WTA United CupHard3 Jan 2026 · 14:10
C. Gauff
#3 · USA
VS
S. Sierra
#78 · Argentina
GAUFF
1.09
·
SIERRA
9.3

Odds

Market
Gauff
Sierra
Winner
1.09
9.3

Player analysis

C. Gauff comes in with a 4–1 record over recent matches, with wins against quality opposition in the top 29 on average. Point margins have been modest — DS averaging +6.0. Wins have been functional rather than dominant. The serve has been a concern — averaging only 5.6/10, leaving C. Gauff vulnerable on second serve and facing frequent return pressure.

DS 5.96Trend up

S. Sierra comes into this match in difficult form — 1 wins from the last 5. Point statistics tell a concerning story — average DS of -16.0, meaning S. Sierra has been on the wrong side of most exchanges over five matches. The serve has been a concern — averaging only 5.0/10, leaving S. Sierra vulnerable on second serve and facing frequent return pressure.

DS -16.04Trend mixed

Recent form

Hard court stats

Gauff
Stat
Sierra
70.4%
Win rate
62.3%
176–74
W–L
43–26

Avg stats — last 5

1st serve %60%
1st serve won70%
2nd serve won40%
BP converted50%
BP saved60%
Aces4
Double faults6
1st serve %60%
1st serve won60%
2nd serve won40%
BP converted50%
BP saved50%
Aces3
Double faults4