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Results and figures of the article by Adlakha et al. (2014) contained minor errors, which we hereby rectify. Results show that a large majority of running and walking routes were through or tangential to a park or green space. A total of 1,722.01 miles from 287 running routes and 236.84 miles from 71 walking routes appear in Figure ​Figure11 and Table ​Table1.1. The average lengths of a run and walk in this sample were 6.00 and 3.33 miles, respectively. Of all the parks in the study area, 70% were located in low-income neighborhoods. Of the 287 running routes, 80.80% traversed a park at some point during the run and 6.97% of these runs took place in parks located in low-SES neighborhoods. Of the 71 walking routes, 70.40% traversed a park at some point during the walk and 15.50% of walking routes occurred in parks located in low-SES neighborhoods. Figure ​Figure22 illustrates the availability of many parks across St. Louis, but shows fewer mapped running or walking routes in the northern half of the region that features more low-SES neighborhoods. Figure 1 Running routes, walking routes, and poverty rate in St. Louis, MO, USA. Table 1 Use of parks in St. Louis, MO for physical activity in 2012a. Figure 2 Running and walking routes in parks and poverty rate in St. Louis, MO, USA. The odds of reported running and walking routes traversing low-SES neighborhoods were significantly lower than the odds of running and walking routes reported in higher-SES neighborhoods (runs: OR = 0.36, CI = 0.21–0.62; walks: OR = 0.41, CI = 0.23–0.73) (Table ​(Table2).2). The odds of running in a park in a low-SES neighborhood were 52% lower than running in a park in a higher-SES neighborhood (OR = 0.48, CI = 0.29–0.79). The odds of walking reported in a park in a low-SES neighborhood were 64% lower than walking in a park in a higher-SES neighborhood (OR = 0.36, CI = 0.16–0.82). Table 2 Logistic regression: odds of running and walking in a low-SES neighborhood (N = 238) and park (N = 511), compared to higher-SES neighborhoods. Revised results indicate decreased odds of reported running and walking in low-SES St. Louis neighborhoods compared to higher-SES St. Louis neighborhoods (Table ​(Table1).1). This finding is consistent with the disparate rates of PA in low versus higher-SES areas (1, 2). Overall, the lower odds of reported running and walking in low-SES neighborhoods and parks located in these low-SES neighborhoods compared to higher-SES neighborhoods and parks corroborates several health and environmental disparities between north and south St. Louis.