String Tension Logo
US flag

Madison Keys

Rank: 23Elo: 1889Age: 31

1 - 0

Head-to-Head

Kimberly Birrell

AU flag
Rank: 41Elo: 1553Age: 28

Three rackets logoMatch Prediction

US flag
Madison
Keys

Overall: 1889

Hard: 1620

VS
AU flag
Kimberly
Birrell

Overall: 1553

Hard: 1620

String Tension Elo Prediction:

Keys 72.1%

-258

Match History (1 Match)

Showing 1 to 1 of 1 matches
Fed Cup WG R1: AUS vs USAFeb 9, 2019
Round Robin · Hard
United StatesM. Keys
66
AustraliaK. Birrell
22

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Detailed Stats Comparison

Madison Keys
vs
Kimberly Birrell
31–15
67% win
18–19
49% win

Serve

4.2
Aces/Match
1.7
3.5
Double Faults/Match
6.0
64%
1st Serve %
63%
72%
1st Serve Won %
62%
48%
2nd Serve Won %
43%

Return

44%
Return Points Won %
43%
3.7/8.2 (45%)
Break Point Offense
4.1/8.2 (50%)
3.9/6.3 (63%)
Break Point Defense
4.2/8.3 (50%)

Season stats are from 2026.