Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Place | Rider | Country | Machine | Speed | Time | Points |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Kel Carruthers | Australia | Yamaha | 96.13mph | 2:21.19.2 | 15.0 |
| 2.0 | Rod Gould | United Kingdom | Yamaha | 93.75mph | 2:24.54.0 | 12.0 |
| 3.0 | Günter Bartusch | East Germany | MZ | 93.75mph | 2:26.58.0 | 10.0 |
| 4.0 | Chas Mortimer | United Kingdom | Yamaha | 91.95mph | 2:27.44.2 | 8.0 |
| 5.0 | Peter Berwick | United Kingdom | Suzuki | 91.93mph | 2:27.46.0 | 6.0 |
| 6.0 | Alex George | United Kingdom | Yamaha | 91.42mph | 2:28.35.8 | 5.0 |
| 7.0 | Ian Richardson | United Kingdom | Yamaha | 91.22mph | 2:28.53.6 | 4.0 |
| 8.0 | Börje Jansson | Sweden | Yamaha | 90.57mph | 2:29.59.6 | 3.0 |
| 9.0 | Tony Smith | United Kingdom | Yamaha | 90.44mph | 2:30.12.2 | 2.0 |
| 10.0 | Bill Smith | United Kingdom | Yamaha | 90.20mph | 2:30.36.2 | 1.0 |
Question:
Which rider had a speed of 90.57mph?
Answer:
Börje Jansson