This book presents data on daily lucky pairs in thoroughbreds horse racing. A daily lucky pair is a pair of horse numbers which gives a maximal positive return on investment if a player places exacta bets on this pair in all races for a given day. This book will be interesting to horse racing enthusiasts, researchers, statisticians, actuaries, forecasters, data analysts, experts in numerology, sports historians, alternative investments specialists, lotteries hobbyists, sport arbitragers, financial engineers, astrologers, developers/testers of forecasting software/systems, students of astronumerology and geonumerology, etc. Each chapter covers a one year period on a specific track.