# Event Details - **Event Name**: Mahjong Summer Day League at Ono Offshore - **Event Start and End Date**: Mon, 13 Jul, 2026 at 01:00 pm – Mon, 13 Jul, 2026 at 03:00 pm - **Event Description**: American Mahjong Day League at Ono Offshore! Build skills, meet players, and enjoy 4 weeks of friendly competition. Beginner-friendly.About this EventReady to build confidence, improve your game, and enjoy a fun afternoon of Mahjong each week? Our Mahjong League is a four-week social play experience designed for players who want consistent play, light competition, and a welcoming community.Whether you’ve recently completed Mahjong 101 or already have experience with American Mahjong, this league is a great way to practice, connect, and have fun.? DATES & TIMESMondays | 1:00–3:00 PMJuly 13, July 27, August 3, August 10Doors open at 12:40 PM for check-in and socializing.? LOCATIONOno Offshore4515 Daly Drive, Suite N, Chantilly, VA? LEAGUE DETAILS• Limited to 32 players• All Mahjong supplies provided except the NMJL card• Players must bring a 2026 NMJL card• Need a card? Cards will be available for purchase on the first day of league play? WHO SHOULD JOINAll experience levels are welcome. This league is beginner-friendly, and many participants have recently completed Mahjong 101. Players should know the basics of American Mahjong and be able to play independently without instruction.? HOW IT WORKS• Minimum of 4 games each session, with opportunities for bonus games• Rotating tables each week to meet and play with different players• Optional seating by experience level when possible? RECOGNITION & FUN• Weekly recognition and fun acknowledgements throughout the session• Every Mahjong win earns a small trinket (Lucky Ducks and other fun surprises!)• Friendly standings will be tracked throughout the four weeks, with special recognition for the overall league leader at the end of the sessionLeague play is designed to be social, supportive, and focused on improving skills, building confidence, and enjoying the Mahjong community.? FOOD & DRINKSnacks and beverages available for purchase onsite. Players are also welcome to visit Odd BBQ at Ono Brewing before or after play.? SUBSTITUTESCan’t attend one week? You may send a substitute or request assistance finding one.? PRICING$120 includes all four weeks of organized league play, recognition items, and a fun social experience. Use code EARLYBIRDDAY to save $10 before June 5.? POLICIESAll registrations are final and non-refundable. Substitutes are permitted. League requires a minimum of 20 players to run.New to Mahjong? There’s still time to learn before league begins. Sign up for Mahjong 101 and consider a Guided Play or Social Play session to build confidence before joining league play. - **Event URL**: https://allevents.in/chantilly/mahjong-summer-day-league-at-ono-offshore/100001992241969360 - **Event Categories**: fitness, Contests - **Interested Audience**: - total_interested_count: 0 ## Ticket Details - **Ticket Price Range**: min: 129.89, max: 129.89, currency: USD ## Event venue details - **city**: Chantilly - **state**: VA - **country**: United States - **location**: Ono Offshore - **lat**: 38.8832932 - **long**: -77.44193469999999 - **full address**: Ono Offshore, 4515 Daly Drive, Chantilly, United States ## Event gallery - **Alt text**: Mahjong Summer Day League at Ono Offshore - **Image URL**: https://cdn-az.allevents.in/events8/banners/c6fa6179e2380ff880c2c6685f8edabdcddbf21dc0cfe037ac7fb60e154ff294-rimg-w1200-h600-dc01437b-gmir.jpg?v=1781951585 ## FAQs - **Q**: When and where is Mahjong Summer Day League at Ono Offshore being held? - **A:** Mahjong Summer Day League at Ono Offshore takes place on Mon, 13 Jul, 2026 at 01:00 pm to Mon, 13 Jul, 2026 at 03:00 pm at Ono Offshore, 4515 Daly Drive, Chantilly, United States. - **Q**: Who is organizing Mahjong Summer Day League at Ono Offshore? - **A:** Mahjong Summer Day League at Ono Offshore is organized by Mahjong at Ono. ## Structured Data (JSON-LD) ```json [ { "@context": "https://schema.org", "@type": "Event", "name": "Mahjong Summer Day League at Ono Offshore", "image": "https://cdn-az.allevents.in/events8/banners/c6fa6179e2380ff880c2c6685f8edabdcddbf21dc0cfe037ac7fb60e154ff294-rimg-w1200-h600-dc01437b-gmir.jpg?v=1781951585", "startDate": "2026-07-13", "endDate": "2026-07-13", "url": "https://allevents.in/chantilly/mahjong-summer-day-league-at-ono-offshore/100001992241969360", "location": { "@type": "Place", "name": "Ono Offshore", "address": { "@type": "PostalAddress", "streetAddress": "4515 Daly Drive", "postalCode": "20151", "addressLocality": "Chantilly", "addressRegion": "VA", "addressCountry": "US" }, "geo": { "@type": "GeoCoordinates", "latitude": "38.8832932", "longitude": "-77.44193469999999" } }, "eventAttendanceMode": "https://schema.org/OfflineEventAttendanceMode", "description": "American Mahjong Day League at Ono Offshore! 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