Racket Sports

We’ve got something special for Indonesia’s data community! 🚀 Alexey Milovidov, co-founder and CTO of ClickHouse, will be stopping by this April as part of his APJ AI tour. Come join us for an evening of learning from database experts, and great conversations with the ClickHouse community. **🗓️ AGENDA:** * 6:30 PM: Registration, Dinner & Chitchat * 7:00 PM: Welcome and Introductions * 7:05 PM: **The Data Engine Behind AI: Powering Language Models at Scale** by Alexey Milovidov, Co-Founder & CTO @ ClickHouse * 7:35 PM: **Speed as a Feature: Markethac's Journey from BigQuery to ClickHouse** by Adhitya Cahyadi, Business Director @ Markethac * 8:00 PM: **Speed at Scale: How ASTRO Powers Quick-Commerce with ClickHouse** by Matheus Alvian Wikanargo, Lead Data Engineer @ ASTRO * 8:25 PM: Q&A * 8:40 PM: Networking & Close **👉🏼 RSVP to secure your spot!** **_____________________________________** **🎤 Session Details: The Data Engine Behind AI: Powering Language Models at Scale** Behind every AI breakthrough is a mountain of data — and the real challenge is moving, shaping, and querying it fast enough to keep up. In this session, Alexey will take a deep dive into how large language models are trained, fine-tuned, and served, with a focus on the data pipelines and architectures that make it all work. You’ll see live demos of ClickHouse tackling massive AI-scale datasets in real time, along with performance benchmarks that reveal just how far you can push the engine. Expect actionable tips, architectural patterns, and a few ClickHouse tricks that data engineers, architects, and AI enthusiasts can bring straight into their own projects. **Speaker: Alexey Milovidov, Co-Founder & CTO of ClickHouse** Alexey Milovidov is the Co-founder and CTO of ClickHouse, Inc., with 16 years of experience in data-intensive applications. He began developing ClickHouse in 2009 and released it as open source in 2016. Before ClickHouse, Alexey developed the data processing engine for the world's second-largest web analytics system. In 2021, Alexey came together with two co-founders to build ClickHouse and is focused daily on expanding its capabilities and optimizing performance. His expertise lies in data processing algorithms and high-performance technologies, driving his passion for data and innovation in the field. Ask him about speed, or CI, go on... we dare you! **🎤 Session Details: Speed as a Feature: Markethac's Journey from BigQuery to ClickHouse** Every e-commerce insight starts with a question — but when your data grows faster than your queries can run, the answers stop coming in time. In this session, Adhitya will walk through how Markethac migrated its analytics stack from BigQuery to ClickHouse to meet the real-time demands of Indonesian e-commerce intelligence at scale. You'll get a behind-the-scenes look at the architecture decisions, ingestion pipeline design, and optimizations that made the migration work — along with live demo showing the performance gap between the two engines on real marketplace data. If you're sitting on a growing analytical workload and wondering whether your current warehouse can keep up — this one's for you. **Speaker: Adhitya Cahyadi, Business Director @ Markethac** Adhitya Cahyadi is the Business Director and Chief of Product at Markethac, an e-commerce intelligence platform built for the Indonesian and Southeast Asian market. He joined Markethac in 2022 growing the business by leading the product, data engineering, and analytics teams behind Markethac's core offering and innovations. Started in data analytics field in his previous role, Adhitya is passionate on turning raw marketplace data into structured, AI-powered workflows that help enterprises make faster, more confident decisions. **🎤 Session Details: Speed at Scale: How ASTRO Powers Quick-Commerce with ClickHouse** ASTRO is a 24/7 quick-commerce platform offering over 15,000+ selected products, delivering orders within minutes to help customers meet their everyday needs. In this session, ASTRO shares its journey using ClickHouse to power real-time analytics at scale, covering how long the team has been using ClickHouse, the key use cases implemented, and how their data platform evolved to support quick commerce. The talk will highlight measurable improvements in query performance, scalability, and operational efficiency, as well as the impact on faster, data-driven decision-making. ASTRO will also discuss the challenges encountered—from handling high data volumes to optimizing performance—and how ClickHouse helped overcome these bottlenecks, enabling reliable, real-time visibility into operations. **Speaker:** **Matheus Alvian Wikanargo**, **Lead Data Engineer @ ASTRO** Matheus Alvian Wikanargo is a Lead Data Engineer at ASTRO, where he focuses on building and evolving the company’s data platform to support analytics, operational use cases, and real-time decision-making. He works across data platform development, architecture, and governance, with a strong interest in designing scalable systems that grow alongside business needs.

