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 |
|---|---|---|---|---|---|
| 30 Oct | J. MacKinlay beat D. Popko | M25 Malta (Malta) | 1 - 2 | 26.14 | 4% |
| 28 Oct | P. Karthik beat E. Kirkin | M15 Singapore 4 (Singapore) | 2 - 0 | 13.61 | 7% |
| 31 Oct | A. El Sayed beat K. Dmitruk | ITF W15 Sharm ElSheikh 17 Women | 2 - 0 | 12.00 | 8% |
| 31 Oct | A. Safonov beat A. Omarkhanov | M15 Fergana (Uzbekistan) | 2 - 1 | 10.63 | 9% |
| 31 Oct | F. Rengifo beat M. Soto | M15 Mazatlan (Mexico) | 0 - 2 | 8.82 | 11% |
| 29 Oct | O. Jasika beat L. Harris | Seoul | 0 - 2 | 7.82 | 12% |
| 29 Oct | Y. Chung beat Y. Bu | Seoul | 2 - 0 | 7.50 | 13% |
| 27 Oct | J. Moon beat K. Hayasaka | W15 Singapore 4 (Singapore), Hard | 1 - 2 | 7.50 | 13% |
| 29 Oct | B. Thompson beat D. Back | W35 Sydney 2 (Australia) | 2 - 1 | 7.00 | 14% |
| 29 Oct | T. Longwe-Smit beat I. Xilas | M15 Heraklion 10 | 2 - 0 | 6.87 | 14% |
| 30 Oct | M. Ponchet beat M. Krumich | M25 Sheffield 2 (United Kingdom) | 2 - 1 | 6.47 | 15% |
| 28 Oct | G. Ciocca beat F. Nidunjianzan | M15 Monastir 37 | 0 - 2 | 6.56 | 15% |
| 1 Nov | A. Safonov beat D. Singh | M15 Fergana (Uzbekistan) | 1 - 2 | 6.52 | 15% |
| 3 Nov | N. Makhlouf beat G. Marques | M15 Monastir 38 | 0 - 2 | 6.48 | 15% |
| 27 Oct | M. Malige beat H. Searle | M25 Sheffield 2 (United Kingdom) | 1 - 2 | 6.25 | 15% |
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.