Janice Tjen vs Maja ChwalinskaUs Open Qualifying Round 2

Us Open · CHALLENGER · Qualifying Round 2
#42WTA
1658ELO
1684Hard ELO
$630kYTD
$984kCAREER
24 yrs · 171 cm · Right-handed
Last 10 · pre-match
LWLLLLWLWL
0 — 0
Sets
Monday, 25 August 2025
hard
#21WTA
1833ELO
1736Hard ELO
$1.7MYTD
$2.5MCAREER
24 yrs · 164 cm · Left-handed
Last 10 · pre-match
LLWWWWWWWW
Tjen J.
7-5 7-5
Chwalinska M.
Tjen J.
772
Chwalinska M.
55

Janice Tjen defeated Maja Chwalinska 7-5 7-5 in the Us Open qualifying round 2 on hard. The upset overturned the form book — Maja Chwalinska came in ranked #21.

Key context

Head to head

No previous meetings on record.

Serve vs return

This season
Tjen J.serving59% hold

wins 54% of points on serve vs Chwalinska M.

Chwalinska M.serving54% hold

wins 52% of points on serve vs Tjen J.

Baseline battle — serve is shaky, expect plenty of breaks

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

Serve & return on hard

Tjen J.Chwalinska M.
53
Serve
13
Return

Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About

Statistics

This season
1st serve in·Slight edge
62%
70%
1st serve points won·Slight edge
69%
61%
2nd serve points won·Even
51%
51%
Service points won·Even
62%
58%
Return points won·Even
46%
48%
Break points saved·Even
56%
54%
Aces / match·Clear edge
3.4
1.4
Double faults / match·Slight edge
2.7
2.1

Averages over each player's completed matches in the selected window (97 vs 76). ATP, WTA & Challenger.

Clutch

Under pressure
Clutch Rating·Clear edge
78
65
Break points saved·Dominant
84
50
Break points won·Clear edge
85
98
Deciding sets·Slight edge
75
80
Tiebreaks·
99

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

Umpiry Score

Pre-match
6.9
Slight advantageUmpiry Score
4.8
Heavy underdogUmpiry Score
  • Extended break: 42 days (−0.7)
Form & Matchup
5.6Hard Elo 1684
Surface ELO
4.4+51 Hard Elo edge
5.3Overall Elo 1658
ELO gap
4.7Overall Elo 1833
5.0No prior meetings
H2H
5.0
8.0
Surface form
5.7
Win streak
0.0
Fatigue & Travel
Surface transition
6.0
Context
5.0
Defending pts
6.0

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.

Freshness

Recent load
Freshness·Even
94
97

Tjen J.: 11 days rest · 2 matches (14d) · Chwalinska M.: 13 days rest · 1 match (14d). Higher means fresher. About

Conditions

Court speed
Fastbig serves, short points
SlowFast

Draw — qualifying

Q1
Jones F.
Hruncakova V.
6-36-4
Gorgodze E.
Watson H.
3-66-36-4
Hartono A.
Sanchez A.
2-66-46-3
Gadecki O.
Koevermans A.
3-66-36-1
Valentova T.
Barthel M.
6-26-4
Burrage J.
Tig P.
6-46-0
Rus A.
Martinez Cirez C.
6-46-2
Ito A.
Friedsam A.
6-45-76-3
Chwalinska M.
Pedone G.
6-26-0
Tjen J.
Lepchenko V.
6-36-1
Maristany Zuleta De Reales G.
Rakotomanga Rajaonah T.
6-27-64
Galfi D.
Urhobo A.
6-26-4
Udvardy P.
Ormaechea P.
6-46-1
Tomova V.
Burillo Escorihuela I.
6-36-0
Niemeier J.
Saville D.
6-06-2
Hon P.
Brancaccio N.
7-56-4
Gracheva V.
Brengle M.
7-56-3
Wurth T.
Rodionova A.
6-17-5
Pridankina E.
Palicova B.
5-76-36-4
Shibahara E.
Day K.
7-56-1
Volynets K.
Costoulas S.
6-36-4
Honer A.
Osuigwe W.
6-26-3
Andrianjafitrimo T.
Hercog P.
5-76-26-4
Aiava D.
Bejlek S.
6-44-66-4
Mikulskyte J.
Okamura K.
6-37-5
Zhang S.
Stoiana M.
7-56-3
Vidmanova D.
Iyengar M.
6-16-2
Wei S.
Cengiz B.
6-26-2
Romero Gormaz L.
Naef C.
6-46-4
Jones E.
Pera B.
6-14-66-2
Pigossi L.
Zidansek T.
5-77-626-3
Sharma A.
Radivojevic L.
7-56-4
Jimenez Kasintseva V.
Nguyen A.
6-27-5
Marcinko P.
Gao X.
6-26-1
Charaeva A.
Ekstrand M.
6-36-4
Martic P.
Fruhvirtova L.
6-36-0
Semenistaja D.
Lazaro Garcia A.
2-66-27-5
Cabrera L.
Oliynykova O.
6-26-4
Ponchet J.
Mandlik E.
6-46-2
Dart H.
Todoni A.
7-56-737-66
Shymanovich I.
Kraus S.
6-32-67-5
Salkova D.
Grabher J.
7-53-66-2
Hontama M.
Penickova K.
6-04-67-64
Marino R.
Tararudee L.
6-32-67-5
Zhao C.
Carle M.
7-686-2
Brace C.
Hibino N.
2-66-36-3
Erjavec V.
Timofeeva M.
6-36-1
Vickery S.
Soboleva A.
7-57-5
Stefanini L.
Diatchenko V.
7-666-2
Inoue H.
Davis L.
6-16-2
Waltert S.
Snigur D.
4-66-16-2
Prozorova T.
Trevisan M.
6-36-3
Crawley F.
Chirico L.
6-26-3
Leonard M.
Nahimana S.
6-36-4
Vandewinkel H.
Stakusic M.
6-36-2
Fett J.
Garland J.
6-26-4
Seidel E.
Von Deichmann K.
6-36-2
Wang X.
Branstine C.
3-66-36-3
Klimovicova L.
Korneeva A.
7-646-726-4
Akli A.
Vedder E.
7-56-2
Selekhmeteva O.
Riera J.
2-66-06-3
Dmitruk K.
Juvan K.
7-56-4
Liu C.
Kawa K.
6-16-3
Inglis M.
Hunter S.
6-36-4