People · Philippines
Zian Kiero Nichole Callao
2×2 · top 2.1% of 186,767 all-time · competing since November 2015 · 2015CALL05
Zian Kiero Nichole Callao has been competing for 11 years. His best event is the 2×2: a personal-best single of 1.49, set at Cuber's Cafe Open 2019, puts him in the top 2.1% of the 186,767 people who have ever been ranked in the event, and 51st in the Philippines. Until November 2008, no official 2×2 solve in the world had been that fast. Across 17 competitions since November 2015, he has put 301 official solves on the record across nine events. Solve to solve, his 3×3 times vary about 13% around a typical one, steadier than 51% of the 35,811 competitors with ten or more counted rounds. His 3×3 best has come down from 12.05 in November 2015 to 10.10, a 16% improvement. Zian has entered 17 competitions, more competitions than 96% of everyone who has ever competed.
Standing, event by event
vs everyone ever ranked| Event | PB single | PB average | All-time standing | Philippines | |
|---|---|---|---|---|---|
| 2×2 | 1.49 | 3.36 | top 2.1% | 51 / 4,257 | |
| 3×3 | 10.10 | 11.24 | top 7.8% | 809 / 6,270 | |
| 3×3 one-handed | 18.78 | 24.78 | top 17.2% | 421 / 2,440 | |
| Megaminx | 1:19.48 | 1:33.72 | top 21.4% | 159 / 690 | |
| 4×4 | 48.40 | 58.56 | top 22.6% | 579 / 2,135 | |
| 3×3 blindfolded | 2:12.32 | 2:58.15 | top 37.4% | 105 / 274 | |
| 6×6 | 3:27.82 | 3:37.15 | early days — 3 solves | 191 / 298 | |
| Square-1 | 34.47 | — | early days — 2 solves | 219 / 374 | |
| 3×3 Multi-Blind | 4 of 5 cubes · 45:15 | — | early days — 2 solves | 42 / 72 |
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
- 30 Nov 2019Three personal bests in one day at Cuber's Cafe Open 2019.
- 24 Jun 2017Three personal bests in one day at Tagum City Open 2017.
- 13 Aug 2016Three personal bests in one day at Mindanao Championship 2016.
- 15 Nov 2015First competition: Clash Of Cubers Davao 2015. A 16.03 3×3 single to start from.
- 15 Nov 2015First sub-15 3×3: 13.25 at Clash Of Cubers Davao 2015.
Competitions
- Mindanao Championship 2025 · 14 Dec 2025
- Tagum City Open 2024 · 15 Jun 2024
- Tagum Speedcubing Masters 2023 · 5 Mar 2023
- Cuber's Cafe Open 2019 · 30 Nov 2019 — 3 personal bests set
- Tagum City Open 2019 · 10 Aug 2019
- Visayas Championship 2019 · 5 Jul 2019
- Mindanao Championship 2019 · 31 May 2019
- Mindanao Championships 2018 · 21 Apr 2018 — 1 personal best set
- Davao Year End Open 2017 · 10 Dec 2017 — 1 personal best set
- Davao del Sur Open 2017 · 4 Nov 2017 — 1 personal best set
- Mindanao Championships 2017 · 19 Aug 2017
- Tagum City Open 2017 · 24 Jun 2017 — 3 personal bests set
- Kubo Open 2016 · 10 Dec 2016 — 1 personal best set
- Mindanao Championship 2016 · 13 Aug 2016 — 3 personal bests set
- Clash Of Cubers II 2016 · 28 May 2016 — 2 personal bests set
- Summer Speed Cube Olympics 2016 · 20 Apr 2016 — 2 personal bests set
- Clash Of Cubers Davao 2015 · 15 Nov 2015 — 2 personal bests 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 his.
- Justin John Navarro — met in 50 rounds, finished ahead 16 times
- Albert Philip Bulao — met in 42 rounds, finished ahead 12 times
- Lester Doyugan Jr. — met in 41 rounds, finished ahead 14 times
Next targets
- A sub-1 2×2 single — 1,032 people have one; it is 0.49 away.
- A sub-10 3×3 single — 21,172 people have one; it is 0.10 away.
Targets move as he improves.