UMPIRY
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S. Johnson vs Demi Tran — W50 Huamantla Round of 32

W50 HuamantlaR32HardTue 3 Nov · 10:00
S. Johnson(7)WTA #363 · GBR67%
VSClear favourite · Johnson S.
Demi TranWTA #641 · NED33%
Win probabilityWho is more likely to winClear favourite · Johnson S.
67%33%

Clear edge for Johnson S. 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
Johnson S.5.5/10
Slight disadvantageBased on 5/6 signal groups5/6
Tran D.5.9/10
Even matchBased on 5/6 signal groups5/6
Why
Surface form3 of last 8 on hardInformative
Recent runLost last 3Informative
Long matches1 three-setter in 14 daysAgainst the prediction · Tran D.
Head-to-headNo prior meetingsBoth players
This eventDidn't play here last yearBoth players
ELO1 568
Hard ELO1 546
Last 104–6
Age22
ELO1 494
Hard ELO1 455
Last 104–6
Age25

S. Johnson faces Demi Tran in the W50 Huamantla round of 32 on hard. S. Johnson holds the paper edge — ranked #363. Recent hard form is closely matched.

Key context

  • Fatigue load: Both played one three-setter in the past fortnight — neither arrives fresh.
  • Surface form: Both 4 of 9 on hard recently — court-specific quality nearly identical despite the ranking gap.

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

Johnson S.Tran D.
FormLast 10 matches each · 2026
Win–loss4–64–6
Season win rate55% (18–15) (ahead)39% (16–25)
RatingUmpiry ELO
Overall ELO1568 (ahead)1494
Hard-court ELO1546 (ahead)1455
Serve vs returnLast 28 vs 40 matches
1st-serve points won60% (ahead)56%
Return points won49% (ahead)46%
Aces / match1.3 (ahead)0.3
ClutchLast 28 vs 40 matches
Break points saved56% (ahead)49%

Draw

Odds

Conditions

10:00 local
SurfaceHard
Forecast20°C · Clear
Wind3 km/h
Humidity31%

Freshness

Last 7 & 14 days
Johnson S.Tran D.
7Days since last match8 — fresher
1Matches · 7 days0 — fresher
28Games · 7 days0 — fresher
1Matches · 14 days1
28Games · 14 days16 — fresher
Green marks the fresher player.

Cite this

Umpiry, "S. Johnson vs Demi Tran — W50 Huamantla Round of 32", https://umpiry.com/match/2026-11-03/johnson-vs-tran-w50-huamantla-r32?utm_source=cite (as of 3 November 2026).