Sachio Iwasaki (岩崎幸生)

Country WCA ID Gender Competitions Completed Solves
Japan 2009IWAS01 Male 26 709

Current Personal Records

Event NR CR WR Single Average WR CR NR
3x3x3 Cube 118 2527 6627 9.92 11.52 5106 1942 90
2x2x2 Cube 72 2416 7974 2.75 4.01 4927 1519 55
4x4x4 Cube 124 3203 7987 48.30 52.47 6513 2616 110
5x5x5 Cube 53 941 2446 1:18.40 1:33.40 3361 1301 71
6x6x6 Cube 42 812 2315 2:54.33 3:05.62 2247 808 45
7x7x7 Cube 42 872 2400 4:37.47 4:45.56 2210 806 36
3x3x3 Blindfolded 134 1456 3875 3:32.03
3x3x3 Fewest Moves 96 1056 3658 43
3x3x3 One-Handed 47 1644 4084 17.27 22.17 4645 1941 52
Clock 12 170 499 7.83 9.22 431 142 12
Megaminx 66 1240 3648 1:30.31 1:37.32 3272 1114 59
Pyraminx 37 906 2856 3.66 6.46 3749 1304 57
Square-1 42 618 2220 18.44 25.66 2311 658 43

Medal Collection

Gold Silver Bronze
1 7 5
Competition Round Place Single Average Solves
3x3x3 Cube
UT Open 2015 Second round 18 12.25 13.53 13.5312.7118.3614.3612.25
First round 26 11.53 15.08 11.5317.6315.4414.9714.83
World Rubik's Cube Championship 2015 Second round 77 11.57 13.35 13.9113.6611.5714.4612.48
First round 104 12.92 14.42 14.2114.9314.1312.9216.16
Tokyo Pyraminx Open 2015 First round 11 12.69 13.44 18.0612.6914.2813.2812.75
Melaka Open 2014 Final 5 10.86 12.15 11.8310.8613.5014.1611.13
Second round 10 13.97 15.05 16.5514.1613.9714.4716.53
First round 9 11.09 12.83 13.1112.5812.8117.5011.09
Kaohsiung Summer Open 2014 Second round 16 11.47 14.38 18.9114.6111.4713.9014.63
First round 15 12.79 14.06 14.4513.6514.0812.7917.10
Hsinchu Spring Open 2014 Second round 11 9.92 12.35 15.9113.299.9211.0112.76
First round 15 12.13 14.51 18.3715.8112.1313.3414.39
UT Open 2013 Final 8 11.90 12.67 17.0012.4013.5211.9012.08
Second round 7 10.68 11.52 11.5910.6812.1813.3810.80
First round 14 11.81 13.21 14.3311.8111.9713.3416.31
Kawasaki Autumn 2013 Final 7 12.05 14.85 14.9012.0513.8016.1115.84
Kawasaki Open 2013 Final 13 12.34 16.38 15.0917.8312.3420.6616.21
Kansai Open 2013 First round 27 12.53 16.08 12.5316.6117.5014.5517.09
Rabbit And Turtle 2013 Final 14 12.84 15.55 16.9418.3412.8413.9115.81
First round 13 13.05 14.82 15.7516.4713.5915.1113.05
Japan Open 2012 Second round 19 12.69 14.38 14.5817.0913.6612.6914.90
First round 17 12.03 14.07 14.7113.9626.5813.5512.03
Cube Camp in Kanazawa 2012 Second round 11 10.53 12.53 20.9313.7810.5311.9011.91
First round 13 12.77 13.65 14.4612.7713.2113.4714.27
Kawasaki Open 2012 First round 17 13.06 14.20 13.9616.9713.2813.0615.36
Rabbit and Turtle 2012 Final 10 11.43 13.10 11.4313.5213.9111.8615.25
Second round 14 13.47 14.43 14.9113.5913.4715.0514.78
First round 14 14.36 15.02 14.7215.2716.5815.0814.36
Matsudo Spring 2012 Second round 20 13.86 15.97 17.5616.2817.9014.0813.86
First round 18 13.53 14.41 14.9114.0514.2717.6613.53
Tsukuba 2012 Second round 16 10.71 14.37 15.1315.4313.9414.0510.71
First round 14 11.83 14.37 16.2816.7113.1511.8313.68
