[ Case Study ]

Fairway Finder

From MVP to Nationwide Platform - Engineering America’s Smartest Tee Time Tool

May 1, 2025

Sanket Rajeev Sabharwal

Approx. read time: 2 minutes

[ Overview ]

Fairway Finder gives golfers a simple, elegant way to discover and book tee times across the United States. What started as a single-purpose alert tool evolved into a nationwide product platform that connects golfers with thousands of courses, surfacing real-time availability in one seamless experience.

[ Client ]

Ryan Walsh - Entrepreneur, Golfer, Founder of Abyssal Digital

[ Sector ]

Sports, Real-time Discovery, Web & Mobile

[ Platforms ]

iOS, Android, Web

[ Budget ]

Confidential

[ Timeline ]

Ongoing

[ Launch ]

June 2025

The Setup

Booking a tee time in the United States is a broken consumer experience. A golfer looking for a Saturday 8 AM slot at a course near their house has to visit six separate course websites, each with its own interface, its own definition of "available", and its own set of quirks. Cancellations free up prime slots every hour, but those openings vanish before anyone who wants them knows they exist. The data is there but it sits locked inside individual course booking systems with no unified view across them.

Picture a city with 200 restaurants where the only way to check for an open table is to walk into each one individually, stand at the host stand, and ask. With no phone, app or aggregation. That is the state of tee time booking for the average golfer in most U.S. markets today. The information exists at every individual course, but there is no single place where a consumer can see all of it at once, compare options, and book in one step.

The founder, Ryan, came to us with a working prototype that handled one piece of the problem well. The app allowed users to save a course and a preferred time, and the system pinged them when a cancellation freed up a matching slot. That alert feature had strong retention and clear product-market fit. The problem was that the architecture underneath it could not support the vision Ryan had for the product, which was to become a full discovery and booking platform serving golfers across the country, on every device, in real time.

The backend could not poll multiple course data sources simultaneously at the speed required for live availability. The mobile experience was limited. The web experience did not exist. And every time a new course came online, it required custom engineering work to integrate its data format into the system. Ryan needed a ground-up rebuild that would turn a single-purpose alert tool into a scalable, multi-market discovery and booking platform, and he needed it built by a team that could own the full stack from product design through deployment without him managing every technical decision along the way.

What We Built

We rebuilt the product end-to-end and delivered four connected systems:

  1. A parallelized backend for live tee time data ingestion

  2. Native iOS and Android mobile applications on shared infrastructure

  3. A responsive web interface

  4. A full-stack observability and analytics layer.


Deliverable

What It Does

Why It Matters

Parallelized Backend

Polls, normalizes, and serves live tee time data from dozens of sources simultaneously

New courses onboard through configuration, not engineering sprints

Native Mobile Apps (iOS and Android)

Shared codebase with native shells for platform-specific interactions

Features ship once and deploy to both app stores

Responsive Web Interface

Same data, speed, and booking flow for desktop and laptop users

No app download required for users arriving through search or shared links

Observability and Analytics Layer

Infrastructure health, user behavior, and business KPIs in a single dashboard

Team catches issues before users notice them

The backend is the engine that makes the entire platform possible. It polls, normalizes, and serves live tee time availability data from dozens of course data sources simultaneously. Each source connects through a standardized data adapter interface, which means every course's proprietary booking system (regardless of how it structures its data, what API it exposes, or what format it returns availability in) gets translated into a single canonical schema before anything touches the consumer-facing application. When a new golf course partner comes online, the operations team maps its data format to the internal schema, runs a validation pass, and enables it. The polling engine picks up the new source on its next cycle, without any downtimes.

This design decision is what makes nationwide scale economically viable. The marginal effort of onboarding course number 200 is roughly the same as onboarding course number 20. Without that architectural choice, every new market expansion would require dedicated engineering resources, and the cost of growth would scale linearly with the number of course partnerships rather than staying flat.


Watch Ryan explain the vision behind Fairway Finder


The Consumer Experience

The mobile and web experience was designed around a single goal: find a tee time and book it in three taps. The discovery layer presents map-based and list-based course search filtered by location, date, time, price, and real-time availability. A golfer opens the app, sees what is open right now within their preferred radius, and narrows the results to exactly the slot they want.

