Harry Henry Hartz
Birthplace: Pomona, California
Born: December 24, 1896
Died: September 26, 1974
Harry Hartz
Harry Henry Hartz
Birthplace: Pomona, California
Born: December 24, 1896
Died: September 26, 1974
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| Track | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Altoona | 9 | 0 | 0 | 2 | 0 | 2 | 1 | 1 | |
| Atlantic City | 4 | 0 | 3 | 0 | 1 | 0 | 0 | 0 | |
| Beverly Hills | 10 | 1 | 0 | 1 | 4 | 2 | 1 | 0 | |
| Charlotte-BO | 11 | 0 | 1 | 5 | 1 | 1 | 1 | 2 | |
| Cotati | 4 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | |
| Culver City | 5 | 0 | 0 | 3 | 2 | 0 | 0 | 0 | |
| Fresno | 6 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | |
| Fulford | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Indianapolis | 6 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | |
| Kansas City | 4 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| Laurel | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | |
| Rockingham | 7 | 1 | 1 | 3 | 0 | 1 | 0 | 0 | |
| San Carlos | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | |
| Syracuse | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 |
| Tacoma-O | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Uniontown | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| Chassis | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Cooper | Relief | drove | only | ||||||
| Duesenberg | 22 | 0 | 1 | 4 | 6 | 3 | 1 | 0 | |
| Miller | 52 | 2 | 6 | 16 | 6 | 6 | 2 | 3 | |
| Unknown | Non | points | races | only |
| Engine | Starts | DNS/DNQ | Wins | 2nds | 3rds | 4ths | 5ths | Best Finish | Poles |
| Duesenberg | 21 | 0 | 1 | 4 | 6 | 3 | 1 | 0 | |
| Miller | 53 | 2 | 6 | 16 | 6 | 6 | 2 | 3 | |
| Unknown | Non | points | races | only |