WTA

Model record

How often the model's favorite won, graded against final scores.

99–60 favorite straight-up · last 30 days
62.3% favorite win rate (159 graded)
4.5 games: average miss on the projected margin
4.8 games: average miss on the projected total

Day by day

6–3 Sep 29 7–7 Sep 30 10–3 Oct 1 10–5 Oct 2 9–3 Oct 3 7–5 Oct 4 3–0 Oct 5 3–1 Oct 6 2–1 Oct 7 1–1 Oct 8 0–2 Oct 9 8–8 Oct 10 2–6 Oct 11 5–2 Oct 12

favorite won · favorite lost

Calibration

When the model says 60%, does the favorite win 60% of the time? Last 120 days.

50%–60% 47.1% n=51
60%–70% 69.4% n=49
70%–80% 58.6% n=29

bar = how often the favorite actually won · notch = what the model predicted

Recently graded

Model favoriteResultWin %Final
Mon, Oct 12 →
Eala A. ✗ miss 90.2% Shi H. 16, Eala A. 12
Sakkari M. ✓ hit 63.2% Vekic D. 6, Sakkari M. 12
Frech M. ✓ hit 58.4% Frech M. 13, Sawangkaew M. 9
McNally C. ✓ hit 53.1% Starodubtseva Y. 16, McNally C. 15
Bejlek S. ✗ miss 54.3% Bejlek S. 7, Paolini J. 12
Kartal S. ✓ hit 71.2% Kartal S. 13, Kalinina A. 8
Tjen J. ✓ hit 84.6% Ito A. 4, Tjen J. 12
Sun, Oct 11 →
Andreeva M. ✗ miss 69.3% Andreeva M. 9, Zheng Q. 13
McNally C. ✓ hit 55.5% McNally C. 16, Tararudee L. 11
Bondar A. ✗ miss 51.2% Sawangkaew M. 14, Bondar A. 12
Frech M. ✗ miss 90.1% Ito A. 13, Frech M. 10
Kasatkina D. ✓ hit 55.9% Kasatkina D. 14, Sorribes Tormo S. 9
Rakhimova K. ✗ miss 77.8% Rakhimova K. 7, Shi H. 13
Kraus S. ✗ miss 52.5% Kraus S. 6, Sonmez Z. 12
Osorio C. ✗ miss 50.5% Volynets K. 15, Osorio C. 13
9 earlier slates
Model favoriteResultWin %Final
Sat, Oct 10 →
Ruse E. ✗ miss 50.9% Putintseva Y. 9, Ruse E. 6
Boisson L. ✗ miss 51.1% Boisson L. 7, Bondar A. 7
Mertens E. ✗ miss 52.6% Mertens E. 7, Zheng Q. 13
Andreeva M. ✓ hit 59.2% Bartunkova N. 4, Andreeva M. 12
Sonmez Z. ✓ hit 51.3% Zakharova A. 5, Sonmez Z. 12
Kraus S. ✓ hit 64.6% Linette M. 8, Kraus S. 13
Tararudee L. ✓ hit 63.9% Liu C. 10, Tararudee L. 13
McNally C. ✓ hit 63.4% McNally C. 12, Yuan Y. 5
Joint M. ✗ miss 61.7% Joint M. 14, Sawangkaew M. 17
Volynets K. ✓ hit 64.5% Volynets K. 12, Kudermetova P. 3
Osorio C. ✓ hit 67.4% Grant T. 13, Osorio C. 18
Stearns P. ✗ miss 80.6% Shi H. 15, Stearns P. 15
Rakhimova K. ✓ hit 67.5% Rakhimova K. 12, Kenin S. 3
Gibson T. ✗ miss 61.6% Sorribes Tormo S. 13, Gibson T. 5
Golubic V. ✗ miss 52.2% Golubic V. 16, Kasatkina D. 17
Parks A. ✗ miss 72.3% Parks A. 5, Ito A. 12
Fri, Oct 9 →
Swiatek I. ✗ miss 70.6% Swiatek I. 9, Mertens E. 13
Svitolina E. ✗ miss 57.3% Svitolina E. 9, Zheng Q. 13
Thu, Oct 8 →
