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How accurate is hand timing?
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On the weekend at the Vic track cup, I did some hand timing
At the Vic Track cup, I did some hand timing, it's interesting to compare to the electronic system - my average error was 0.04s, the worst was 0.13s (I was distracted for that one by people in front of the start line).
Touted around is that hand timing is no better than 0.1s, I say "rubbish", if you're concentrating and not having your line of sight blocked, you can be around 0.05s or better pretty consisantly. Here's the raw data, electronic timing rounded to hundredths.
| Hand | Electronic | |
| error | ||
| 12.48 | 12.39 | 0.1 |
| 11.44 | 11.40 | 0.04 |
| 11.63 | 11.60 | 0.03 |
| 11.15 | 11.09 | 0.06 |
| 11.96 | 11.90 | 0.06 |
| 12.35 | 12.34 | 0.01 |
| 11.47 | 11.50 | 0.03 |
| 13.76 | 13.71 | 0.05 |
| 11.93 | 11.90 | 0.03 |
| 13.12 | 13.08 | 0.04 |
| 13.05 | 13.01 | 0.04 |
| 12.35 | 12.31 | 0.04 |
| 12.40 | 12.37 | 0.03 |
| 11.54 | 11.50 | 0.04 |
| 10.77 | 10.77 | 0 |
| 11.26 | 11.22 | 0.04 |
| 11.63 | 11.61 | 0.02 |
| 11.24 | 11.22 | 0.02 |
| 10.87 | 10.88 | 0.01 |
| 10.91 | 10.92 | 0.01 |
| 11.37 | 11.39 | 0.02 |
| 12.00 | 12.02 | 0.02 |
| 11.42 | 11.41 | 0.01 |
| 11.40 | 11.35 | 0.05 |
| 10.94 | 10.81 | 0.13 |
