Grand Prix
SummaryStatisticsTeamsPositionsTeam MatesYear by Year
| Name | Harry Horstman |
| Country |  United States |
| Date of Death | 11/11/1916 |
| Races | 1 |
| Race Starts | 0 |
| Victories | 0 |
| Poles | 0 |
| Fastest Laps | 0 |
| Podiums | 0 |
| Laps | 0 |
| Laps Led | 0 |
Mercer (1916)
| EXC | 1 Time |
| Season | Team | Team Mate | Best Pos | Points | Wins | Poles | Position | Qualifying | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1916 | Mercer | Eddie Pullen | 26 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| Glover Ruckstell | 26 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||
| Joe Thomas | 26 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | ||