The men's 100m breaststroke events at the 2017 World Para Swimming Championships were held in Mexico City between 2–7 December.^[1]

Event	Gold	Silver	Bronze
SB4	Li Junsheng  China	Moisés Fuentes  Colombia	Antonios Tsapatakis  Greece
SB5	Antoni Ponce Bertran  Spain	Karl Forsman  Sweden	Do Thanh Hai  Vietnam
SB6	Nelson Crispín  Colombia	Andreas Skaar Bjornstad  Norway	Juan Jose Gutierrez Bermudez  Mexico
SB7	Carlos Serrano Zárate  Colombia	Yang Hong  China	Mark Malyar  Israel
SB8	Oscar Salguero Galisteo  Spain	Xu Haijiao  China	Federico Morlacchi  Italy
SB9	Ruan Felipe Lima de Souza  Brazil	Only one medalist
SB11	Tharon Drake  United States	Miroslav Smrcka  Czech Republic	Mindaugas Dvylaitis  Lithuania
SB12	Uladzimir Izotau  Belarus	Anuar Akhmetov  Kazakhstan	Andrey Afanasyev  Kazakhstan
SB13	Ihar Boki  Belarus	Ivan Salguero Oteiza  Spain	Gerasimos Lignos  Greece
SB14	Adam Ismael Wenham  Norway	Robert Isak Jonsson  Israel	Aymeric Parmentier  Belgium

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