Mike Field

Name: Mike Field

Region: New Zealand

Competitions: 16

WCA ID:

2017FIEL01

Gender: Male

Career: 2017.03.18 - 2024.04.21

2023 Annual Summary

Current Personal RecordsBattle

Event	NR	CR	WR	Single	Average	WR	CR	NR	Solves/Attempts
3x3x3 Cube	584	3412	79057	18.92	21.40	70958	2955	529	109/110
2x2x2 Cube	686	3866	72097	5.99	7.49	60051	3126	587	63/65
4x4x4 Cube	396	1913	43568	1:35.01	1:42.16	35894	1559	369	44/49
5x5x5 Cube	238	1125	25597	3:14.35					17/18
6x6x6 Cube	112	559	12285	7:52.27					1/4
3x3x3 One-Handed	358	1799	44006	49.77	1:03.31	40759	1606	350	21/28
Clock	67	252	5110	11.04	13.23	4979	246	66	36/40
Megaminx	224	1107	23361	4:22.06					1/6
Pyraminx	412	2075	37919	8.35	13.39	45855	2569	486	49/50
Skewb	291	1477	26620	9.09	16.84	34546	1957	357	37/40

Sum of Ranks

	Sum of NR	NR	Sum of CR	CR	Sum of WR	WR
Single	3901	385	20047	1924	423729	40590
Average	3518	430	17027	2102	365917	44085

By Event
By Competition

Competition	Round	Place	Best	Average	Detail
3x3x3 Cube
NZ South Island Champ 2024	Second round	41	18.92	24.60	18.92 24.74 23.77 25.29 26.72
	First round	37	19.27	21.40	21.90 22.19 19.27 20.11 26.54
Lyttelton Summer 2024	First round	30	23.26	26.08	23.26 27.51 27.81 25.47 25.27
Lyttelton Spring 2023	Second round	29	19.84	22.64	22.91 DNF 19.84 23.11 21.89
	First round	28	19.20	21.64	19.20 24.56 20.35 24.20 20.36
NZ South Island Champs 2023	Second round	43	20.40	27.15	20.40 29.09 29.07 28.26 24.12
	First round	42	20.85	22.97	30.84 23.03 22.05 23.84 20.85
Cashmere Open 2023	Second round	42	20.06	24.38	24.11 29.26 20.06 25.81 23.21
	First round	44	19.79	23.51	38.74 22.04 19.79 25.56 22.92
NZ Nationals 2022	First round	123	20.40	22.45	20.40 27.89 21.36 22.25 23.73
Lyttelton Spring 2022	First round	36	21.21	25.36	33.56 29.41 21.21 24.15 22.53
Opawa Open 2022	Second round	32	20.54	23.59	23.56 22.31 25.44 24.89 20.54
	First round	34	20.80	23.21	29.78 22.24 22.67 24.73 20.80
NZSIC 2022	Second round	39	24.80	26.10	25.53 27.45 25.32 29.12 24.80
	First round	36	20.36	22.96	29.44 20.56 22.88 20.36 25.45
Lyttelton Autumn 2022	First round	27	21.32	25.48	32.50 25.68 28.52 22.25 21.32
Lyttelton Spring 2021	First round	38	23.08	26.98	26.44 23.08 28.41 33.28 26.10
Southern Scramble Dunedin 2021	First round	33	23.25	25.60	24.77 33.76 25.23 23.25 26.80
New Zealand Nationals 2020	First round	55	26.41	29.57	29.01 26.41 31.16 28.54 36.00
SNZ Southern 2018	First round	26	27.12	30.96	30.13 32.65 30.11 27.12 37.76
Supreme South Open 2017	First round	19	27.32	33.49	30.88 32.70 27.32 36.88 37.62
SNZ Southern 2017	First round	33	36.59	44.57	42.57 46.89 47.78 36.59 44.26

