Zachary Svajda vs Daniel AltmaierUS Open Round of 128

US Open · ATP · Round of 128
#80ATP
1718ELO
1690Hard ELO
$631kYTD
$1.9MCAREER
23 yrs · 175 cm · Right-handed
Last 10
LLWLLWLWWL
Sets
Sunday, 30 August 2026 ·
hard
#57ATP
1734ELO
1652Hard ELO
$750kYTD
$5.6MCAREER
27 yrs · 188 cm · Right-handed
Last 10
LWLWLWLWLW
Svajda Z.
vs
Altmaier D.

Zachary Svajda faces Daniel Altmaier in the US Open round of 128 on hard. Daniel Altmaier holds the paper edge — ranked #57, leading the head-to-head 1–0, defending last year's round of 32.

Win Probability

Pre-match · updated 12:50 UTC
Svajda Z.72%
Altmaier D.28%
Toss-up
50–58%
Slight edge
58–67%
Clear favourite
67–80%
Strong favourite
80%+

Clear favourite · Svajda Z. clearly ahead, but no certainty

Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.

Key context

Common opponents

Last 12 months
9 common opponents · Svajda Z. 4–6 · Altmaier D. 5–7
Both lost · different surfaces (Hard × Grass)
Includes tour-level, 125s, qualifying and team events (⚑). Walkovers excluded. Describes past results in different contexts — not a prediction.

Umpiry Score

Pre-match
5.9
Even matchUmpiry Score
5.8
Slight disadvantageUmpiry Score
Form & Matchup
5.5+38 Hard Elo edge
Surface ELO
4.5Hard Elo 1652
4.8Overall Elo 1718
ELO gap
5.2Overall Elo 1734
5.0First meeting on hard
H2H
5.0First meeting on hard
4.25 of last 10 on hard
Surface form
3.43 of last 10 on hard
0.0Lost last 2
Win streak
0.0
Context
6.0Reached the R64 here last year
Defending pts
6.0Reached the R32 here last year

The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.

35 vs 36 matches

Statistics

This season
1st serve in·Slight edge
58%
63%
1st serve points won·Even
75%
71%
2nd serve points won·Slight edge
52%
46%
Service points won·Even
65%
62%
Return points won·Even
37%
36%
Break points saved·Slight edge
62%
57%
Aces / match·Slight edge
7.3
6.3
Double faults / match·Slight edge
2.4
2.8

Averages over each player's completed matches in the selected window (35 vs 36). ATP, WTA & Challenger.

Serve vs return

This season
Svajda Z.serving88% hold

wins 68% of points on serve vs Altmaier D.

Altmaier D.serving82% hold

wins 64% of points on serve vs Svajda Z.

Serve advantage — Svajda Z.

Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About

Clutch

Under pressure
Clutch Rating·Dominant
22
49
Break points saved·Slight edge
82
92
Break points won·Dominant
61
15
Deciding sets·Dominant
6
71
Tiebreaks·Dominant
12
68

Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About

Freshness

Recent load
Freshness·Clear edge
100
80

Svajda Z.: 15 days rest · Altmaier D.: 3 days rest · 2 matches, 45 games (7d). Higher means fresher. About

Conditions

Court speed
Medium-fastrewards aggression
SlowFast
Weather forecast
26°COvercast
Wind 12 km/hHumidity 79%

Head to head

01
DateTournamentRoundSurfaceWinnerScore
2023-02-06DallasR32hardDaniel Altmaier6-2 6-4

Draw