Hello, we already have members, so the game is always on!! New Normal for JEB Badminton To support government maintaining restrictions to contain the spread of COVID-19, JEB will update the regulations by setting the game with limited player and applied the following conditions : Fee Join = Rp. 80.000,- / person with max 8 players /court . 2 courts' court no 6&7 Cancellation Policy : A. More than 10 hours before game - no penalty / charge from Fee Join. B. Less than 9 hours before game - a half penalty / charge from Fee Join. Thank you for your kind understanding. Cu soon 🤩

Want to unwind after work with some fun? How about hitting the tennis courts at Anol Tennis Warehouse with people who are at your level (Intermediate)? It’s a weekly event, and we’re always welcoming new members, so you can get a great workout and make some new friends all at once. Looking forward to seeing you there soon! Fee is 198,000 Rp per person.

Main Bareng Pickleball at Ancol Tennis Warehouse. Join us for fun, socialising and sports at Ancol Tennis Warehouse.

Join us for an unforgettable night 7:30pm in Jakarta [[Click This Whatsapp Groupchat Link](https://chat.whatsapp.com/I8piLGquTos5Ty8i1Q6cl1)] We’re not just a language exchange — we’re a roaming social experience for 20s and 30s who love new faces and open conversations. Whether you're an expat, traveler, or Seoulite looking for something beyond the usual Saturday, this is the place to be. Connect, talk, laugh, repeat.

**Join us for an extraordinary journey through Indonesia's rich artistic heritage at the prestigious National Gallery of Indonesia, followed by a delightful evening hangout at Melly's Garden!** This Saturday afternoon-to-evening meetup promises to be an engaging blend of art, culture, dining, and social connection that will leave you with a deeper appreciation for Indonesia's creative spirit and Jakarta's vibrant social scene. **Part 1: Art Gallery Vibes (Afternoon)** The National Gallery of Indonesia is one of the country's leading art institutions, showcasing an inspiring collection of Indonesian and international artworks. From classic masterpieces to contemporary expressions, this meetup will transform your typical gallery visit into an interactive cultural and artistic exploration. **Part 2: Garden Nights (Evening)** After exploring Indonesia's fascinating history, we'll transition to the charming ambiance of Melly's Garden for dinner, drinks, and continued conversation. This cozy garden restaurant offers the perfect setting to unwind, share stories from the museum, and enjoy Jakarta's evening atmosphere with your new friends. This is a fun and social event, perfect for making new friends and connecting with the active and friendly Jakarta Social Community. Everyone is welcome! **Event Details:** **Date:** Saturday, 25th of April **Museum Time:** 4:00 PM - 6:30 PM **Location:** National Gallery of Indonesia (Galeri Nasional Indonesia) **Meeting Point:** Main entrance lobby of the gallery **Price:** 50k IDR. Pay at the door *** **Melly's Garden Time:** 7:00 PM onwards **Location:** Melly's Garden, **Cost:** Pay for your own food and drinks (various menu options available) *** **Optional:** Feel free to join us for just one part or stay for the complete experience! **📢 IMPORTANT: Attendance Reconfirmation Required** To ensure accurate headcounts and reduce no-shows, we're implementing an updated reconfirmation system for all events. **Here's how it works:** * All events start with unlimited RSVPs. * 4 days before each event, a reconfirmation form will be posted in the event comments. * You must reconfirm ASAP by submitting the form. Your spot is guaranteed only after you reconfirm. * The form closes once we reach the target attendance number. * Anyone who hasn’t reconfirmed when the form closes will be removed from the attendee list. * If you can’t attend, change your status to Not Going. **Two‑strike rule: If you don’t reconfirm and don’t change to your status to Not Going two times, you will be removed from the group.** Thanks for helping us keep things running smoothly. Looking forward to seeing you all there. If you have any questions, please feel free to let me know here or join our friendly and active WhatsApp Group Chat: [https://chat.whatsapp.com/FBQsf4Cv4yWACNs9gbiYNH](https://chat.whatsapp.com/FBQsf4Cv4yWACNs9gbiYNH) Instagram:[ https://www.instagram.com/jakartasocialgroup](https://www.instagram.com/jakartasocialgroup)

