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Erik Tjong Kim Sang

3×3 Multi-Blind · top 20.5% of 4,268 all-time · competing since January 2018 · 2018SANG01

Erik Tjong Kim Sang has been competing for 9 years. His best event is the 3×3 Multi-Blind: a personal-best single of 9 of 9 cubes · 55:25, set at Mental Breakdown Hoorn 2024, puts him in the top 20.5% of the 4,268 people who have ever been ranked in the event, and 10th in the Netherlands. Across 124 competitions since January 2018, he has put 1,045 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 16% around a typical one; 91% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 49.34 in January 2018 to 22.62, a 54% improvement. Erik has entered 124 competitions, more competitions than 99% of everyone who has ever competed.

3×3 Multi-Blind
best event — top 20.5% of 4,268 all-time
9 of 9 cubes · 55:25
signature single · Mental Breakdown Hoorn 2024
1,045
official solves on the record
16%
solve-to-solve spread · wider than 91% of the field

Standing, event by event

vs everyone ever ranked
EventPB singlePB averageAll-time standingNetherlands
3×3 Multi-Blind9 of 9 cubes · 55:25—
top 20.5%10 / 44
3×3 blindfolded1:42.862:15.48
top 27.7%31 / 132
4×4 blindfolded8:00.949:46.11
top 43.7%10 / 22
5×5 blindfolded16:02.0028:30.00
top 45.6%7 / 13
3×322.6227.16
top 47.0%1,230 / 2,294
4×41:12.701:23.82
top 49.5%485 / 1,000
5×52:23.442:50.98
top 62.7%318 / 532
6×65:58.146:21.93
top 90.5%194 / 205

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

Happy New Year Cubing Dordrecht 2018: 49.34Annuntia Open 2018: 44.90Assen Open 2018: 52.02Zonhoven Open 2018: 37.74Breda Open 2018: 35.94Veenendaal Open 2018: 39.95Franconia Open 2018: 36.52Dutch Nationals 2018: 30.26Dutch Open 2018: 36.53Meppel Open 2018: 34.77Rijswijk Open 2018: 36.90Kubkvarna Winter 2019: 28.83Haarlem Cubing 2019: 35.70Dutch Masters 2019: 30.22Belgian Solstice 2019: 26.46German Nationals 2019: 30.86Dutch Nationals 2019: 27.08Belgian Open 2019: 28.72Dutch Open 2019: 29.72Veenendaal Open 2020: 32.36Flen - Stora Manschetten 2021: 28.42Swedish Championship 2021: 24.27Norwegian Championship 2021: 24.85Dutch Spring 2022: 29.28Popular 'n Blind Flen 2022: 27.37Glasgow Open 2022: 24.42Angers ESEOpen 2022: 27.52Oslo Open 2022: 23.84Hoorn Open 2022: 26.74German Nationals 2022: 22.74Swiss Nationals 2022: 31.52Ganshoren Sunday Open 2022: 27.17Herrljunga Open 2022: 25.64Westfries Open 2022: 27.76Potablava Open 2022: 25.69Twixmas Jönköping 2022: 25.51Ikast Winter Cubing 2023: 25.25Alphen Cubing 2023: 31.35Herrljunga Open 2023: 22.62SveKub Super League II: Hässleholm 2023: 24.53Kampen Open 2023: 30.34Carquef'Open 2023: 25.00Ermelo Cubing A 2023: 27.69Capelle Cubing 2023: 27.43Hampshire Spring 2023: 27.87Dutch Open 2023: 25.21Oslo Open 2023: 26.33Slovenian Nationals 2023: 30.12Amsterdam Open 2023: 26.12Swisscubing Cup Final 2023: 25.21Dutch Nationals 2023: 31.66Villeneuve les Avignon Open 2023: 29.57Hampshire Winter 2024: 27.51Borlänge Open 2024: 31.31Festlige Terninger Østervang 2024: 26.61Leersum Algs 24 Hours in 2024: 25.42Götalandsmästerskapet 2024: 30.11Dutch Nationals 2024: 27.21Twixmas Flen 2024: 25.62Amore Amorebieta Open 2025: 27.36Start in Veenendaal 2025: 28.57Quick 'n Slick Meppel 2025: 28.71Eat Sleep Cube Repeat Leersum 2025: 28.79Couffouleux Open 2025: 30.10Rubik's Dutch Nationals 2025: 28.10Leersum Open 2026: 28.50Warm Up Lent 2026: 27.90Rubik's WCA European Championship 2026: 28.4122.6252.025 Jan 201816 Jul 2026

Best single per competition, 3×3. Faster is higher — the axis is the right way up.

The story so far

Competitions

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.

Next targets

  • A sub-1:30 3×3 blindfolded single — 2,810 people have one; it is 12.86 away.
  • A sub-5:00 4×4 blindfolded single — 474 people have one; it is 3:00.94 away.

Targets move as he improves.