UT Open 2011 First round 15 13.03 14.17 19.6813.0313.1814.5814.75
Matsudo Autumn 2011 First round 19 12.84 16.71 18.0312.8415.7716.8417.52
Japan Open 2009 First round 61 25.84 31.85 32.9137.0035.3827.2725.84
2x2x2 Cube
Kawasaki Autumn 2013 Final 7 5.66 5.89 5.836.007.435.665.84
Kansai Open 2013 Final 7 4.18 4.82 4.784.184.475.215.36
First round 7 3.58 5.16 4.933.585.095.525.47
Rabbit And Turtle 2013 Final 6 4.02 5.07 4.886.345.884.444.02
Japan Open 2012 First round 19 4.34 5.82 7.065.504.904.348.36
Cube Camp in Kanazawa 2012 Final 4 3.21 4.56 4.696.314.063.214.93
First round 6 2.75 4.01 2.753.116.004.334.58
Kanto Open 2012 Final 12 4.47 5.73 4.475.535.186.477.36
First round 8 3.15 4.70 5.055.213.153.935.13
Kawasaki Open 2012 Final 5 3.93 4.44 4.214.163.934.967.43
Matsudo Spring 2012 Second round 7 2.78 4.71 4.662.783.755.935.72
First round 9 4.18 4.75 5.114.934.189.964.21
Tsukuba 2012 First round 10 4.38 5.51 6.114.3817.564.565.86
4x4x4 Cube
UT Open 2015 Final 14 48.30 52.47 48.3053.1953.4050.811:02.63
World Rubik's Cube Championship 2015 Second round 70 51.60 55.77 1:00.0553.3956.6557.2651.60
First round 77 53.33 57.22 59.2158.9256.3956.3453.33
Melaka Open 2014 Final 7 54.88 56.46 55.9456.2557.181:03.4054.88
First round 9 52.81 58.87 1:13.8858.211:04.5252.8153.88
Kaohsiung Summer Open 2014 First round 13 48.97 53.49 54.83DNF52.3848.9753.27
Hsinchu Spring Open 2014 First round 14 52.91 58.07 59.531:00.331:05.2952.9154.34
UT Open 2013 First round 11 53.41 1:01.91 1:08.301:02.111:05.1658.4653.41
Japan Contest 2012 Second round 9 51.34 57.87 1:02.1851.341:05.5355.7155.72
First round 9 54.22 58.90 57.1554.2258.431:01.131:06.28
Japan Open 2012 First round 17 52.52 57.35 52.5257.6855.5858.7858.81
Cube Camp in Kanazawa 2012 First round 20 1:01.00 1:04.11 1:02.911:06.831:18.271:01.001:02.58
Kawasaki Open 2012 First round 9 50.28 55.71 54.5957.6555.0850.2857.47
Matsudo Spring 2012 Second round 22 1:02.52 1:08.74 1:13.971:02.521:12.461:07.271:06.50
First round 23 59.81 1:07.40 1:07.4159.811:19.461:02.131:12.65
Tsukuba 2012 First round 17 59.16 1:03.54 1:00.811:06.031:04.341:05.4759.16
UT Open 2011 Final 22 1:03.90 1:08.49 1:16.581:05.661:03.901:08.471:11.33
Matsudo Autumn 2011 First round 11 59.55 1:02.66 1:02.1659.551:00.831:10.211:05.00
5x5x5 Cube
World Rubik's Cube Championship 2015 First round 36 1:32.68 1:35.52 1:35.801:32.681:51.841:32.731:38.03
Melaka Open 2014 Final 6 1:34.66 1:39.25 1:47.091:43.281:36.901:34.661:37.56
First round 4 1:23.46 1:35.54 1:35.651:23.461:51.271:31.751:39.21
Kaohsiung Summer Open 2014 Final 6 1:23.68 1:33.40 1:31.361:37.521:42.131:23.681:31.33
First round 6 1:29.44 1:34.06 1:31.051:29.441:36.441:34.681:39.33
Hsinchu Spring Open 2014 First round 7 1:25.76 1:37.09 1:41.991:35.291:42.801:34.001:25.76
Kansai Open 2013 Second round 11 1:30.83 1:35.49 1:37.001:31.961:30.831:37.501:42.47
First round 8 1:18.40 1:34.46 1:43.311:46.161:23.581:18.401:36.50
