Yaroslav Kostyuk (RUS)
Country: Russia,
Born in 2002 (22 years old),
Category: 16 & Under, Boys
Tournaments played in 2018
See detailed tennis results of Yaroslav Kostyuk| Aug 06 | B16 | 1/16 | Kilkis Cup, Kilkis(GRE) |
| Jul 30 | B16 | 1/8 | Balashiha Open, Balashiha(RUS) |
| Jul 23 | B16 | 1/32 | Peter Hagedorn International, Waiblingen(GER) |
| Jul 16 | B16 | QF | Empire Cup U16, Trnava(SVK) |
| Jul 02 | B16 | 1/8 | The Reykjavik Open, Reykjavik (ISL) |
| Jun 25 | B16 | 1/16 | Hugo Ekker Tennis Academy Cup, Amsterdam(NED) |
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