Sierra S.

starts, all surfaces, 2024 to 2026

No. 86

867 pts, as of Aug 4, 2026

01/Record by surface

each with its own count; nothing here is blended

Hard

5-12

17 starts, 2024 to 2026. 11 of 37 completed sets won

Clay

7-5

12 starts, 1 ended by retirement, 2024 to 2026. 15 of 26 completed sets won

Grass

5-4

9 starts, 2024 to 2026. 12 of 24 completed sets won

38 starts on all surfaces, 1 ended by retirement and kept. A count, not a record: the three records above are never added.

02/Round reached

21 tournaments entered

Stage	Entries ending here	Record at this round
Champion	0 of 21
Quarterfinal	1 of 21	0-1 in 1
4th Round	2 of 21	0-2 in 2
3rd Round	2 of 21	2-2 in 4
2nd Round	5 of 21	5-5 in 10
1st Round	11 of 21	10-11 in 21

An entry is one tournament in one season; its stage is the last round the draw shows her in, and a champion’s is the trophy. The record at a round counts matches started at that round, so a walkover moves her on without a line here.

03/By level

4 levels

Level	Starts	Hard	Clay	Grass
WTA1000	13	1-5	5-2	none
Grand Slam	13	0-3	2-2	4-2
WTA250	11	4-4	none	1-2
WTA500	1	none	0-1	none

04/By season

2024 to 2026

Season	Starts	Hard	Clay	Grass	Rank, newest row
2026	25	2-7	7-4	2-3	86
2025	12	3-4	0-1	3-1	82
2024	1	0-1	none	none	158

Each season is the same count over that season’s matches alone, each surface with its own starts. A season with a start on no grass court says none rather than 0-0. December openers file to the season they open. Finals counts the finals that crowned a champion, a walkover final among them, so Titles is a subset of it and a final lost shows in the gap; the surface columns count starts, which a walkover is not.

05/Head to head

34 opponents faced

Opponent	Meetings	Record	Hard	Clay	Grass	Span
McNally C.	2	1-1	1-0	none	0-1	2026	Every meeting
Cirstea S.	2	0-2	0-1	0-1	none	2025 to 2026	Every meeting
Gauff C.	2	0-2	none	0-1	0-1	2026	Every meeting
Pliskova Ka.	2	0-2	0-1	0-1	none	2026	Every meeting
Boisson L.	1	1-0	none	none	1-0	2026	Every meeting
Bondar A.	1	1-0	none	none	1-0	2026	Every meeting
Boulter K.	1	1-0	none	none	1-0	2025	Every meeting
Bucsa C.	1	1-0	none	none	1-0	2025	Every meeting
Frech M.	1	1-0	none	1-0	none	2026	Every meeting
Gadecki O.	1	1-0	none	none	1-0	2025	Every meeting
Hartono A.	1	1-0	1-0	none	none	2025	Every meeting
Kalinina A.	1	1-0	none	1-0	none	2026	Every meeting
Kartal S.	1	1-0	1-0	none	none	2025	Every meeting
Korpatsch T.	1	1-0	none	1-0	none	2026	Every meeting
Leme Da Silva N.V.	1	1-0	1-0	none	none	2025	Every meeting
Paolini J.	1	1-0	none	1-0	none	2026	Every meeting
Raducanu E.	1	1-0	none	1-0	none	2026	Every meeting
Sonmez Z.	1	1-0	none	1-0	none	2026	Every meeting
Stearns P.	1	1-0	1-0	none	none	2026	Every meeting
Yastremska D.	1	1-0	none	1-0	none	2026	Every meeting
Andreeva M.	1	0-1	0-1	none	none	2026	Every meeting
Jacquemot E.	1	0-1	0-1	none	none	2025	Every meeting
Jones F.	1	0-1	0-1	none	none	2025	Every meeting
Jovic I.	1	0-1	0-1	none	none	2025	Every meeting
Maria T.	1	0-1	0-1	none	none	2024	Every meeting
Prozorova T.	1	0-1	0-1	none	none	2026	Every meeting
Putintseva Y.	1	0-1	none	0-1	none	2025	Every meeting
Rakhimova K.	1	0-1	0-1	none	none	2026	Every meeting
Ruzic A.	1	0-1	0-1	none	none	2026	Every meeting
Siegemund L.	1	0-1	none	none	0-1	2025	Every meeting
Stephens S.	1	0-1	0-1	none	none	2026	Every meeting
Uchijima M.	1	0-1	0-1	none	none	2026	Every meeting
Urhobo A.	1	0-1	none	0-1	none	2026	Every meeting
Zheng Q.	1	0-1	none	none	0-1	2026	Every meeting

A record, never a share: the most-met opponent is McNally C., 1-1 in 2 meetings. A percentage of meetings is a win probability wearing a hat, and this section prints none. Meetings are matches started; a walkover between the two is noted and counted in neither column.

