Daniil Ostapenkov vs Quinn Vandecasteele — Sioux Falls Qualifying Round of 32
Why
Surface form5 of last 10 on hardSupports Ostapenkov D.
Head-to-headLeads 2–0 on hardSupports Ostapenkov D.
CountryWon 53% in USA (149)Informative
Long matches1 three-setter in 14 daysSupports Ostapenkov D.
Recent runLost last 2Both players
ELO1 655
Hard ELO1 635
Last 105–5
Age23
PlaysRight
EarningsCareer $55K2026 $12K
ELO1 602
Hard ELO1 574
Last 104–6
Age24
PlaysRight
EarningsCareer $95K2026 $28K
Daniil Ostapenkov faces Quinn Vandecasteele in the Sioux Falls qualifying round of 32 on hard. They have met 2 times, Daniil Ostapenkov leading 2–0. Recent hard form is closely matched.
Key context
- Head-to-head: Daniil Ostapenkov leads the head-to-head 2–0. Last met at Columbus 2026.
- Fatigue load: Quinn Vandecasteele carries the heavier recent load — 1 three-setter to 0 in the past fortnight.
- Surface form: Daniil Ostapenkov 5 of 10, Quinn Vandecasteele 4 of 10 on hard recently — Daniil Ostapenkov the sharper of late.
Common opponents
0 shared · last 12 monthsNo common opponents in the last 12 months. Surface form and ELO carry more weight here.
Head-to-head
2 meetings · Ostapenkov D. leads 2–020
- Ostapenkov D.September 2026ColumbusHard2-6 6-7(3)
- Ostapenkov D.September 2026San Diego 2Hard7-5 4-6 6-3
Evidence
Ostapenkov D.Vandecasteele Q.
FormLast 10 matches each · 2026
Win–loss5–5 (ahead)4–6
Season win rate58% (19–14) (ahead)48% (24–26)
RatingUmpiry ELO
Overall ELO1655 (ahead)1602
Hard-court ELO1635 (ahead)1574
Serve vs returnLast 32 vs 48 matches
1st-serve points won70%70%
Return points won39%40% (ahead)
Aces / match6.0 (ahead)5.6
ClutchLast 32 vs 48 matches
Break points saved51%59% (ahead)
Draw
Odds
Cite this
Umpiry, "Daniil Ostapenkov vs Quinn Vandecasteele — Sioux Falls Qualifying Round of 32", https://umpiry.com/match/2026-10-25/ostapenkov-vs-vandecasteele-sioux-falls-q32?utm_source=cite (as of 25 October 2026).