Bad Bass Half Marathon
Castro Valley, United States of America · Expected Saturday 17 July 2027Date to be confirmed
Difficulty Calculator
Adjusted Time
2:04:03
Time difference: +19.1 minutes compared to an average road half marathon.
Course Details
Typical Race-Day Weather
Average for this date over the last 8 years.
How hard is Bad Bass Half Marathon?
On our difficulty model, Bad Bass Half Marathon plays about 15 minutes slower than an average road half marathon for a 1:30 runner. It ranks #59 hardest of 634 half marathons we analyse, and #15 of 186 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Bad Bass Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Bad Bass Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:44:37 | +14:37 |
| 1:45:00 | 2:04:03 | +19:03 |
| 2:00:00 | 2:23:52 | +23:52 |
| 2:15:00 | 2:44:00 | +29:00 |
| 2:30:00 | 3:04:28 | +34:28 |
| 2:45:00 | 3:25:14 | +40:14 |
| 3:00:00 | 3:46:18 | +46:18 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Bad Bass Half Marathon 2027 Course Analysis
Bad Bass Half Marathon is a half marathon held in Castro Valley, United States of America. The next edition is expected on Saturday 17 July 2027, following the pattern of previous editions (the 3rd Saturday of July). The organisers have not confirmed it yet. The course is run on road surface with 548m of total climbing, with its high point near 257m above sea level. For registration and full race details, visit the official Bad Bass Half Marathon website.
Climbing
At 548m of total climbing, it is hillier than 97% of the 634 half marathons we rate. The hills will cost time: pace the climbs on effort, not on the watch.
Race-day weather
Over the last 3 years this July date has averaged a high of 23°C and a low of 14°C. That is warmer than 71% of the half marathons we track. On our model the expected temperature costs a 1:30 half marathoner about 2 minutes against the same course on a cool 12°C day. It hasn't rained on this date in any of the last 8 years.
Looking for an easier marathon or a tougher challenge? You can also compare Bad Bass Half Marathon against other half marathons to find the right race for your goals.
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If Bad Bass Half Marathon fits your goal, these courses play out about the same on our difficulty model.
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