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Sofia Costoulas vs Marina Bassols Ribera — Cali Open - Cali Round of 32

Cali Open - CaliR32ClayTue 3 Nov · 11:00
Win probabilityWho is more likely to winSlight edge · Bassols Ribera M.
37%63%

Bassols Ribera M. favoured, but within the range where form on the day decides.

Umpiry ScoreMatchup strength, 0–10 · not a probability
Costoulas S.5.5/10
Slight disadvantage
Bassols Ribera M.6.2/10
Even match
Why
Surface+92 Clay Elo edgeSupports Bassols Ribera M.
Overall ratingOverall Elo 1610Supports Bassols Ribera M.
Recent runLost last 3Informative
Surface switchHard → ClayAgainst the prediction · Costoulas S.
Head-to-headNo prior meetingsBoth players
ELO1 654
Clay ELO1 584
Last 103–7
Age21
EarningsCareer $378K2026 $165K
ELO1 760
Clay ELO1 674
Last 106–4
Age26
EarningsCareer $1.1M2026 $335K

Sofia Costoulas faces Marina Bassols Ribera in the Cali Open - Cali round of 32 on clay. Marina Bassols Ribera holds the paper edge — ranked #125, a roughly 90-point clay Elo advantage.

Key context

Common opponents

1 shared · last 12 months

Costoulas S. and Bassols Ribera M. faced 1 of the same opponent in the last 12 months. Costoulas S. went 0–1 (0%) against them, Bassols Ribera M. 1–0 (100%).

0–10%Costoulas S. · better vs 0Record vs common opponents1–0100%Bassols Ribera M. · better vs 1
Vs common opponents · derived from scorelines
1–2Sets2–0
13–15Games12–5
0–1Deciding sets0–0

Only 1 common opponent — too few for any conclusion. Shown without assessment.

Head-to-head

They have not met before.

Evidence

Costoulas S.Bassols Ribera M.
FormLast 10 matches each · 2026
Win–loss3–76–4 (ahead)
Season win rate51% (31–30)58% (33–24) (ahead)
RatingUmpiry ELO
Overall ELO16541760 (ahead)
Clay-court ELO15841674 (ahead)
Serve vs returnLast 59 vs 56 matches
1st-serve points won68% (ahead)60%
Return points won45%47% (ahead)
Aces / match3.2 (ahead)0.6
ClutchLast 59 vs 56 matches
Break points saved52%56% (ahead)

Draw

Odds

Conditions

11:00 local
SurfaceClay
Forecast28°C · Drizzle
Wind4 km/h
Humidity73%

Freshness

Last 7 & 14 days
Costoulas S.Bassols Ribera M.
6 — fresherDays since last match3
1 — fresherMatches · 7 days3
19 — fresherGames · 7 days61
1 — fresherMatches · 14 days3
19 — fresherGames · 14 days61
Green marks the fresher player.

Cite this

Umpiry, "Sofia Costoulas vs Marina Bassols Ribera — Cali Open - Cali Round of 32", https://umpiry.com/match/2026-11-03/costoulas-vs-ribera-cali-open-cali-r32?utm_source=cite (as of 3 November 2026).