06/Match log

38 rows, newest first, the score reads her games first

Opponent	Score	Date	Tournament	Surface	Round	Result	Her rank
Stephens S.No. 307 that day	3-6, 4-6	Aug 4, 2026	Canadian OpenWTA1000	hard	1st round	L	86
Prozorova T.No. 181 that day	1-6, 7-5, 2-6	Jul 28, 2026	Memphis ClassicWTA250	hard	1st round	L	86
Gauff C.No. 7 that day	3-6, 6-3, 6-7	Jul 1, 2026	WimbledonGrand Slam	grass	2nd round	L	56
Bondar A.No. 74 that day	6-3, 5-7, 7-5	Jun 29, 2026	WimbledonGrand Slam	grass	1st round	W	56
Zheng Q.No. 153 that day	5-7, 6-4, 4-6	Jun 22, 2026	Bad Homburg OpenWTA250	grass	1st round	L	56
McNally C.No. 59 that day	4-6, 3-6	Jun 12, 2026	Rosmalen Grass Court ChampionshipsWTA250	grass	2nd round	L	56
Boisson L.No. 155 that day	6-4, 5-7, 6-3	Jun 10, 2026	Rosmalen Grass Court ChampionshipsWTA250	grass	1st round	W	56
Cirstea S.No. 18 that day	0-6, 0-6	May 29, 2026	French OpenGrand Slam	clay	3rd round	L	68
Paolini J.No. 13 that day	3-6, 6-4, 6-3	May 27, 2026	French OpenGrand Slam	clay	2nd round	W	68
Raducanu E.No. 39 that day	6-0, 7-6	May 24, 2026	French OpenGrand Slam	clay	1st round	W	68
Gauff C.No. 4 that day	7-5, 0-6, 4-6	May 9, 2026	Internazionali BNL d'ItaliaWTA1000	clay	3rd round	L	72
Kalinina A.No. 93 that day	6-2, 6-3	May 7, 2026	Internazionali BNL d'ItaliaWTA1000	clay	2nd round	W	72
Korpatsch T.No. 87 that day	6-3, 6-1	May 6, 2026	Internazionali BNL d'ItaliaWTA1000	clay	1st round	W	72
Pliskova Ka.No. 197 that day	4-6, 3-6	Apr 27, 2026	Mutua Madrid OpenWTA1000	clay	4th round	L	88
Sonmez Z.No. 67 that day	0-6, 6-2, 6-3	Apr 26, 2026	Mutua Madrid OpenWTA1000	clay	3rd round	W	88
Frech M.No. 38 that day	6-2, 6-4	Apr 24, 2026	Mutua Madrid OpenWTA1000	clay	2nd round	W	88
Yastremska D.No. 49 that day	7-6, 7-6	Apr 22, 2026	Mutua Madrid OpenWTA1000	clay	1st round	W	88
Urhobo A.No. 273 that day	5-7, 0-3	Mar 30, 2026	Charleston OpenWTA500	clay	1st round	Lret.	65
Rakhimova K.No. 82 that day	1-6, 3-6	Mar 19, 2026	Miami OpenWTA1000	hard	1st round	L	63
Andreeva M.No. 8 that day	0-6, 0-6	Mar 7, 2026	BNP Paribas OpenWTA1000	hard	2nd round	L	65
Stearns P.No. 48 that day	7-5, 7-5	Mar 6, 2026	BNP Paribas OpenWTA1000	hard	1st round	W	65
Pliskova Ka.No. 418 that day	1-6, 2-6	Feb 8, 2026	Qatar OpenWTA1000	hard	1st round	L	62
Uchijima M.No. 88 that day	3-6, 1-6	Jan 19, 2026	Australian OpenGrand Slam	hard	1st round	L	63
Ruzic A.No. 71 that day	5-7, 4-6	Jan 14, 2026	Hobart InternationalWTA250	hard	2nd round	L	64
McNally C.No. 83 that day	1-6, 6-4, 6-1	Jan 12, 2026	Hobart InternationalWTA250	hard	1st round	W	64
Jones F.No. 85 that day	3-6, 4-6	Sep 12, 2025	SP OpenWTA250	hard	quarterfinal	L	82
Leme Da Silva N.V.No. 1,206 that day	6-0, 6-4	Sep 10, 2025	SP OpenWTA250	hard	2nd round	W	82
Hartono A.No. 189 that day	7-6, 6-3	Sep 8, 2025	SP OpenWTA250	hard	1st round	W	82
Cirstea S.No. 71 that day	5-7, 0-6	Aug 26, 2025	US OpenGrand Slam	hard	1st round	L	74
Jacquemot E.No. 98 that day	5-7, 6-7	Aug 21, 2025	Tennis in the LandWTA250	hard	2nd round	L	75
Kartal S.No. 51 that day	4-6, 6-4, 7-6	Aug 17, 2025	Tennis in the LandWTA250	hard	1st round	W	75
Jovic I.No. 88 that day	3-6, 6-7	Aug 9, 2025	Western & Southern Financial Group Women's OpenWTA1000	hard	1st round	L	72
Siegemund L.No. 104 that day	3-6, 2-6	Jul 6, 2025	WimbledonGrand Slam	grass	4th round	L	101
Bucsa C.No. 102 that day	7-5, 1-6, 6-1	Jul 4, 2025	WimbledonGrand Slam	grass	3rd round	W	101
Boulter K.No. 43 that day	6-7, 6-2, 6-1	Jul 2, 2025	WimbledonGrand Slam	grass	2nd round	W	101
Gadecki O.No. 103 that day	6-2, 7-6	Jun 30, 2025	WimbledonGrand Slam	grass	1st round	W	101
Putintseva Y.No. 31 that day	6-7, 2-6	May 27, 2025	French OpenGrand Slam	clay	1st round	L	110
Maria T.No. 99 that day	2-6, 3-6	Aug 26, 2024	US OpenGrand Slam	hard	1st round	L	158

Main-draw singles on the tour, 2024 to 2026, counted from the match rows. A match ended by retirement keeps the sets that were completed and is marked; a walkover is listed with no score and enters no count. Ranks are the tour’s ranking on the day of the match. No serve statistic appears on this page: the one archive that carries them is licensed for non-commercial use only. The WTA record runs through Aug 30, 2026.