Johns Hopkins Covid 19 Map TeamIn the early days of managing the Johns Hopkins COVID-19 dashboard, experts at the university and those at Esri, the company providing the mapping software for the real-time pandemic tracker, had a friendly rivalry.

"They would tell us, 'Oh, your COVID map is big, but not as big as our Pokémon Go map,' which was their most in demand," says Reina Murray, an application administrator at JHU's Sheridan Libraries.

By March, the volume of web traffic to the Hopkins map effectively shut down that conversation—the Hopkins dashboard now holds the record as Esri's highest-used service of all time, drawing hundreds of millions of feature requests every day. At a peak in March, the dashboard saw 4.56 billion feature requests.