L48: (16) Jan Choinski WR 279 (CH = 234 in April last year) vs BYE
L32: (16) Jan Choinski WR 276 vs Tomislav Brkic (BIH) WR 337 (CH = 212 in October 2014)
L32: (16) Jan Choinski WR 276 defeated Tomislav Brkic (BIH) WR 337 by 3-6 6-4 6-3
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L16: (16) Jan Choinski WR 276 vs Jeremy Jahn (GER) WR 420 (CH = 197 in January 2017)
Eventually...
L16: (16) Jan Choinski WR 276 defeated Jeremy Jahn (GER) WR 420 by 6-3 6-7(7) 6-4
QF: (10) Filip Horansky (SVK) WR 187 (CH = 161 in May) vs (16) Jan Choinski WR 276
QF: (10) Filip Horansky (SVK) WR 187 defeated (16) Jan Choinski WR 276 by 1 & 0