Japan Contest 2012 Final 6 1:34.71 1:41.66 1:38.651:43.861:58.131:34.711:42.46
Second round 6 1:30.02 1:35.29 1:42.471:33.131:39.031:30.021:33.72
First round 7 1:33.28 1:50.10 1:55.841:52.111:53.751:33.281:44.43
Japan Open 2012 Final 11 1:32.61 1:46.85 1:42.272:17.551:32.611:55.561:42.71
First round 10 1:37.02 1:40.91 1:37.611:39.861:52.361:37.021:45.27
Cube Camp in Kanazawa 2012 First round 29 1:50.30 DNF 1:50.302:04.27DNSDNSDNS
East Japan Big Cubes 2012 Second round 9 1:42.31 1:51.43 1:57.441:49.551:42.311:58.091:47.30
First round 9 1:39.40 1:50.36 1:50.061:47.651:56.651:53.381:39.40
Kawasaki Open 2012 Final 6 1:35.47 1:39.15 1:40.521:36.691:40.251:47.801:35.47
First round 6 1:40.22 1:45.21 1:50.661:44.271:40.221:40.691:58.13
Matsudo Spring 2012 Second round 11 1:39.22 1:53.66 1:39.221:42.801:52.282:05.902:09.15
First round 8 1:34.63 1:42.84 1:49.911:34.631:54.281:43.531:35.08
Tsukuba 2012 Final 11 1:38.69 1:47.71 1:46.971:44.051:56.521:52.111:38.69
Matsudo Autumn 2011 First round 7 1:41.50 1:50.87 1:42.332:00.652:03.811:41.501:49.64
6x6x6 Cube
Japan Open 2012 Final 6 2:54.33 3:08.01 3:18.253:11.442:54.33
East Japan Big Cubes 2012 Final 3 2:59.69 3:05.62 3:04.363:12.802:59.69
Kansai Open 2012 Final 6 3:09.66 3:37.14 3:55.503:46.253:09.66
7x7x7 Cube
Kansai Open 2013 Final 4 4:37.47 4:45.56 4:37.474:54.584:44.63
Japan Open 2012 Final 5 4:45.11 4:57.45 4:45.115:18.064:49.19
East Japan Big Cubes 2012 Final 4 4:48.50 4:53.67 4:48.504:50.755:01.75
Kansai Open 2012 Final 6 5:20.84 5:25.49 5:32.185:23.465:20.84
3x3x3 Blindfolded
Japan Open 2012 First round 10 DNF DNF DNFDNFDNF
Cube Camp in Kanazawa 2012 First round 7 3:45.40 DNF DNF3:45.40DNF
Kanto Open 2012 Final 8 3:32.03 DNF DNFDNF3:32.03
East Japan Big Cubes 2012 First round 17 DNF DNF DNFDNFDNF
Kansai Open 2012 Final 13 DNF DNF DNFDNFDNS
Waseda Brain Challenge 2012 First round 15 DNF DNF DNFDNFDNF
3x3x3 Fewest Moves
Cube Camp in Kanazawa 2012 Final 10 43 43DNF
Waseda Brain Challenge 2012 Final 13 47 DNF47
3x3x3 One-Handed
World Rubik's Cube Championship 2015 Second round 59 23.82 26.49 23.8225.3627.3026.8027.48
First round 64 23.02 25.23 23.0223.6327.8024.2630.49
Melaka Open 2014 Final 5 18.81 23.84 26.0332.3323.9321.5518.81
First round 7 24.59 26.38 28.1624.9426.0531.1124.59
Kaohsiung Summer Open 2014 Final 8 23.15 24.88 29.3125.8123.1923.1525.65
First round 9 21.21 22.89 23.9121.2122.5922.6223.46
Hsinchu Spring Open 2014 Final 7 19.01 22.82 22.8425.6119.0123.8321.79
First round 7 20.92 22.17 21.6327.2520.9223.0321.86
Japan Contest 2012 Second round 9 18.40 25.66 29.8825.1128.7718.4023.11
First round 9 21.77 25.43 21.7725.6127.1526.9423.75
Japan Open 2012 First round 13 18.27 22.86 24.6318.2723.0226.1120.93
Cube Camp in Kanazawa 2012 First round 10 17.27 24.27 23.2226.8317.2727.8022.77
Kawasaki Open 2012 Final 11 22.00 23.04 22.6322.6522.0027.2523.83
Matsudo Spring 2012 First round 13 21.55 25.46 31.8328.6321.5524.1623.58
