Team 5588Z (Happy Builder) from Happy Builder, Minato City, Tokyo competes in VEX VIQRC. In the 25–26 Rapid Relay season they have a skills score of 34 ranked #3838 worldwide.
| Date | Event | Qual Rank | High Scores | Awards | |
|---|---|---|---|---|---|
| 02/14/26 National | Japan VIQRC ES National Regional Championship: MIX & MATCH 2025-2026 Season | #2 | 85 / 77 / 75 | Teamwork Champion Award | |
| 12/07/25 Other | Girl Powered at Showa Women's University 2025: Workshop & Scrimmage ES/MS Blended | #2 | 230 / 108 / 34 | — | |
| 10/13/25 Other | KEIO STEM Robotics GRAND-PRIX 2025: MIX & MATCH ES/MS Blended | #7 | 80 / 51 / 47 | — |