2x2x2 Cube
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	42	6.82	8.60	9.25 14.03 6.82 6.98 9.56
Lyttelton Summer 2024	First round	27	7.05	7.49	7.05 7.69 12.93 7.47 7.32
Lyttelton Spring 2023	First round	32	6.69	9.89	10.22 9.43 10.02 11.13 6.69
NZ South Island Champs 2023	Second round	35	5.99	7.85	7.34 10.75 6.40 9.81 5.99
	First round	38	6.31	8.43	10.40 8.96 9.01 6.31 7.31
Cashmere Open 2023	First round	45	9.34	11.14	9.34 12.22 10.22 10.97 DNF
NZ Nationals 2022	First round	155	7.97	9.56	9.73 7.97 8.92 13.08 10.03
Opawa Open 2022	First round	35	7.32	8.41	11.04 7.32 7.34 10.40 7.50
NZSIC 2022	First round	47	10.64	14.98	16.92 11.55 10.64 16.48 DNF
Lyttelton Autumn 2022	First round	28	7.53	9.16	7.53 8.04 12.83 8.29 11.16
Lyttelton Spring 2021	First round	42	9.19	12.15	21.09 10.44 15.36 10.65 9.19
Southern Scramble Dunedin 2021	First round	39	9.47	12.17	12.56 9.47 19.78 13.91 10.05
New Zealand Nationals 2020	First round	51	8.28	11.27	8.28 9.10 13.40 11.31 15.29

4x4x4 Cube
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	35	1:44.81	1:48.18	1:45.98 2:01.17 1:44.81 1:46.40 1:52.17
Lyttelton Spring 2023	First round	28	1:35.01	1:42.16	1:49.47 1:46.63 1:35.01 1:43.37 1:36.48
NZ South Island Champs 2023	First round	39	1:51.97	1:57.28	1:51.97 1:58.86 DNF 2:00.11 1:52.88
NZ Nationals 2022	First round	107	1:40.28		1:40.28 1:45.41
Lyttelton Spring 2022	First round	30	1:42.06	1:53.34	1:55.09 1:51.59 DNF 1:53.35 1:42.06
Opawa Open 2022	First round	30	1:41.89	1:58.30	2:11.81 1:54.11 1:41.89 1:48.98 DNF
NZSIC 2022	First round	35	1:45.61	1:56.89	1:49.47 2:01.20 2:18.48 1:45.61 2:00.00
Lyttelton Autumn 2022	First round	26	1:46.00	1:57.63	2:02.09 1:59.28 1:58.48 1:55.14 1:46.00
Lyttelton Spring 2021	First round	27	1:38.23	2:06.71	1:49.35 2:27.36 1:38.23 2:03.43 DNF
Southern Scramble Dunedin 2021	First round	27	1:59.82	2:02.23	2:31.21 1:59.82 2:02.41 2:02.93 2:01.35
New Zealand Nationals 2020	First round	51	2:29.76		DNF 2:29.76

5x5x5 Cube
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	32	3:45.77		3:45.77 3:48.33
NZ South Island Champs 2023	First round	30	3:31.08		4:15.94 3:31.08
NZ Nationals 2022	First round	78	3:14.35		3:14.35 3:23.54
Lyttelton Spring 2022	First round	23	3:23.92		DNF 3:23.92
Opawa Open 2022	First round	23	3:33.30		4:00.72 3:33.30
NZSIC 2022	First round	26	3:15.95		3:39.90 3:15.95
Lyttelton Autumn 2022	First round	22	3:52.99		3:59.74 3:52.99
Lyttelton Spring 2021	First round	20	3:32.19		3:32.19 3:39.21
Southern Scramble Dunedin 2021	First round	22	3:53.29		3:53.29 3:59.59

6x6x6 Cube
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	26	7:52.27		7:52.27
NZ Nationals 2022	First round	37	DNF		DNF
Lyttelton Autumn 2022	First round	13	DNF		DNF
Southern Scramble Dunedin 2021	Final	12	DNF		DNF

7x7x7 Cube
Competition	Round	Place	Best	Average	Detail
NZ Nationals 2022	First round	29	DNF		DNF

