People · Republic of Korea
Theodora Lynn Cha (차린)
3×3 · top 0.43% of 288,433 all-time · competing since October 2023 · 2023CHAT16
Theodora Lynn Cha (차린) has been competing for 3 years. Her best event is the 3×3: a personal-best single of 5.88, set at Stevenage June 2025, puts her in the top 0.43% of the 288,433 people who have ever been ranked in the event, and 30th in Republic of Korea. Until June 2011, no official 3×3 solve in the world had been that fast. Across 11 competitions since October 2023, she has put 374 official solves on the record across ten events. Solve to solve, her 3×3 times vary about 15% around a typical one; 81% of the 36,406 competitors with ten or more counted rounds hold a tighter spread. That figure sets aside her 6 DNFs. Her 3×3 best has come down from 14.48 in October 2023 to 5.88, a 59% improvement. Theodora has entered eleven competitions, more competitions than 93% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Republic of Korea | |
|---|---|---|---|---|---|
| 3×3 | 5.88 | 8.66 | top 0.43% | 30 / 4,390 | |
| Pyraminx | 1.56 | 3.58 | top 0.5% | 12 / 1,294 | |
| Megaminx | 47.14 | 56.97 | top 3.9% | 28 / 526 | |
| 2×2 | 2.24 | 3.67 | top 6.6% | 185 / 2,334 | |
| 4×4 | 38.68 | 42.10 | top 10.6% | 207 / 1,316 | |
| Clock | 7.15 | 10.78 | top 11.4% | 75 / 541 | |
| Skewb | 5.69 | 9.14 | top 23.4% | 242 / 874 | |
| 3×3 one-handed | 23.14 | 25.57 | top 29.2% | 389 / 981 | |
| 5×5 | 1:35.67 | 1:53.65 | top 32.1% | 287 / 725 | |
| Square-1 | 22.78 | 45.27 | top 34.3% | 159 / 383 |
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
- 8 Nov 2025Three personal bests in one day at Stevenage 10th Anniversary 2025.
- 7 Jun 2025Four personal bests in one day at Stevenage June 2025.
- 25 Jan 2025Three personal bests in one day at DIA EH Cube for Change Dubai A 2025.
- 25 Jul 2024First sub-10 3×3: 9.83 at Rubik's WCA European Championship 2024.
- 25 Jul 2024Four personal bests in one day at Rubik's WCA European Championship 2024.
- 22 Jun 2024Four personal bests in one day at Raffles World Academy Dubai 2024.
Competitions
- Stevenage March 2026 · 14 Mar 2026
- Korean Championship 2025 · 27 Dec 2025 — 1 personal best set
- Stevenage 10th Anniversary 2025 · 8 Nov 2025 — 3 personal bests set
- Stevenage June 2025 · 7 Jun 2025 — 4 personal bests set
- DIA EH Cube for Change Dubai A 2025 · 25 Jan 2025 — 3 personal bests set
- JCC & Q8speedcubing Nationals 2024 · 6 Sep 2024 — 2 personal bests set
- Rubik's WCA European Championship 2024 · 25 Jul 2024 — 4 personal bests set
- Raffles World Academy Dubai 2024 · 22 Jun 2024 — 4 personal bests set
- Dubai Open 2024 · 27 Apr 2024 — 3 personal bests set
- Amore Open 2024 · 17 Feb 2024 — 3 personal bests set
- Beskid Cubing 2023 · 14 Oct 2023 — 1 personal best set
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 her.
- Taehoon Yoo — met in 32 rounds, finished ahead twice
- Harry Allen — met in 28 rounds, finished ahead 9 times
- Oliver Hutchings — met in 28 rounds, finished ahead 9 times
Next targets
- A sub-5 3×3 single — 355 people have one; it is 0.88 away.
- A sub-1 Pyraminx single — 49 people have one; it is 0.56 away.
Targets move as she improves.