Andreeva M. ✓ hit 75.4% Andreeva M. 14, Alexandrova E. 12
Muchova K. ✗ miss 58.1% Bartunkova N. 12, Muchova K. 3
Wed, Oct 7 →
Zheng Q. ✓ hit 62.7% Zheng Q. 14, Charaeva A. 11
Gauff C. ✗ miss 74.9% Mertens E. 12, Gauff C. 6
Swiatek I. ✓ hit 67.2% Swiatek I. 12, Jovic I. 4
Tue, Oct 6 →
Bartunkova N. ✓ hit 73.5% Bartunkova N. 16, Kraus S. 9
Muchova K. ✓ hit 61.2% Osaka N. 17, Muchova K. 15
Noskova L. ✗ miss 66.9% Alexandrova E. 12, Noskova L. 4
Andreeva M. ✓ hit 74.2% Andreeva M. 12, Snigur D. 4
Mon, Oct 5 →
Mertens E. ✓ hit 60.8% Mertens E. 15, Ostapenko J. 11
Svitolina E. ✓ hit 66.2% Svitolina E. 13, Sakkari M. 9
Swiatek I. ✓ hit 90.1% Swiatek I. 17, Vekic D. 14
Sun, Oct 4 →
Gauff C. ✓ hit 98.4% Sun X. 6, Gauff C. 13
Bouzkova M. ✗ miss 52.1% Zheng Q. 18, Bouzkova M. 17
Kartal S. ✗ miss 71.0% Kartal S. 5, Charaeva A. 12
Jovic I. ✓ hit 67.6% Rakhimova K. 6, Jovic I. 13
Muchova K. ✓ hit 81.1% Samsonova L. 12, Muchova K. 16
Osaka N. ✓ hit 69.9% Osaka N. 13, Bejlek S. 10
Snigur D. ✓ hit 61.2% Preston T. 1, Snigur D. 12
Yastremska D. ✗ miss 52.0% Yastremska D. 5, Kraus S. 12
Noskova L. ✓ hit 76.0% Golubic V. 3, Noskova L. 12
Shnaider D. ✗ miss 71.5% Shnaider D. 13, Alexandrova E. 15
Andreeva M. ✓ hit 91.9% Andreeva M. 12, Kudermetova P. 5
Sabalenka A. ✗ miss 73.3% Sabalenka A. 7, Bartunkova N. 12
Sat, Oct 3 →
Zheng Q. ✓ hit 51.1% Kalinskaya A. 11, Zheng Q. 15
Rybakina E. ✗ miss 90.4% Charaeva A. 15, Rybakina E. 13
Bouzkova M. ✓ hit 67.2% Birrell K. 8, Bouzkova M. 12
Svitolina E. ✓ hit 69.2% Svitolina E. 13, Siniakova K. 12
Bencic B. ✓ hit 84.5% Zakharova A. 7, Bencic B. 13
Jovic I. ✓ hit 92.6% Dart H. 12, Jovic I. 14
Bucsa C. ✗ miss 81.9% Bucsa C. 9, Sun X. 13
Sakkari M. ✓ hit 78.6% Hunter S. 4, Sakkari M. 12
Badosa P. ✗ miss 51.3% Badosa P. 11, Ostapenko J. 14
Mertens E. ✓ hit 52.4% Mertens E. 17, Volynets K. 11
Gauff C. ✓ hit 87.5% Osorio C. 14, Gauff C. 17
Swiatek I. ✓ hit 97.1% Swiatek I. 12, Gao X. 5
Fri, Oct 2 →
Potapova A. ✗ miss 69.5% Kraus S. 4, Potapova A. 1
Sabalenka A. ✓ hit 95.8% Sabalenka A. 12, Zarazua R. 4
Snigur D. ✓ hit 55.4% Snigur D. 16, Paolini J. 14
Tauson C. ✗ miss 59.6% Kudermetova P. 16, Tauson C. 14
Bejlek S. ✓ hit 77.4% Inglis M. 8, Bejlek S. 13
Muchova K. ✓ hit 90.6% Boulter K. 7, Muchova K. 13
Bartunkova N. ✓ hit 59.9% Frech M. 4, Bartunkova N. 12
Shnaider D. ✓ hit 84.7% Shnaider D. 12, Tjen J. 4
Noskova L. ✓ hit 66.0% Ruse E. 5, Noskova L. 12
Chwalinska M. ✗ miss 79.0% Chwalinska M. 4, Yastremska D. 12
Stearns P. ✗ miss 59.1% Stearns P. 13, Golubic V. 15