3x3x3 One-Handed
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	33	51.21	1:03.31	51.21 1:09.19 1:05.49 1:22.78 55.24
Lyttelton Summer 2024	First round	28	50.72	1:05.59	1:13.50 50.72 1:07.54 1:02.79 1:06.43
Lyttelton Spring 2023	First round	28	49.77	1:21.91	1:28.61 49.77 1:35.07 1:49.81 1:02.06
NZ South Island Champs 2023	First round	36	1:05.73		1:05.79 1:05.73
Cashmere Open 2023	First round	35	1:09.01		1:09.01 DNF
NZ Nationals 2022	First round	88	1:09.42		1:09.42 1:34.08
Lyttelton Autumn 2022	First round	25	DNF		DNF DNF
Lyttelton Spring 2021	First round	22	1:08.66	DNF	1:08.66 DNF DNF DNF DNF

Clock
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	15	12.47	13.54	13.42 12.47 12.94 14.25 DNF
NZ South Island Champs 2023	First round	20	11.04	13.23	13.26 14.73 13.59 11.04 12.83
Cashmere Open 2023	Second round	15	16.60	18.85	16.60 DNF 18.44 19.52 18.58
	First round	17	15.86	17.55	18.78 16.79 18.22 15.86 17.63
NZ Nationals 2022	First round	28	15.01	17.08	15.33 15.01 DNF 15.63 20.28
Lyttelton Spring 2022	Final	14	18.29	19.54	30.80 21.14 18.39 18.29 19.08
Opawa Open 2022	First round	18	19.86	22.64	23.31 24.63 19.86 DNF 19.97
NZSIC 2022	First round	14	20.03	24.16	25.51 20.76 26.22 20.03 31.34

Megaminx
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	31	4:22.06		DNF 4:22.06
NZ Nationals 2022	First round	58	DNF		DNF DNF
NZSIC 2022	First round	23	DNF		DNF DNF

Pyraminx
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	40	8.40	14.95	14.73 11.54 19.47 18.57 8.40
Lyttelton Summer 2024	First round	26	10.71	13.39	10.71 17.34 11.19 11.64 18.65
NZ South Island Champs 2023	First round	48	21.18	24.37	24.63 DNF 26.44 21.18 22.05
Cashmere Open 2023	First round	41	10.95	17.43	21.00 10.95 25.38 15.87 15.41
NZ Nationals 2022	First round	137	12.87	19.19	23.40 39.87 17.39 16.78 12.87
Lyttelton Spring 2022	First round	28	11.20	20.15	21.42 23.86 27.70 11.20 15.16
Opawa Open 2022	First round	30	15.47	18.62	22.94 15.47 19.02 20.21 16.62
NZSIC 2022	First round	40	9.82	18.53	19.53 21.70 14.37 9.82 23.69
Lyttelton Spring 2021	First round	31	8.35	17.00	10.96 20.48 8.35 19.56 24.42
Southern Scramble Dunedin 2021	First round	28	12.33	18.82	12.33 22.23 18.18 29.14 16.06

Skewb
Competition	Round	Place	Best	Average	Detail
NZ South Island Champ 2024	First round	33	15.81	23.03	25.95 24.53 15.81 18.61 DNF
NZ South Island Champs 2023	First round	36	16.16	25.35	25.07 16.16 23.06 27.92 38.91
Cashmere Open 2023	First round	38	16.50	24.79	25.05 31.50 18.24 31.07 16.50
NZ Nationals 2022	First round	84	11.66	16.84	11.66 38.57 18.72 12.16 19.65
Opawa Open 2022	First round	21	14.88	20.75	23.98 23.72 21.97 16.55 14.88
NZSIC 2022	First round	33	14.73	19.33	16.64 26.52 23.20 14.73 18.16
Lyttelton Spring 2021	First round	29	9.09	21.23	11.90 21.76 9.09 30.02 DNF
Southern Scramble Dunedin 2021	First round	24	21.38	29.06	27.67 DNF 29.62 29.90 21.38

