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Neff ran a 38t chain ring to help her spin through the Waterloo mud. Jolanda Neff's 2019 World Cup Waterloo Trek Boone. © Z. Schuster / Cyclocross Magazine

Neff ran a 38t chain ring to help her spin through the Waterloo mud. Jolanda Neff’s 2019 World Cup Waterloo Trek Boone. © Z. Schuster / Cyclocross Magazine