set 1: 6Set 2: 6Thomas ZychT. ZychThomas ZychSets won: 0Set 1: 1Set 2: 2
Caslano 2023ITF M15Court speedLost Q1Q120 AugFrancesco LiucciF. LiucciFrancesco LiucciSets won: 2Set 1: 6Set 2: 6Jakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 0Set 1: 3Set 2: 3
Ueberlingen 2023ITF M15Court speedLost Q1Q114 AugGregor RamskoglerG. RamskoglerGregor RamskoglerSets won: 2Set 1: 6Set 2: 6Jakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 0Set 1: 4Set 2: 1
Lodz 2023ITF M25Court speedLost Q2Q27 AugFrancesco FerrariF. FerrariFrancesco FerrariSets won: 2Set 1: 6Set 2: 6Jakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 0Set 1: 3Set 2: 3Q17 AugJakub OstajewskiJ. OstajewskiJakub OstajewskiSets won: 2Set 1: 77Set 2: 6Lech GontarL. GontarLech GontarSets won: 0Set 1: 64Set 2: 2