Event	Round	Place	Best	Average	Detail
NZ South Island Champ 2024
3x3x3 Cube	Second round	41	18.92	24.60	18.92 24.74 23.77 25.29 26.72
	First round	37	19.27	21.40	21.90 22.19 19.27 20.11 26.54
2x2x2 Cube	First round	42	6.82	8.60	9.25 14.03 6.82 6.98 9.56
4x4x4 Cube	First round	35	1:44.81	1:48.18	1:45.98 2:01.17 1:44.81 1:46.40 1:52.17
5x5x5 Cube	First round	32	3:45.77		3:45.77 3:48.33
6x6x6 Cube	First round	26	7:52.27		7:52.27
3x3x3 One-Handed	First round	33	51.21	1:03.31	51.21 1:09.19 1:05.49 1:22.78 55.24
Clock	First round	15	12.47	13.54	13.42 12.47 12.94 14.25 DNF
Megaminx	First round	31	4:22.06		DNF 4:22.06
Pyraminx	First round	40	8.40	14.95	14.73 11.54 19.47 18.57 8.40
Skewb	First round	33	15.81	23.03	25.95 24.53 15.81 18.61 DNF

Lyttelton Summer 2024
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	30	23.26	26.08	23.26 27.51 27.81 25.47 25.27
2x2x2 Cube	First round	27	7.05	7.49	7.05 7.69 12.93 7.47 7.32
3x3x3 One-Handed	First round	28	50.72	1:05.59	1:13.50 50.72 1:07.54 1:02.79 1:06.43
Pyraminx	First round	26	10.71	13.39	10.71 17.34 11.19 11.64 18.65

Lyttelton Spring 2023
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	29	19.84	22.64	22.91 DNF 19.84 23.11 21.89
	First round	28	19.20	21.64	19.20 24.56 20.35 24.20 20.36
2x2x2 Cube	First round	32	6.69	9.89	10.22 9.43 10.02 11.13 6.69
4x4x4 Cube	First round	28	1:35.01	1:42.16	1:49.47 1:46.63 1:35.01 1:43.37 1:36.48
3x3x3 One-Handed	First round	28	49.77	1:21.91	1:28.61 49.77 1:35.07 1:49.81 1:02.06

NZ South Island Champs 2023
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	43	20.40	27.15	20.40 29.09 29.07 28.26 24.12
	First round	42	20.85	22.97	30.84 23.03 22.05 23.84 20.85
2x2x2 Cube	Second round	35	5.99	7.85	7.34 10.75 6.40 9.81 5.99
	First round	38	6.31	8.43	10.40 8.96 9.01 6.31 7.31
4x4x4 Cube	First round	39	1:51.97	1:57.28	1:51.97 1:58.86 DNF 2:00.11 1:52.88
5x5x5 Cube	First round	30	3:31.08		4:15.94 3:31.08
3x3x3 One-Handed	First round	36	1:05.73		1:05.79 1:05.73
Clock	First round	20	11.04	13.23	13.26 14.73 13.59 11.04 12.83
Pyraminx	First round	48	21.18	24.37	24.63 DNF 26.44 21.18 22.05
Skewb	First round	36	16.16	25.35	25.07 16.16 23.06 27.92 38.91

Cashmere Open 2023
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	42	20.06	24.38	24.11 29.26 20.06 25.81 23.21
	First round	44	19.79	23.51	38.74 22.04 19.79 25.56 22.92
2x2x2 Cube	First round	45	9.34	11.14	9.34 12.22 10.22 10.97 DNF
3x3x3 One-Handed	First round	35	1:09.01		1:09.01 DNF
Clock	Second round	15	16.60	18.85	16.60 DNF 18.44 19.52 18.58
	First round	17	15.86	17.55	18.78 16.79 18.22 15.86 17.63
Pyraminx	First round	41	10.95	17.43	21.00 10.95 25.38 15.87 15.41
Skewb	First round	38	16.50	24.79	25.05 31.50 18.24 31.07 16.50

