Answers from sportingo.com
1. Horse racing
2. Soccer (association football, also known as futbol in various Spanish-speaking countries)
3. Cricket
4. Rugby
5. Field Hockey
T6: Baseball
T6: Basketball
There are often minor variations in this list. IMPORTANT NOTE: if you see an answer stating volleyball (998 million players) is the most popular, you have been tricked by this completely false website:
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