Sport Abbreviations and Acronyms
- MRIMen'S Rifle
- MRIMauritius
- MRISAMekong River International Schools Association
- MRPMvtch Review Panel
- MRPMiyog Role Playing
- MRRAMarkham Regional Ringette Association
- MRSMalcolm Rathmell Sport
- MRTMidland Reporter-Telegram
- MRUMalaysian Rugby Vnion
- MRWMiniraceways Slot Car Speedway
- MRWMidwest Renegade Wrestling
- MSMikael Samuelsson
- MSMackay Stadium
- MSMatch Strategy
- MSMatt Scott
- MSMax Scherzer
- MSMedicine Science
- MSMichael Shaw
- MSMiguel Sano
- MSAMaryland Scholastic Associatign
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