NZ Nationals 2022
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	123	20.40	22.45	20.40 27.89 21.36 22.25 23.73
2x2x2 Cube	First round	155	7.97	9.56	9.73 7.97 8.92 13.08 10.03
4x4x4 Cube	First round	107	1:40.28		1:40.28 1:45.41
5x5x5 Cube	First round	78	3:14.35		3:14.35 3:23.54
6x6x6 Cube	First round	37	DNF		DNF
7x7x7 Cube	First round	29	DNF		DNF
3x3x3 One-Handed	First round	88	1:09.42		1:09.42 1:34.08
Clock	First round	28	15.01	17.08	15.33 15.01 DNF 15.63 20.28
Megaminx	First round	58	DNF		DNF DNF
Pyraminx	First round	137	12.87	19.19	23.40 39.87 17.39 16.78 12.87
Skewb	First round	84	11.66	16.84	11.66 38.57 18.72 12.16 19.65

Lyttelton Spring 2022
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	36	21.21	25.36	33.56 29.41 21.21 24.15 22.53
4x4x4 Cube	First round	30	1:42.06	1:53.34	1:55.09 1:51.59 DNF 1:53.35 1:42.06
5x5x5 Cube	First round	23	3:23.92		DNF 3:23.92
Clock	Final	14	18.29	19.54	30.80 21.14 18.39 18.29 19.08
Pyraminx	First round	28	11.20	20.15	21.42 23.86 27.70 11.20 15.16

Opawa Open 2022
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	32	20.54	23.59	23.56 22.31 25.44 24.89 20.54
	First round	34	20.80	23.21	29.78 22.24 22.67 24.73 20.80
2x2x2 Cube	First round	35	7.32	8.41	11.04 7.32 7.34 10.40 7.50
4x4x4 Cube	First round	30	1:41.89	1:58.30	2:11.81 1:54.11 1:41.89 1:48.98 DNF
5x5x5 Cube	First round	23	3:33.30		4:00.72 3:33.30
Clock	First round	18	19.86	22.64	23.31 24.63 19.86 DNF 19.97
Pyraminx	First round	30	15.47	18.62	22.94 15.47 19.02 20.21 16.62
Skewb	First round	21	14.88	20.75	23.98 23.72 21.97 16.55 14.88

NZSIC 2022
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	Second round	39	24.80	26.10	25.53 27.45 25.32 29.12 24.80
	First round	36	20.36	22.96	29.44 20.56 22.88 20.36 25.45
2x2x2 Cube	First round	47	10.64	14.98	16.92 11.55 10.64 16.48 DNF
4x4x4 Cube	First round	35	1:45.61	1:56.89	1:49.47 2:01.20 2:18.48 1:45.61 2:00.00
5x5x5 Cube	First round	26	3:15.95		3:39.90 3:15.95
Clock	First round	14	20.03	24.16	25.51 20.76 26.22 20.03 31.34
Megaminx	First round	23	DNF		DNF DNF
Pyraminx	First round	40	9.82	18.53	19.53 21.70 14.37 9.82 23.69
Skewb	First round	33	14.73	19.33	16.64 26.52 23.20 14.73 18.16

Lyttelton Autumn 2022
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	27	21.32	25.48	32.50 25.68 28.52 22.25 21.32
2x2x2 Cube	First round	28	7.53	9.16	7.53 8.04 12.83 8.29 11.16
4x4x4 Cube	First round	26	1:46.00	1:57.63	2:02.09 1:59.28 1:58.48 1:55.14 1:46.00
5x5x5 Cube	First round	22	3:52.99		3:59.74 3:52.99
6x6x6 Cube	First round	13	DNF		DNF
3x3x3 One-Handed	First round	25	DNF		DNF DNF

