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BEL Sofia Costoulas

WTA #150
Elo#2801716
Glicko-2#2471751 RD ±63.9
21 yrs · right-handed · strongest on Clay · 218–146 career · peak Elo 1835 · last 2026-09-08

Sofia Costoulas is WTA No. 150, ranked #280 by Elo (1716) and #247 by Glicko-2 (1751). Career record 218–146.

Elo — overall & by surface

Overall
1716#280
Hard
1744#210
Clay
1844#257
Grass
1721#604
Form · 52w
1903#402
Form is a separate 52-week race in which every player restarts level — it tracks the last year’s gains, not overall level, so it is not comparable to the ratings above.

Glicko-2 — rating & deviation

Overall
1751#247
Hard
1818#188
Clay
1830#273
Grass
1563#713
Rating deviation ±63.9 — lower means more certain.

Rankings · Elo / Glicko

Official (WTA)#150
Overall#280 / #247
Form · 52w race#402 / #337
Hard#210 / #188
Clay#257 / #273
Grass#604 / #713

Career

Peak Elo1835 2025-06-13
Overall W–L218–146 60%
Hard156–88 64%
Clay58–53 52%
Grass1–3 25%

Honours · career

Career high WTA#134

Pressure · career

Deciding set3–4 43%
Tie-breaks0–4 0%
Deciding-set tie-breaks0–1 0%
After winning set 19–2 82%
After losing set 11–9 10%
Retirements and walkovers are excluded — a deciding set that ended because someone stopped playing is not a deciding set won.

Serve & return · career rates

1st serve in60.8%
Won behind 1st65.8%
Won behind 2nd45.6%
Break points saved54.3%
Break points converted42.2%
Return points won44.1%
Aces per match3.4
Double faults per match2.7
From 21 tour-level matches with point-by-point statistics on file. Rates rather than totals, because the statistics table does not cover every match played.

Head-to-head · career meetings

Pairs who could meet soon — every scheduled match, and every live-draw opponent with a history. All of them in the head-to-head index.

Recent results

LHard v USA Hina InoueW50 Guiyang · 2026-09-083-6 7-6 3-6
LHard v CHN Zhuoxuan BaiW75 Tianjin · 2026-09-046-1 1-6 3-6
WHard v RUS Kristiana SidorovaW75 Tianjin · 2026-09-036-1 6-2
WHard v CHN Shiyu YeW75 Tianjin · 2026-09-027-6 6-3
LHard v USA Elvina KalievaU.S. Open · 2026-08-266-3 3-6 4-6
WHard v ITA Jennifer RuggeriU.S. Open · 2026-08-257-5 6-4
LHard v POR Matilde JorgeW35 Vigo · 2026-08-146-7 0-6
WHard v Sofia Camila RojasW35 Vigo · 2026-08-136-3 6-3
WHard v Eva Alvarez SandeW35 Vigo · 2026-08-126-1 6-1
LHard v CZE Gabriela Andrea KnutsonPolish Open · 2026-08-042-6 4-6
LHard v AUS Maddison InglisOdlum Brown VanOpen · 2026-07-293-6 3-6
WHard v AUS Lizette CabreraOdlum Brown VanOpen · 2026-07-296-2 6-2

Upcoming

Hard Singapore · R1 · MON 09/21 10:00pm ET
vs T. Prozorova
33%
Elo win