People · South Africa
Michael Kahumba
2×2 · top 9.8% of 186,767 all-time · competing since November 2023 · 2023KAHU01
Michael Kahumba has been competing for 3 years. His best event is the 2×2: a personal-best single of 2.59, set at Benoni May Madness 2026, puts him in the top 9.8% of the 186,767 people who have ever been ranked in the event, and 93rd in South Africa. Until February 2008, no official 2×2 solve in the world had been that fast. Across 11 competitions since November 2023, he has put 388 official solves on the record across eight events. Solve to solve, his 3×3 times vary about 15% around a typical one; 84% of the 35,811 competitors with ten or more counted rounds hold a tighter spread. His 3×3 best has come down from 21.79 in November 2023 to 14.07, a 35% improvement. Michael 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 | South Africa | |
|---|---|---|---|---|---|
| 2×2 | 2.59 | 4.56 | top 9.8% | 93 / 1,510 | |
| Pyraminx | 5.75 | 10.18 | top 18.1% | 133 / 946 | |
| Skewb | 5.06 | 9.63 | top 18.6% | 67 / 438 | |
| 3×3 | 14.07 | 16.52 | top 21.2% | 262 / 2,164 | |
| 3×3 one-handed | 27.99 | 40.79 | top 41.9% | 123 / 467 | |
| 4×4 | 1:28.91 | 2:02.46 | top 62.8% | 223 / 491 | |
| Megaminx | 2:50.86 | 3:56.31 | top 70.6% | 143 / 266 | |
| Square-1 | 47.51 | 1:13.09 | top 73.7% | 91 / 118 |
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
- 26 Apr 2025Three personal bests in one day at CubingZA Nationals 2025.
- 8 Mar 2025First sub-15 3×3: 14.78 at Cubestuff Challenge Centurion Hotel Q1 2025.
- 8 Mar 2025Three personal bests in one day at Cubestuff Challenge Centurion Hotel Q1 2025.
- 20 Jul 2024Four personal bests in one day at Cubestuff Challenge Centurion Q3 2024.
- 20 Apr 2024First sub-20 3×3: 19.63 at Cubestuff Challenge Q2 2024.
- 20 Apr 2024Three personal bests in one day at Cubestuff Challenge Q2 2024.
Competitions
- Cubestuff Grand Challenge - The Leonardo 2026 · 20 Jun 2026 — 2 personal bests set
- Benoni May Madness 2026 · 17 May 2026 — 2 personal bests set
- Beginner & Blind Benoni 2026 · 29 Mar 2026
- Beginner & Blind Johannesburg 2025 · 17 May 2025
- CubingZA Nationals 2025 · 26 Apr 2025 — 3 personal bests set
- CuBeaulieu Craze Comeback 2025 · 29 Mar 2025
- Cubestuff Challenge Centurion Hotel Q1 2025 · 8 Mar 2025 — 3 personal bests set
- Benoni Cubing Comeback 2024 · 31 Aug 2024 — 2 personal bests set
- Cubestuff Challenge Centurion Q3 2024 · 20 Jul 2024 — 4 personal bests set
- Cubestuff Challenge Q2 2024 · 20 Apr 2024 — 3 personal bests set
- Pretoria Spring Morning 2023 · 25 Nov 2023 — 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.
- Marike Faught — met in 76 rounds, finished ahead 11 times
- Juandré Jacobs — met in 74 rounds, finished ahead 12 times
- Ian Luies — met in 69 rounds, never finished ahead
Next targets
- A sub-2 2×2 single — 8,848 people have one; it is 0.59 away.
- A sub-5 Pyraminx single — 17,019 people have one; it is 0.75 away.
Targets move as he improves.