Oldest winners
| # | Rider | Age |
|---|---|---|
| 1 | Dario Lillo | 17y + 260d |
| 2 | Jan Christen | 17y + 190d |
| 3 | Paul Seixas | 16y + 100d |
Youngest winners
| # | Rider | Age |
|---|---|---|
| 1 | Paul Seixas | 16y + 100d |
| 2 | Jan Christen | 17y + 190d |
| 3 | Dario Lillo | 17y + 260d |
| # | Rider | Age |
|---|---|---|
| 1 | Dario Lillo | 17y + 260d |
| 2 | Jan Christen | 17y + 190d |
| 3 | Paul Seixas | 16y + 100d |
| # | Rider | Age |
|---|---|---|
| 1 | Paul Seixas | 16y + 100d |
| 2 | Jan Christen | 17y + 190d |
| 3 | Dario Lillo | 17y + 260d |