Biggest Tennis Upsets of the Week
The biggest upsets of the last 7 days, ranked by what the market gave the winner beforehand. The final column is the winner's chance according to the pre-match price with the bookmaker's margin removed.
| Date | Result | Event | Score | Winner's price | Market gave him |
|---|---|---|---|---|---|
| 15 Oct | D. Tremblay beat K. Bennani | M25 Luanda | 1 - 2 | 14.11 | 7% |
| 15 Oct | W. Rejchtman Vinciguerra beat D. Suresh | M25 Solapur (India) | 0 - 2 | 11.46 | 8% |
| 12 Oct | Z. Bergs beat C. Alcaraz | Shanghai | 2 - 0 | 10.69 | 9% |
| 13 Oct | N. Hollender beat M. Mouilleron Salvo | M15 Quito 4 | 1 - 2 | 8.50 | 11% |
| 14 Oct | M. Aikawa beat E. Malygina | W35 Birmingham 2 (United Kingdom) | 1 - 2 | 8.15 | 12% |
| 12 Oct | H. Guo beat S. Cirstea | Wuhan | 2 - 1 | 7.21 | 13% |
| 13 Oct | M. Kumar beat M. Krajci | M15 Szabolcsveresmart | 2 - 0 | 7.17 | 13% |
| 14 Oct | I. Barrera Aguirre beat T. Krejcova | W35 Monastir 7 | 2 - 1 | 6.82 | 14% |
| 15 Oct | C. Blomqvist beat R. Zelnickova | ITF W15 Sharm ElSheikh 15 Women | 0 - 2 | 6.50 | 14% |
| 14 Oct | S. Paris beat S. Mikaca | W15 Bol | 0 - 2 | 6.59 | 15% |
| 15 Oct | I. Nortey beat N. Jadoun | M25 Luanda | 1 - 2 | 6.57 | 15% |
| 14 Oct | Z. Velcz beat T. Legout | M25 Austin, TX | 2 - 1 | 6.28 | 15% |
| 14 Oct | M. Vaughan beat A. Forger | M25 Austin, TX | 2 - 0 | 6.00 | 15% |
| 10 Oct | S. Vujic beat P. Sekulic | M25 Darwin 2 | 2 - 0 | 5.74 | 17% |
| 13 Oct | J. Snells beat R. Lacasse | W50 Quebec City (Canada), Hard | 0 - 2 | 5.50 | 17% |
Upsets of this size happen roughly as often as the prices say they should - about one match in six at these odds. The ones worth studying are where a reason was visible beforehand: a short-priced favourite playing his third match in three days, or one back from injury.