WTA
Klara Kosan
Ranking—
Player details
- Plays
- Right-handed
Recent form
Last 20 recorded matches · up to 20 · newest first
8 Wins 12 Losses
SWOT analysis
Open a finding to see its evidence and sample.
Threats
Thin sample
Only 14 matches with serve and return statistics: the profile is not stable yet.
14 matches
Untested surface
Barely any matches on clay and grass: any forecast there leans on his overall level, not on direct evidence.
fewer than 5 matches
Basis and methodology
Computed from opponent-adjusted serve and return over 14 matches, 3 tiebreaks, 6 deciding sets, Elo by surface.
Surface overview
All recorded results, not necessarily a complete career. This selector changes only the surface overview.
Hard
44.4%16 Wins · 20 Losses · 36 recorded matches
Clay
0%0 Wins · 1 Losses · 1 recorded matches
Track = recorded win percentage, on a 0–100% scale.
Elo ratings
Current ratings from recorded history. Overall and surface ratings use different scales; do not rank them against each other.
- Overall
- 1,450
- 37 recorded matches
- Hard
- 1,450
- 36 recorded matches
- Clay
- 1,459
- 1 recorded matches
- Grass
- —
- 0 recorded matches
Serve & return
Last 12 months · 5 recorded matches
Raw player aggregates, not circuit averages or performance ratings. Samples vary by metric; the match count is not the denominator for every percentage. Tracks run from 0 to 100%.
- Aces per sampled match
- 0.4
- Double faults per sampled match
- 5
- All points won
- 46%
Serve
5 recorded matches
- First serves in
- 58%
- First-serve points won
- 54%
- Second-serve points won
- 39%
- Break points saved
- 49%
- Service points won
- 48%
Return
5 recorded matches
- First-serve return points won
- 38%
- Second-serve return points won
- 56%
- Break points converted
- 44%
- Return points won
- 44%
Return values are derived from opponents’ serve data.
Pending validation: hold/break rates, shot averages and ratios, and clutch/deciding-set metrics are omitted.
Match length
How this player’s matches have finished, best of three, last five years.
21.5Average gamesReference mean: 21.4
19MedianReference median: 20
36Matches counted
Explore all games lines
Reference: 159,624 completed best-of-three matches in our database, ATP + WTA combined, all levels and surfaces, last five years. Retirements and walkovers excluded; not a circuit average.
| Line | Over | Reference | Difference |
|---|---|---|---|
| 16.5 | 86.1% | 77.4% | +8.7 |
| 18.5 | 52.8% | 59.6% |
Match activity
Latest 37 loaded matches · up to 50 · newest first
Loaded dates: 1 Jan 2024 – 9 Mar 2026. Filters apply only to these matches.
37 of 37 loaded matches · 16 wins · 21 losses
- Loss9 Mar 2026
W15 Victoriaville
Hard · R16
Winner listed first
Dasha IvanovaKlara KosanRecorded score (winner first): 3-6 6-3 6-3
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 1/9
- Break points faced
- 9
- First-serve points won
- 49%
- Win9 Mar 2026
W15 Victoriaville
Hard · R32
Winner listed first
Klara KosanAthina SchlepphorstRecorded score (winner first): 6-2 6-4
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 6/8
- Break points faced
- 8
- First-serve points won
- 69%
- Loss2 Mar 2026
W15 Trois-Rivieres
Hard · R32
Winner listed first
Dasha IvanovaKlara KosanRecorded score (winner first): 6-3 6-0
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 4/11
- Break points faced
- 11
- First-serve points won
- 38%
- Loss6 Oct 2025
W35 Redding CA
Hard · R16
Winner listed first
Madison SiegKlara KosanRecorded score (winner first): 6-1 6-0
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 9/15
- Break points faced
- 15
- First-serve points won
- 55%
- Win6 Oct 2025
W35 Redding CA
Hard · R32
Winner listed first
Klara KosanVictoria AllenRecorded score (winner first): 4-1 RET
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 2/2
- Break points faced
- 2
- First-serve points won
- 73%
- Loss30 Jun 2025
W15 Los Angeles CA
Hard · R16
Winner listed first
Kylie CollinsKlara KosanRecorded score (winner first): 6-2 6-3
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 1/6
- Break points faced
- 6
- First-serve points won
- 43%
- Win30 Jun 2025
W15 Los Angeles CA
Hard · R32
Winner listed first
Klara KosanCamille KissRecorded score (winner first): 6-3 6-1
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 2/4
- Break points faced
- 4
- First-serve points won
- 55%
- Loss23 Jun 2025
W15 Lakewood CA
Hard · R32
Winner listed first
Alanis HamiltonKlara KosanRecorded score (winner first): 2-6 6-3 6-4
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 3/10
- Break points faced
- 10
- First-serve points won
- 56%
- Win16 Jun 2025
W15 Rancho Santa Fe CA
Hard · R16
Winner listed first
Klara KosanLily FaircloughRecorded score (winner first): 7-6(4) 6-3
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 3/6
