Indy 500 Career Stats - Harry Hartz
| Starts | Total Laps | Best Start | Best Finish | Top 5 | Top 10 | Races Led | Laps Led | Winnings |
| 6 | 996 | 2 | 2 | 5 | 5 | 4 | 57 | $ 42,190 |
| Year | Finish | Start | Car # | Car Name/Entrant* | C/E/T | Qual Speed | Run/Out | Laps | Led | Winnings |
| 1927 | 25 | 4 | 1 | Erskine Miller | Miller / Miller / Firestone | 116.730 | Crankshaft | 38 | 0 | $390 |
| 1926 | 2 | 2 | 3 | Miller | Miller / Miller / Firestone | 109.540 | Running | 158 | 6 | $13,900 |
| 1925 | 4 | 3 | 6 | Miller | Miller / Miller / Firestone | 112.430 | 98.892 | 200 | 3 | $4,300 |
| 1924 | 4 | 2 | 4 | Durant | Miller / Miller / Firestone | 107.130 | 96.544 | 200 | 0 | $3,500 |
| 1923 | 2 | 2 | 7 | Durant | Miller / Miller / Firestone | 103.700 | 90.063 | 200 | 6 | $10,100 |
| 1922 | 2 | 2 | 12 | Duesenberg Straight 8 | Duesenberg / Duesenberg / | 99.970 | 93.534 | 200 | 42 | $10,000 |
