Skip to content
Clark Hayashi

Work

Public projects focused on turning real questions into decisions. The statuses are honest: finished work leads, work in progress is labeled, and confidential employer work stays in Experience with approved public proof only.

01

Operations Analytics 2026

Intramural Sports Participation Analysis

Eight seasons of participation data, turned into dashboards and a set of recommendations for scheduling, marketing, and retention.

8 seasons · 4,169 player-years · 648 played in 2025

Excel · Tableau · Stakeholder Reporting

Analysis complete · recommendations proposed Bar chart from the analysis: students who played more games in their first year returned at higher rates the following year, rising from 23 percent to 84 percent.
02

Marketing Strategy 2026

Growing Without Losing Home

A solo, independent mainland growth strategy for Zippy's: Seattle-first market entry, stage-gated expansion, and a speculative campaign built around the orders people remember.

Solo project · 2024 thesis rebuilt in 2026

Marketing Strategy · Consumer Insight · Campaign Design

Completed · independent case study A Zippy's Korean Fried Chicken plate lunch with rice and macaroni salad, the order the speculative campaign was built around.
03

Analytics + Data Fall 2023

Seattle Building Permit Analysis

Interactive Tableau dashboard on Seattle building permit data, built with an Applied Analytics SU team. Analyzed trends in construction activity and permitting, then presented findings to the club. Live on Tableau Public.

Team of 9 analysts · live, interactive dashboard

Tableau · Team Case Study · Public Data

Completed · view live The team's Tableau dashboard, titled Seattle Building Permits Dashboard, showing projects completed per year from 2005 to 2022 with a peak in 2017.
04

Analytics + Data 2025

Finding the Best Value Stays in Hawai'i

Airbnb vs. hotel value across the Hawaiian islands: 29,011 Inside Airbnb listings, island and neighborhood pricing, ratings, and zoning context, built into an interactive Tableau dashboard with a course partner.

29,011 listings analyzed · 30 neighborhoods · 14-worksheet workbook

Tableau · Data Visualization · Team Case Study

Completed · team project Tableau dashboard comparing Airbnb and hotel pricing across the Hawaiian islands, with island density maps and average price by island and neighborhood.
05

Analytics + Data 2026

Tokyo Airbnb Pricing & Marketplace Analysis

Pricing distribution, submarket trends, and host recommendations from 25,000+ Tokyo Airbnb listings, analyzed in Python and visualized in Tableau.

25,000+ listings analyzed

Python · Tableau · Pricing Analytics

Case study · in progress
06

Visual Communication 2026

Clark's Reading Notes

A lightweight, searchable reading shelf for honest notes on books I finished, paused, or plan to revisit. Built as a portable static site with local assets and no third-party JavaScript.

11 books · search and status filters · 0 dependencies

Vanilla JavaScript · Information Design · Static Web

Live · personal project The Clark Reads site: a serif headline reading 'Books I read. What I actually got from them.' beside three book covers, above the start of the reading list.