Andres Santamarta Roig vs N. Johnston

UMPIRY

M25 Las VegasR16HardThu 29 Oct · 10:30

Andres Santamarta RoigATP #775 · ESP68%

VSClear favourite · Santamarta Roig A.

N. JohnstonUSA32%

Win probabilityWho is more likely to winClear favourite · Santamarta Roig A.

68%32%

Clear edge for Santamarta Roig A. across form, surface and matchup. Upsets at this level happen in about 1 in 3 such matches.

Umpiry ScoreMatchup strength, 0–10 · not a probability

Santamarta Roig A.5.5/10

Slight disadvantageBased on 5/6 signal groups5/6

Johnston N.4.7/10

Heavy underdogBased on 5/6 signal groups5/6

Why

Recent runLost last 3Informative

CountryWon 62% in USA (24)Informative

Head-to-headNo prior meetingsBoth players

This eventDidn't play here last yearBoth players

ELO1 589

Hard ELO1 502

Last 105–5

ELO1 530

Hard ELO1 511

Last 106–4

Andres Santamarta Roig faces N. Johnston in the M25 Las Vegas round of 16 on hard.

Key context

Form trend: Form trajectories diverge: N. Johnston rising, Andres Santamarta Roig cooling.
Last match: N. Johnston recovered from a 0–6 opening set to beat Oliver Okonkwo.
Last match: Andres Santamarta Roig dropped the opening set before beating Max Wiskandt 3–6 6–1 6–4.

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

Santamarta Roig A.Johnston N.

FormLast 10 matches each · 2026

Win–loss5–56–4

Season win rate45% (5–6)63% (5–3)

RatingUmpiry ELO

Overall ELO15891530

Hard-court ELO15021511

Draw

Odds

Conditions

10:30 local

SurfaceHard

Forecast20°C · Overcast

Wind8 km/h

Humidity31%

Cite this

Umpiry, "Andres Santamarta Roig vs N. Johnston — M25 Las Vegas Round of 16", https://umpiry.com/match/2026-10-29/johnston-vs-roig-m25-las-vegas-r16?utm_source=cite (as of 29 October 2026).