Lyttelton Spring 2021
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	38	23.08	26.98	26.44 23.08 28.41 33.28 26.10
2x2x2 Cube	First round	42	9.19	12.15	21.09 10.44 15.36 10.65 9.19
4x4x4 Cube	First round	27	1:38.23	2:06.71	1:49.35 2:27.36 1:38.23 2:03.43 DNF
5x5x5 Cube	First round	20	3:32.19		3:32.19 3:39.21
3x3x3 One-Handed	First round	22	1:08.66	DNF	1:08.66 DNF DNF DNF DNF
Pyraminx	First round	31	8.35	17.00	10.96 20.48 8.35 19.56 24.42
Skewb	First round	29	9.09	21.23	11.90 21.76 9.09 30.02 DNF

Southern Scramble Dunedin 2021
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	33	23.25	25.60	24.77 33.76 25.23 23.25 26.80
2x2x2 Cube	First round	39	9.47	12.17	12.56 9.47 19.78 13.91 10.05
4x4x4 Cube	First round	27	1:59.82	2:02.23	2:31.21 1:59.82 2:02.41 2:02.93 2:01.35
5x5x5 Cube	First round	22	3:53.29		3:53.29 3:59.59
6x6x6 Cube	Final	12	DNF		DNF
Pyraminx	First round	28	12.33	18.82	12.33 22.23 18.18 29.14 16.06
Skewb	First round	24	21.38	29.06	27.67 DNF 29.62 29.90 21.38

New Zealand Nationals 2020
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	55	26.41	29.57	29.01 26.41 31.16 28.54 36.00
2x2x2 Cube	First round	51	8.28	11.27	8.28 9.10 13.40 11.31 15.29
4x4x4 Cube	First round	51	2:29.76		DNF 2:29.76

SNZ Southern 2018
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	26	27.12	30.96	30.13 32.65 30.11 27.12 37.76

Supreme South Open 2017
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	19	27.32	33.49	30.88 32.70 27.32 36.88 37.62

SNZ Southern 2017
Event	Round	Place	Best	Average	Detail
3x3x3 Cube	First round	33	36.59	44.57	42.57 46.89 47.78 36.59 44.26

No.	Date	Name	Region	City
16	2024-04-19~21	NZ South Island Champ 2024	New Zealand	Queenstown
15	2024-02-18	Lyttelton Summer 2024	New Zealand	Christchurch
14	2023-11-18	Lyttelton Spring 2023	New Zealand	Christchurch
13	2023-07-07~09	NZ South Island Champs 2023	New Zealand	Christchurch
12	2023-05-27~28	Cashmere Open 2023	New Zealand	Christchurch
11	2022-12-09~11	NZ Nationals 2022	New Zealand	Auckland
10	2022-11-19~20	Lyttelton Spring 2022	New Zealand	Christchurch
9	2022-09-10~11	Opawa Open 2022	New Zealand	Christchurch
8	2022-06-24~26	NZSIC 2022	New Zealand	Nelson
7	2022-03-05~06	Lyttelton Autumn 2022	New Zealand	Christchurch
6	2021-11-27~28	Lyttelton Spring 2021	New Zealand	Christchurch
5	2021-07-10~11	Southern Scramble Dunedin 2021	New Zealand	Dunedin
4	2020-12-11~13	New Zealand Nationals 2020	New Zealand	Nelson
3	2018-04-21	SNZ Southern 2018	New Zealand	Christchurch
2	2017-08-26~27	Supreme South Open 2017	New Zealand	Christchurch
1	2017-03-18	SNZ Southern 2017	New Zealand	Christchurch

Closest Cubers

Person	Competitions
Alex Asbery	13
Daniel Fraser	13
Dwyane Ramos	13
Jasper Murray	13
Joshua Brungar	12
Zee Capangpangan	12
Henry Eyles	11
Adrien Auvray Matyn	10
Aneurin Hunt	10
James Macdiarmid	10
Ben Kirby	9
Cooper Jones	9
Oliver Jenks	9
Connor Johnson	8
Jacob O'Callaghan	8
Joseph Jenkinson	8
Alexander Vujcich	7
Benjamin Blaikie	7
Chris Mills	7
Finn Trass	7

Seen Cubers

Times	Competitors
1	408
2	61
3	29
4	11
5	8
6	8
7	9
8	3
9	3
10	3
11	1
12	2
13	4
All	550