The alert system (the feature that started the entire product and remains one of its strongest retention drivers) fires personalized push notifications the moment a slot opens at a saved course or preferred time window. When a Saturday morning foursome cancels their 7:30 AM reservation at a popular course, every user who saved that course and time receives a notification within minutes, and the first one to tap "Book" gets the slot.

The booking flow completes entirely within the app with no redirects to external course websites. The golfer picks a time, confirms, and receives a confirmation. Three taps from search to booked. Favorites and saved preferences sync across web and mobile so a golfer who browses on their laptop at night can book from their phone the next morning without starting over.


Feature

What It Does

Retention Impact

Discovery (Map + List Search)

Surfaces live availability filtered by location, date, time, and price

First-session activation: users find relevant tee times immediately

Cancellation Alerts

Push notifications fire when a saved slot opens up

Strongest retention driver: users return daily to check alerts

In-App Booking

Three-tap booking with no redirects to external sites

Reduces drop-off by keeping the entire flow inside the app

Cross-Device Sync

Favorites and preferences persist across web and mobile

Users browse on desktop, book on mobile without starting over


The Admin and Operations Dashboard

Running a nationwide discovery platform means managing course partnerships, tracking engagement across dozens of markets, and coordinating outreach as the platform expands into new regions. We built a dedicated web-based admin interface that serves as the central command center for Ryan and his operations team.

The partner onboarding workflow manages the full lifecycle of bringing a new course onto the platform: data format mapping, schema validation, test polling, and activation, all managed through structured steps in a single interface. Engagement visibility dashboards break down user trends, booking volume, and retention metrics by market so the team can see which regions are growing and which need attention. Marketing coordination tools support outreach planning as Fairway Finder enters new geographies. This is where the business runs day to day. One screen, every operational metric that matters.


The Technology Stack

Layer

Technology

Role

iOS Mobile

Swift + Turbo Native

Native shell with shared core logic

Android Mobile

Turbo Native

Native shell with shared core logic

Web and Backend

Ruby on Rails

Fast iteration, API serving, business logic

Primary Database

PostgreSQL

Relational data: courses, tee times, users, bookings

Caching

Redis

Fast reads on live tee time availability queries

Infrastructure

Heroku

Hosting, removes server management overhead

CDN and Security

Cloudflare

Performance, DDoS protection, edge caching

Error Tracking

Sentry

Real-time error detection and alerting

Push Notifications

Firebase

Real-time event delivery to mobile clients

Transactional Email

SendGrid

Booking confirmations, account notifications

Deployment

CI/CD Pipelines

Automated testing and release management

That stack was selected for a specific reason. Ruby on Rails provides fast iteration speed for a product that is still finding its market shape and needs to ship features weekly. PostgreSQL handles the relational density of courses, tee times, users, bookings, and partnerships without fighting the data model. Redis keeps the read-heavy tee time availability queries fast under load without hitting the primary database on every request. Heroku eliminates the infrastructure management tax so Ryan's team spends their time on product development and partnerships rather than server maintenance and deployment orchestration.


The Results

Fairway Finder went from a single-purpose cancellation alert tool to a live discovery and booking platform operating across multiple U.S. markets with native mobile apps on both iOS and Android, a full web experience, and an operational backend that supports nationwide expansion without re-architecting.

The infrastructure design means new markets come online through configuration rather than engineering effort. The operations team can onboard a new course partner, validate its data feed, and make its tee times visible to users without writing a single line of code or waiting for a development cycle. That operational independence is what separates a platform that can grow at the speed of business development from one that grows at the speed of its engineering backlog.

The shared mobile infrastructure means features ship once and deploy everywhere, which gives a small team the release velocity of an organization three times its size. The observability layer means the team catches issues before users experience them and sees business performance data alongside infrastructure health in real time.

Ryan and his team now spend their time on the work that actually grows the business: course partnerships, user acquisition, market expansion, and product direction. The platform no longer demands constant engineering intervention to keep running or to grow. The foundation is built, the system scales horizontally, and the roadmap ahead is clear.