Nongkrong sambil berbahasa Prancis! Niveau minimum : A2 mais tout le monde est bienvenu !

Let's get mad with laughter at this special comedy event in English! Join other Jakarta Writers (former Jakarta Creatives) to attend this fun afternoon, make new friends, and avoid being roasted alone in the audience! 😄 Everyone is welcome to join! **This event is FREE to attend!** The event is organised to support our friends "Mad for Laughs". Please take a look at their page too and consider joining their group to support local creatives, artists, and comedians in the city! https://www.meetup.com/english-open-mic-stand-up-comedy/ Come alone of with a friend/partner/family/colleague! At the end of the event we can gather and mingle outside the venue! **ABOUT THE EVENT** 🎤 Expect anything from bold new comics to people just testing the waters. No script, no filter, just raw, unpolished fun. 📍Doors open at 3:30PM \| Show starts at 4:00PM 🎟 Free entry\. Bring your friends\, your date\, or just yourself just make sure to RSVP the total pax\, because we have limited seats\! Interested in performing? Sign up [here](https://forms.gle/x1YsKfoNBSsFXsd29)! **With Jakarta Writers (former Jakarta Creatives) we have organised many comedy events before! Take a look here:** * [ENGLISH COMEDY SHOW at Mad For Laugh (Feb 2026)](https://www.meetup.com/jakarta-writers/events/313406747/) * [ENGLISH COMEDY SHOW at Mad For Laugh (Jan 2026)](https://www.meetup.com/jakarta-writers/events/312964219/) * [ENGLISH COMEDY SHOW at Mad For Laugh (Nov 2025)](https://www.meetup.com/jakarta-creatives/events/311725577/) * [ENGLISH COMEDY SHOW at Mad For Laugh (Sept 2025)](https://www.meetup.com/jakarta-creatives/events/311180281/) * [ENGLISH COMEDY SHOW at Mad For Laugh (Aug 2025)](https://www.meetup.com/jakarta-creatives/events/310350396/) * [Comedy night (December 2023)](https://www.meetup.com/jakarta-creatives/events/297393682/) * [Comedy night open mic (July 2023)](https://www.meetup.com/jakarta-friends/events/294474235/?eventOrigin=your_events) * [Comedy night (July 2023)](https://www.meetup.com/jakarta-friends/events/294901153/) **ABOUT THE VENUE** **Mad for Coffee Cipete** is a cozy café with a dedicated area for the show! I guess they have coffee, as well 😉 **HOW TO REGISTER TO THE EVENT?** To register, just click “Attend”! There are a few simple rules * We kindly ask attendees who cannot manage to join to **update RSVP at least 24 h before the event** as a courtesy to other attendees and event organisers. * Attendees who bring a +1 need to make sure that the guest abide to our rules our respect and inclusivity Thank you for your understanding and cooperation! **THE RULES OF OUR COMMUNITY** Our communities are: * **Jakarta Friends**: [https://www.meetup.com/jakarta-friends](https://www.meetup.com/jakarta-friends) * **Jakarta Writers** (former Jakarta Creatives): [https://www.meetup.com/jakarta-writers/](https://www.meetup.com/jakarta-creatives/) Members often participate in events of both groups. Over the past two years, we held over 250 events with over 2,000 attendees. Attendees rate our events **very positively** and give wonderful feedback, with an average of **4.8**⭐ (out of 5⭐) afrom over 300 reviews ([take a look at our reviews here!](https://www.meetup.com/jakarta-creatives/feedback-overview/)) We value diversity, inclusivity, respect, and authenticity. We **do not tolerate** harassment or discrimination of any kinds. * You are invited to join our WhatsApp group where we announce our events regularly: [https://chat.whatsapp.com/BR0sC0BrPbc9xTqvj1qLfx](https://chat.whatsapp.com/BR0sC0BrPbc9xTqvj1qLfx) * Feel free to tag us on Instagram, and we will repost! [www.intagram.com/jakarta.friends.creatives](http://www.intagram.com/jakarta.friends.creatives) * For questions about the event, please post a comment on the event page, or DM the event organisers

