'Fastest' Palace players this season

According to a BBC Sport article today

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the 'fastest Premier League players this season' are (top speed km/hour):

Tariq Lamptey (Brighton) 36.6
Kyle Walker (Man City) 36.6
Nathan Tella (Southampton) 35.6
Oliver Burke (Sheff Utd) 35.2
Aboubakar Kamara (Fulham) 35.2
Dominic Calvert-Lewin (Everton) 35.1
Jack Grealish (Aston Villa) 35.1
Jamal Lewis (Newcastle) 35.1
Harvey Barnes (Leicester) 35.1
Kenny Tete (Fulham) 35.1

The article does not explain how these figures are generated, but what about our 'fastest' players this season?

Zaha?
Schlupp?