People · United States
Justin Xu
3×3 · top 0.59% of 284,439 all-time · competing since June 2015 · 2015XUJU01
Justin Xu has been competing for 11 years. His best event is the 3×3: a personal-best single of 6.17, set at Mason Cube Challenge 2023, puts him in the top 0.59% of the 284,439 people who have ever been ranked in the event, and 397th in the United States. Until June 2011, no official 3×3 solve in the world had been that fast. Across 20 competitions since June 2015, he has put 684 official solves on the record across eleven events. Solve to solve, his 3×3 times vary about 14% around a typical one; 69% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 29.68 in June 2015 to 6.17, a 79% improvement. Justin has entered 20 competitions, more competitions than 97% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | United States | |
|---|---|---|---|---|---|
| 3×3 | 6.17 | 7.68 | top 0.59% | 397 / 59,724 | |
| 3×3 one-handed | 11.60 | 14.69 | top 2.5% | 401 / 15,683 | |
| 2×2 | 1.87 | 3.31 | top 4.0% | 1,565 / 40,951 | |
| Pyraminx | 3.48 | 6.10 | top 5.4% | 1,404 / 28,708 | |
| 4×4 | 33.95 | 39.45 | top 5.8% | 892 / 19,072 | |
| Skewb | 3.46 | 7.75 | top 7.5% | 1,160 / 18,907 | |
| 5×5 | 1:13.04 | 1:22.96 | top 13.8% | 1,058 / 9,401 | |
| 6×6 | 2:36.56 | 2:49.71 | early days — 3 solves | 1,026 / 4,196 | |
| Square-1 | 25.36 | 28.62 | top 39.9% | 2,588 / 6,743 | |
| Megaminx | 1:56.57 | 2:14.88 | top 43.9% | 3,206 / 7,841 | |
| 3×3 blindfolded | 3:40.30 | — | early days — 2 solves | 1,325 / 2,092 |
Percentile against all competitors ever ranked in each event, a fairer measure than raw rank, because the pools differ by a factor of ten.
The line so far
Best single per competition, 3×3. Faster is higher — the axis is the right way up.
The story so far
- 2 Apr 2023Four personal bests in one day at Bluegrass Bash 2023.
- 30 Mar 2019Three personal bests in one day at Cubing For Kyle 2019.
- 18 May 2018Five personal bests in one day at CubingUSA Great Lakes Championship 2018.
- 7 Jul 2017First sub-20 3×3: 9.05 at CubingUSA Nationals 2017.
- 7 Jul 2017First sub-15 3×3: 9.05 at CubingUSA Nationals 2017.
- 7 Jul 2017First sub-10 3×3: 9.05 at CubingUSA Nationals 2017.
Competitions
- Cardinal Country KY Cubing 2026 · 11 Jul 2026
- Oldham County Summer 2026 · 20 Jun 2026
- Oldham County Fall 2025 · 18 Oct 2025
- Rubik's WCA World Championship 2025 · 3 Jul 2025
- Oldham County Spring 2025 · 22 Mar 2025
- Return of the Ville KY 2025 · 25 Jan 2025
- CubingUSA Great Lakes Championship 2024 · 4 Oct 2024 — 2 personal bests set
- Rubik's WCA North American Championship 2024 · 18 Jul 2024
- Mason Cube Challenge 2023 · 12 Aug 2023 — 1 personal best set
- MoreHead-to-Head 2023 · 3 Jun 2023
- Kentucky Horse Park 2023 · 20 May 2023 — 2 personal bests set
- Bluegrass Bash 2023 · 2 Apr 2023 — 4 personal bests set
- Bluegrass Fall 2022 · 24 Sep 2022 — 1 personal best set
- Cubing For Kyle 2019 · 30 Mar 2019 — 3 personal bests set
- Music City Speedsolving 2018 · 31 Aug 2018 — 1 personal best set
- Cardinal Bird Fiesta 2018 · 24 Jun 2018 — 2 personal bests set
- CubingUSA Great Lakes Championship 2018 · 18 May 2018 — 5 personal bests set
- Music City Fall 2017 · 15 Sep 2017 — 1 personal best set
- CubingUSA Nationals 2017 · 7 Jul 2017 — 3 personal bests set
- Indiana 2015 · 12 Jun 2015
Reading this page: a single is one solve's time · an average is the middle three of five solves, best and worst discarded · a PB is a personal best · a DNF (did not finish) is an attempt with no valid result: a popped piece, an unsolved face, an over-limit memorisation · top X% compares against everyone ever ranked in that event, which is fairer than raw rank because event pools differ tenfold.
The circuit
The people whose scorecards keep turning up next to his.
- Luke Garrett — met in 94 rounds, finished ahead twice
- Luke Griesser — met in 90 rounds, finished ahead 16 times
- Garrett Hadaway — met in 82 rounds, finished ahead 51 times
Next targets
- A sub-6 3×3 single — 1,376 people have one; it is 0.17 away.
- A sub-10 3×3 one-handed single — 779 people have one; it is 1.60 away.
Targets move as he improves.