**How does a TennisColumbus Season / League run?** The league advertises the season dates and builds a queue of committed players for the season. **Kickoff Day - June 10th** The start day of the season, players are sent a kickoff email that contains important information about the league, the link where your league standings and players contact information. We guarantee 6 playing partners at your playing level, but have been averaging closer to 15+ partners in most cities. The number of different levels we run is solely based upon the number of players enrolled for the league kickoff. Typically we are running a Skilled-3.0, Competitive-3.5 and Advanced-4.0 in most cities. **Your Task - "Flexible Scheduling"** After this kickoff email is sent, it is the **player's task to communicate with other players**. Players should work with their partners to find an agreeable time and location to play the match. While TennisColumbus doesn't mandate your playing schedule, it is recommended that players schedule at least one match per week. By request of the players, we started to allow players to play 1 rematch per season. The regular season is all about playing as much as you can. As of Feb. 10, 2026 we've had an amazing 2,017 players play more than [20 matches in a season](https://www.tenniscolumbus.com/info/MatchesInSeason). **Where to Play?** Play at your local free tennis courts, tennis parks, condo courts or tennis clubs. The league strongly suggests that players jointly try to pick a tennis court location convenient to both. We provide an extensive list of [tennis courts](https://www.tenniscolumbus.com/TennisCourts), including # of courts, lighting, hitting walls, etc. We strive to keep this list up-to-date. TennisColumbus sets up a must play dates to push players out on the courts. The final deadline is the date marking the end of the season, at which point players with 3-5 wins (Actually total is specified on the division page) will qualify for a post-season playoff to determine the league champion. **How to Play?** Players can use three mostly standard playing formats: 2 out of 3 sets, 2 sets with 10 point super tie-breaker or the 10-game pro set (First to 10, used when court time is limited). On Feb. 2018, we added Fast Tennis 4 game pro set format as a valid format. **Playoffs** Each season concludes with a playoffs where players with anywhere from 3 to 5 season wins qualifies for a single elimination tourney. The champion is awarded based upon the league [Prize Pool](https://www.tenniscolumbus.com/info/prize_pool3). Each singles league champion also receives a playing entry into one of two national championships we run. **[JOIN TODAY](https://www.tenniscolumbus.com/join)** Full price is $39.95 to play in a season. The earlier you sign up we typically offer discounts during these tough economic times. Just go to the [Join Page](https://www.tenniscolumbus.com/join) and complete the short form. We'd be happy to find you dedicated tennis playing partners.

We’re still working to get more people into these Meetups, but our goal is to give PlayYourCourt members a few social tennis outings each week in addition to your practice sessions and Challenge League matches. These Meetups are co-ed, super laid back, and all skill levels are welcome. Post your skill level and a suggested court in the comments section so we can round up as many players as we can for some tennis fun! Also, if you’re looking to meet new practice partners or play some matches and you aren’t already in the PlayYourCourt Community, you can go here to see what we’re all about and sign up: https://www.playyourcourt.com/tennis-community/columbus-oh/meetup/ If you love tennis, we’d love to have you! Be sure and watch the quick video that explains how everything works. Happy hitting! - Scott

We connect you with up to 30 Men or Women tennis partners close to your PLAYING REGION and skill level. This program is less competitive, no champions crowned, no league standings just dedicated tennis partners who want to meet up with you on the courts. Players will meet up to play a tennis match or just to hit around. Just go through the [Join Page](https://www.tenniscolumbus.com/partner-program) to enter this program. [https://www.tenniscolumbus.com/partner-program](https://www.tenniscolumbus.com/partner-program)