mashup - Game On! mashup has organized over 12,000+ games bringing people together to get active and social. We know how much fun it is to play sports and meet new people, and our philosophy of building a social community through athletics continues to strengthen the mashup network while making sure everyone has a great time. We also know how difficult organizing can be - spreadsheets, email chains, getting in touch with all the players, collecting money, countless texts/phone calls - What a headache! mashup's platform streamlines all of this and creates a simple, easy, user-friendly way for you to start doing what you want quickly - having fun! Get active. Get social. Get organized.