Why Building a Real-Time Multi-Source Booking Platform Is a Hard Product Engineering Problem

Aggregating live availability data from dozens of independent source systems and serving it to consumers through a fast, reliable booking experience involves a set of engineering challenges that grow more difficult as the number of sources and the number of users increase simultaneously.

The first difficulty is data source heterogeneity. Every golf course runs its own booking system, and those systems vary enormously in data format, API design, update frequency, and reliability. One course might expose a clean REST API that returns structured JSON with real-time availability. Another might require scraping a server-rendered HTML page that only updates every 15 minutes. A third might deliver data through a legacy SOAP interface with inconsistent field naming. Building a backend that treats all of these sources uniformly at the application layer while handling their individual quirks at the adapter layer is an architectural challenge that most aggregation platforms underestimate until they are 30 integrations deep and drowning in source-specific spaghetti code.

The second difficulty is data freshness under load. Tee time availability changes constantly as golfers book and cancel throughout the day. A slot that was open 90 seconds ago may be gone now. If the platform shows stale availability and a user taps "Book" only to learn the slot is already taken, the trust damage is immediate and lasting. Maintaining fresh data across dozens of sources polling simultaneously, while keeping API response times fast enough for a mobile experience that feels instant, requires careful orchestration of polling intervals, caching strategies, and cache invalidation logic that balances freshness against infrastructure cost.

The third difficulty is building for scale before scale arrives. Ryan needed an architecture that could grow from a handful of markets to nationwide coverage without requiring a re-engineering effort at each growth milestone. That means the data model, the polling infrastructure, the caching layer, the mobile architecture, and the admin tooling all need to be designed for a scale the product has not reached yet, while still being lean enough to operate efficiently at its current size. Over-engineering for scale you may never reach wastes money. Under-engineering for scale you are about to reach forces a painful and expensive rebuild at the worst possible moment (when the product is growing fastest and the team can least afford to stop shipping features). Finding the right position between those two outcomes is a judgment call that requires experience building products through multiple growth phases.


How We Solved It

We addressed the data source heterogeneity by designing the standardized adapter interface that abstracts every source-specific detail behind a common contract. Each adapter handles the translation between the source system's native format and the platform's canonical tee time schema, and the core application logic never touches source-specific code. Adding a new source means writing a thin adapter and a configuration entry, which is why the operations team can onboard new courses without engineering involvement.

We addressed the data freshness challenge by building the parallelized polling engine with Redis-backed caching that refreshes availability data on source-specific intervals calibrated to each source's actual update frequency. Sources that deliver near-real-time data get polled more frequently. Sources with lag in their own systems get polled at intervals that match their refresh cadence. Cache invalidation triggers on every successful poll cycle, and the consumer-facing API always serves from the cache layer so response times stay fast regardless of how many sources the backend is polling simultaneously.

We addressed the scale readiness challenge by making the core architectural decisions (the adapter pattern, the canonical schema, the configuration-driven onboarding, the shared mobile codebase, the infrastructure-as-configuration deployment on Heroku) early in the build based on where the product needed to be in 12 to 18 months rather than where it was at launch. The result is a platform where the operational cost of adding market number 50 is a fraction of what it cost to add market number 5, and the engineering team is free to build new features rather than re-plumbing the foundation every time the business grows.


The Takeaway

Fairway Finder is now a live, multi-market tee time discovery and booking platform with native iOS and Android apps, a full web experience, a parallelized backend ingesting real-time availability from dozens of course data sources, and an admin dashboard that lets the operations team expand into new markets without engineering dependencies. The architecture supports nationwide growth through configuration rather than re-engineering, and Ryan's team operates the business day to day with the technical foundation fully in place underneath them.

Algorithmic built Fairway Finder from a single-feature prototype into a production platform serving golfers across multiple U.S. markets. That is what we do. Founders come to us with a product vision and a technical problem they cannot afford to get wrong, and we deliver a system that runs, scales, and holds up under real-world conditions. Full-stack product builds, real-time data infrastructure, native mobile applications, and the kind of architecture that lets a three-person team operate like a thirty-person team.

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