Tsukuba 2012 Final 7 20.97 26.67 20.9730.1924.1831.4125.63
UT Open 2011 Final 9 19.93 25.02 23.2533.0019.9323.4128.40
Clock
World Rubik's Cube Championship 2015 First round 20 9.72 14.92 11.05DNF9.7219.5314.19
Melaka Open 2014 Final 2 9.69 11.00 12.349.6912.0510.1910.77
Kaohsiung Summer Open 2014 Final 4 7.83 9.22 7.8311.938.848.4310.38
First round 5 10.16 11.13 10.8612.0210.5010.16DNF
Kansai Open 2013 Final 2 8.21 10.24 10.098.2110.949.68DNF
Megaminx
World Rubik's Cube Championship 2015 First round 45 1:43.38 1:51.39 1:54.251:53.052:04.531:46.861:43.38
Kansai Open 2013 Final 4 1:30.31 1:37.32 1:53.531:31.001:38.271:42.681:30.31
Japan Open 2012 Final 6 1:33.58 1:44.40 1:52.531:35.581:33.582:12.111:45.08
East Japan Big Cubes 2012 Final 6 1:41.03 1:47.87 1:49.311:41.031:41.301:54.721:53.00
Kansai Open 2012 First round 8 2:06.65 2:18.41 2:31.442:23.912:06.652:15.362:15.96
Pyraminx
Rabbit And Turtle 2013 Final 6 6.31 8.03 6.319.087.847.1810.18
UT Open 2012 Final 4 5.41 8.04 5.416.408.6911.199.03
Japan Open 2012 Final 5 7.50 8.28 8.537.507.618.698.77
First round 2 5.38 6.46 5.385.446.587.777.36
Cube Camp in Kanazawa 2012 Final 2 3.66 7.31 9.539.276.903.665.75
First round 3 5.72 7.89 7.055.728.967.788.84
Kanto Open 2012 Final 4 6.11 7.49 6.116.729.4711.726.27
Kansai Open 2012 Final 8 6.16 9.13 9.566.168.5012.419.33
First round 5 6.36 7.98 14.187.387.536.369.03
Japan Open 2009 Final 6 5.66 11.76 5.668.908.61DNF17.77
Square-1
World Rubik's Cube Championship 2015 Final 15 21.91 26.09 55.5822.6921.9124.0331.56
First round 16 20.55 27.44 40.3032.3427.6722.3220.55
Tokyo Pyraminx Open 2015 Final 6 18.44 27.86 40.8118.4428.6626.2228.69
Melaka Open 2014 Final 3 21.09 26.97 21.41DNF27.8031.6921.09
Kaohsiung Summer Open 2014 Final 3 21.66 25.78 21.6628.8330.8222.4126.09
First round 2 21.83 25.66 32.3625.5221.8328.8422.61
Japan Open 2012 Final 6 31.03 36.80 39.5531.0339.5341.5331.31
Cube Camp in Kanazawa 2012 Final 5 27.72 DNF DNF27.72DNF33.3032.16
Kansai Open 2012 First round 6 31.41 38.24 37.6138.1931.4138.9147.97
4x4x4 Blindfolded
Melaka Open 2014 Final 1 DNF DNF DNFDNFDNF
Kansai Open 2013 Final 3 DNF DNF DNFDNFDNF
3x3x3 With Feet
World Rubik's Cube Championship 2015 Final 9 57.52 1:04.72 57.521:13.061:03.57
First round 10 55.16 1:07.78 1:08.4655.161:19.72
Melaka Open 2014 Final 1 49.08 1:29.77 2:22.901:17.3449.08
Kansai Open 2013 Final 3 42.96 46.41 46.3049.9742.96
UT Open 2012 Final 2 40.93 51.02 40.9353.5558.58
Japan Open 2012 Final 3 51.63 53.49 52.7851.6356.05
Cube Camp in Kanazawa 2012 Final 2 48.19 54.54 48.191:00.5854.84
Kawasaki Open 2012 Final 5 54.65 1:02.33 1:04.521:07.8154.65
Kansai Open 2012 Final 2 57.10 1:01.84 1:01.561:06.8557.10
Japan Open 2009 Final 2 1:56.22 2:13.07 2:38.311:56.222:04.68

National Championship Podiums

Event Place Single Average Solves
Japan Open 2012
3x3x3 With Feet 3 51.63 53.49 52.7851.6356.05
Japan Open 2009
3x3x3 With Feet 2 1:56.22 2:13.07 2:38.311:56.222:04.68