UMPIRY
EN

Justina Maria Gonzalez Daniele vs Solana Sierra — Curitiba Open - Curitiba Round of 32

Curitiba Open - CuritibaR32ClayTue 27 Oct · 11:00
Justina Maria Gonzalez DanieleWTA #433 · ARG45%
VSToss-up
Solana Sierra(3)WTA #104 · ARG55%
Win probabilityWho is more likely to winToss-up
45%55%

No meaningful edge. Serve performance in the first set is the likeliest tiebreaker.

Umpiry ScoreMatchup strength, 0–10 · not a probability
Gonzalez Daniele J.6.1/10
Even matchBased on 5/6 signal groups5/6
Sierra S.5.4/10
Clear underdogBased on 5/6 signal groups5/6
Why
Surface form7 of last 10 on clayInformative
Recent runLost last 2Informative
Surface switchHard → ClayAgainst the prediction · Gonzalez Daniele J.
Head-to-headNo prior meetingsBoth players
This eventDidn't play here last yearBoth players
ELO1 609
Clay ELO1 603
Last 107–3
Age20
PlaysRight
EarningsCareer $42K2026 $16K
ELO1 808
Clay ELO1 761
Last 102–8
Age22
PlaysRight
EarningsCareer $2.0M2026 $1.1M

Common opponents

0 shared · last 12 months
No common opponents in the last 12 months. Surface form and ELO carry more weight here.

Head-to-head

They have not met before.

Evidence

Gonzalez Daniele J.Sierra S.
FormLast 10 matches each · 2026
Win–loss7–3 (ahead)2–8
Season win rate68% (32–15) (ahead)43% (20–26)
RatingUmpiry ELO
Overall ELO16091808 (ahead)
Clay-court ELO16031761 (ahead)
Serve vs returnLast 43 vs 45 matches
1st-serve points won59%61% (ahead)
Return points won50% (ahead)42%
Aces / match0.42.2 (ahead)
ClutchLast 43 vs 45 matches
Break points saved53%56% (ahead)

Draw

Odds

Conditions

11:00 local
SurfaceClay
Forecast16°C · Drizzle
Wind10 km/h
Humidity65%

Cite this

Umpiry, "Justina Maria Gonzalez Daniele vs Solana Sierra — Curitiba Open - Curitiba Round of 32", https://umpiry.com/match/2026-10-27/daniele-vs-sierra-curitiba-open-curitiba-r32?utm_source=cite (as of 27 October 2026).