- Break points faced
- 6
- First-serve points won
- 63%
- Win16 Jun 2025
W15 Rancho Santa Fe CA
Hard · R32
Winner listed first
Klara KosanMio MushikaRecorded score (winner first): 6-2 7-5
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 3
- Break points saved
- 1/3
- Break points faced
- 3
- First-serve points won
- 72%
- Loss16 Jun 2025
W15 Rancho Santa Fe CA
Hard · QF
Winner listed first
Alyssa AhnKlara KosanRecorded score (winner first): 6-3 4-6 6-2
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 1/8
- Break points faced
- 8
- First-serve points won
- 51%
- Loss9 Jun 2025
W15 San Diego CA
Hard · R32
Winner listed first
Alyssa AhnKlara KosanRecorded score (winner first): 6-1 7-5
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 5/10
- Break points faced
- 10
- First-serve points won
- 46%
- Loss28 Apr 2025
W35 Nottingham
Hard · R32
Winner listed first
Marie WeckerleKlara KosanRecorded score (winner first): 1-6 6-0 6-3
View match - Loss10 Mar 2025
W15 Montreal
Hard · R32
Winner listed first
Sara DaavettilaKlara KosanRecorded score (winner first): 6-3 6-2
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 1
- Break points saved
- 7/15
- Break points faced
- 15
- First-serve points won
- 45%
- Loss3 Mar 2025
W15 Trois-Rivieres
Hard · R16
Winner listed first
Emily AppletonKlara KosanRecorded score (winner first): 6-3 6-3
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 0
- Break points saved
- 5/8
- Break points faced
- 8
- First-serve points won
- 61%
- Win3 Mar 2025
W15 Trois-Rivieres
Hard · R32
Winner listed first
Klara KosanAllie BittnerRecorded score (winner first): 3-6 7-6(3) 6-4
View matchAvailable match statistics
Klara Kosan · this match only · available fields
- Aces
- 2
- Break points saved
- 8/15
- Break points faced
- 15
- First-serve points won
- 56%
- Loss4 Nov 2024
W15 Lincoln
Hard · Q2
Winner listed first
Camille KissKlara KosanRecorded score (winner first): 6-2 6-3
View match - Win4 Nov 2024
W15 Lincoln
Hard · Q1
Winner listed first
Klara KosanSana GarakaniRecorded score (winner first): 6-1 6-4
View match - Win30 Sep 2024
W15 Trnava
Hard · Q1
Winner listed first
Klara KosanViktoria LackovaRecorded score (winner first): 6-2 6-3
View match - Loss30 Sep 2024
W15 Trnava
Hard · Q2
Winner listed first
Karolina VlckovaKlara KosanRecorded score (winner first): 6-4 6-3
View match - Loss23 Sep 2024
W15 Trnava
Hard · Q1
Winner listed first
Mia ChudejovaKlara KosanRecorded score (winner first): 6-7(5) 6-1 10-5
View match - Loss12 Aug 2024
W15 Huntsville AL
Clay · R32
Winner listed first
Emily Sartz LundeKlara KosanRecorded score (winner first): 6-4 6-2
View match - Loss8 Jul 2024
W15 Lakewood CA
Hard · Q1
Winner listed first
Kayla ChungKlara KosanRecorded score (winner first): 6-0 6-2
View match - Win24 Jun 2024
W15 Los Angeles CA
Hard · R32
Winner listed first
Klara KosanTenika McgiffinRecorded score (winner first): 1-6 6-4 7-5
View match - Loss24 Jun 2024
W15 Los Angeles CA
Hard · R16
Winner listed first
Sahaja YamalapalliKlara KosanRecorded score (winner first): 6-2 6-4
View match - Win24 Jun 2024
W15 Los Angeles CA
Hard · Q1
Winner listed first
Klara KosanMidori Castillo MezaRecorded score (winner first): 6-3 6-4
View match - Win24 Jun 2024
W15 Los Angeles CA
Hard · Q2
Winner listed first
Klara KosanAlexis NguyenRecorded score (winner first): 6-1 6-7(1) 10-5
View match - Loss17 Jun 2024
W15 Rancho Santa Fe CA
Hard · Q2
Winner listed first
Sophie LuescherKlara KosanRecorded score (winner first): 6-4 6-2
View match - Win17 Jun 2024
W15 Rancho Santa Fe CA
Hard · Q1
Winner listed first
Klara KosanAndrea QuirozRecorded score (winner first): 2-6 6-0 10-8
View match - Win10 Jun 2024
W15 San Diego CA
Hard · Q2
Winner listed first
Klara KosanAlexis NguyenRecorded score (winner first): 6-4 6-1
View match - Loss10 Jun 2024
W15 San Diego CA
Hard · R32
Winner listed first
Carolyn CampanaKlara KosanRecorded score (winner first): 7-5 6-1
View match - Win10 Jun 2024
W15 San Diego CA
Hard · Q1
Winner listed first
Klara KosanKayla ChungRecorded score (winner first): 6-1 7-5
View match - Win3 Jun 2024
W15 San Diego CA
Hard · Q2
Winner listed first
Klara KosanSalma EwingRecorded score (winner first): 5-7 6-3 10-6
View match - Win3 Jun 2024
W15 San Diego CA
Hard · Q1
Winner listed first
Klara KosanTaylor GoetzRecorded score (winner first): 6-2 6-4
View match - Loss3 Jun 2024
W15 San Diego CA
Hard · R32
Winner listed first
Lisa ZaarKlara KosanRecorded score (winner first): 6-1 6-0
View match - Loss27 May 2024
W15 San Diego CA
Hard · Q1
Winner listed first
Isabella ChhivKlara KosanRecorded score (winner first): 7-6(4) 6-2
View match - Loss1 Jan 2024
W35 Arcadia CA
Hard · Q1
Winner listed first
Megan MccrayKlara KosanRecorded score (winner first): 6-2 2-6 10-5
View match