2012-13 National Filtered Statistics

2012-2013 MEN'S COLLEGE HOCKEY NATIONAL STATISTICS DATABASE

WCHA 2012-2013 Statistics
Game Filters: Conference Games Only
Date Filters: None (All Games Included)
Goal Filters: None (All Goals Included)
Time Filters: None (All Goals Included)
Player Filters: None (All Players Included)

Scoring Statistics (Individual)					GP	TGP	G	A	PTS	G/GP	A/GP	P/GP	PPG	PPA	PPP	SHG	GWG	HT	+/-	SOG	SOG/GP	G/SOG	FW	FL	FO %	BLK	PEN	PIM	PIM/GP
1	Andrew MacWilliam (TOR)	North Dakota	SR	D	28	28	1	7	8	0.04	0.25	0.29	0	0	0	0	0	0	+13	25	0.89	.040	0	1	.000	50	31	70	2.50
2	Scott Mayfield (NYI)	Denver	SO	D	28	28	4	10	14	0.14	0.36	0.50	2	3	5	0	0	0	+5	35	1.25	.114	0	0	---	19	29	66	2.36
3	Austin Sevalrud	Alaska Anchorage	FR	D	26	28	0	2	2	0.00	0.08	0.08	0	0	0	0	0	0	-11	10	0.38	.000	0	0	---	16	13	59	2.27
4	Eamonn McDermott	Colorado College	JR	D	27	28	1	15	16	0.04	0.56	0.59	0	10	10	0	0	0	-6	29	1.07	.034	0	0	---	37	20	59	2.19
5	Mike Boivin	Colorado College	SR	D	28	28	13	10	23	0.46	0.36	0.82	7	4	11	1	0	1	+2	106	3.79	.123	1	1	.500	11	22	58	2.07
6	Matt Bailey	Alaska Anchorage	JR	F	28	28	6	8	14	0.21	0.29	0.50	2	3	5	0	0	0	-16	56	2.00	.107	273	240	.532	13	14	53	1.89
7	Nick Seeler (MIN)	Nebraska Omaha	FR	D	23	28	0	5	5	0.00	0.22	0.22	0	0	0	0	0	0	+3	24	1.04	.000	1	0	1.000	24	12	43	1.87
8	Adam Krause	Minnesota Duluth	SO	F	28	28	1	2	3	0.04	0.07	0.11	0	0	0	1	0	0	-6	29	1.04	.034	36	49	.424	6	16	51	1.82
9	Brady Wacker	Bemidji State	SR	D	28	28	3	4	7	0.11	0.14	0.25	0	1	1	0	0	0	-10	47	1.68	.064	0	1	.000	44	14	50	1.79
10	Jake McCabe (BUF)	Wisconsin	SO	D	24	28	3	12	15	0.12	0.50	0.62	2	3	5	0	0	0	+7	29	1.21	.103	0	0	---	15	17	42	1.75
11	Seth Helgeson (NJD)	Minnesota	SR	D	28	28	0	4	4	0.00	0.14	0.14	0	0	0	0	0	0	-6	25	0.89	.000	0	0	---	36	20	48	1.71
	Stephane Pattyn	North Dakota	SO	F	28	28	1	1	2	0.04	0.04	0.07	0	0	0	0	0	0	-5	24	0.86	.042	91	92	.497	4	16	48	1.71
13	Zach Lehrke	Minnesota State	JR	F	28	28	8	10	18	0.29	0.36	0.64	3	6	9	1	1	0	+6	69	2.46	.116	36	56	.391	2	12	46	1.64
14	Brendan Woods (CAR)	Wisconsin	SO	F	27	28	3	4	7	0.11	0.15	0.26	0	1	1	0	1	0	+3	36	1.33	.083	106	88	.546	0	15	41	1.52
15	Phil Brewer	Bemidji State	FR	F	24	28	2	1	3	0.08	0.04	0.12	0	0	0	0	0	0	-4	17	0.71	.118	38	44	.463	2	7	36	1.50
	Scott Winkler (DAL)	Colorado College	SR	F	28	28	9	10	19	0.32	0.36	0.68	3	4	7	0	1	0	-3	56	2.00	.161	258	303	.460	8	10	42	1.50
	John Ramage (CGY)	Wisconsin	SR	D	28	28	5	6	11	0.18	0.21	0.39	0	1	1	1	2	0	+8	56	2.00	.089	0	0	---	19	21	42	1.50
18	Eriah Hayes	Minnesota State	SR	F	28	28	15	13	28	0.54	0.46	1.00	10	2	12	0	1	1	+6	130	4.64	.115	19	9	.679	2	19	41	1.46
	Andrej Sustr	Nebraska Omaha	JR	D	28	28	7	11	18	0.25	0.39	0.64	4	3	7	0	1	0	+8	64	2.29	.109	0	3	.000	43	15	41	1.46
	Tyler Currier	Alaska Anchorage	SR	F	28	28	4	0	4	0.14	0.00	0.14	0	0	0	1	0	0	-4	26	0.93	.154	99	117	.458	18	15	41	1.46
21	Matt Leitner	Minnesota State	SO	F	28	28	13	19	32	0.46	0.68	1.14	4	14	18	0	2	1	+6	63	2.25	.206	260	265	.495	6	14	39	1.39
	Jake Areshenko	Bemidji State	SR	D	28	28	0	4	4	0.00	0.14	0.14	0	0	0	0	0	0	-9	17	0.61	.000	1	0	1.000	39	14	39	1.39
23	Austin Farley (93)	Minnesota Duluth	FR	F	27	28	14	12	26	0.52	0.44	0.96	6	7	13	0	1	0	E	67	2.48	.209	5	2	.714	7	9	37	1.37
	Joseph LaBate (VAN)	Wisconsin	SO	F	27	28	4	7	11	0.15	0.26	0.41	1	1	2	0	0	0	+7	51	1.89	.078	12	21	.364	1	13	37	1.37
25	Derek Rodwell (NJD)	North Dakota	JR	F	23	28	1	1	2	0.04	0.04	0.09	0	0	0	0	0	0	E	30	1.30	.033	8	2	.800	3	11	30	1.30
26	Chase Grant	Minnesota State	SO	F	28	28	2	6	8	0.07	0.21	0.29	1	2	3	0	1	0	-7	58	2.07	.034	4	2	.667	9	18	36	1.29
27	Josiah Didier (MTL)	Denver	SO	D	22	28	0	4	4	0.00	0.18	0.18	0	0	0	0	0	0	+8	20	0.91	.000	0	0	---	15	14	28	1.27
28	Brian Cooper (ANA)	Nebraska Omaha	FR	D	23	28	0	2	2	0.00	0.09	0.09	0	0	0	0	0	0	-1	23	1.00	.000	2	1	.667	6	9	29	1.26
29	Rylan Schwartz	Colorado College	SR	F	27	28	12	23	35	0.44	0.85	1.30	4	10	14	0	1	0	-2	83	3.07	.145	297	232	.561	11	11	33	1.22
30	Shawn Ostrow	Denver	SR	F	28	28	12	7	19	0.43	0.25	0.68	2	1	3	0	3	0	+9	53	1.89	.226	312	262	.544	2	11	33	1.18
	Ty Loney	Denver	SO	F	28	28	4	14	18	0.14	0.50	0.64	3	4	7	0	0	0	+4	65	2.32	.062	14	11	.560	2	11	33	1.18
32	David Johnstone	Michigan Tech	SO	F	26	28	10	15	25	0.38	0.58	0.96	2	7	9	0	1	0	+2	103	3.96	.097	20	15	.571	9	11	30	1.15
33	Frankie Simonelli	Wisconsin	JR	D	28	28	1	7	8	0.04	0.25	0.29	0	2	2	0	0	0	+11	34	1.21	.029	0	0	---	10	16	32	1.14
34	Zac Larraza (PHX)	Denver	SO	F	25	28	9	6	15	0.36	0.24	0.60	0	0	0	1	2	0	+12	63	2.52	.143	4	3	.571	3	10	28	1.12
35	Scott Allen	Alaska Anchorage	SO	F	28	28	9	5	14	0.32	0.18	0.50	1	1	2	0	0	0	-4	52	1.86	.173	6	0	1.000	21	10	31	1.11
	Cory Ward (93)	Bemidji State	FR	F	28	28	6	5	11	0.21	0.18	0.39	0	3	3	0	0	0	-8	42	1.50	.143	177	190	.482	16	10	31	1.11
37	Brian O'Rourke	Nebraska Omaha	SO	D	21	28	0	4	4	0.00	0.19	0.19	0	0	0	0	0	0	+2	10	0.48	.000	26	36	.419	11	6	23	1.10
38	Corban Knight (FLA)	North Dakota	SR	F	28	28	12	23	35	0.43	0.82	1.25	2	7	9	0	1	0	+14	70	2.50	.171	421	320	.568	19	15	30	1.07
	David Makowski	Denver	JR	D	28	28	7	11	18	0.25	0.39	0.64	4	5	9	0	1	0	+1	54	1.93	.130	0	1	.000	15	15	30	1.07
	Blake Pietila (NJD)	Michigan Tech	SO	F	28	28	11	5	16	0.39	0.18	0.57	2	0	2	0	1	0	-4	75	2.68	.147	159	126	.558	7	15	30	1.07
	Teddy Blueger (PIT)	Minnesota State	FR	F	28	28	5	11	16	0.18	0.39	0.57	0	6	6	0	2	0	-1	42	1.50	.119	210	174	.547	3	15	30	1.07
	Joe Basaraba (FLA)	Minnesota Duluth	JR	F	28	28	8	5	13	0.29	0.18	0.46	3	2	5	0	2	0	-2	68	2.43	.118	0	1	.000	10	15	30	1.07
	Chris Crowell	Alaska Anchorage	SR	F	28	28	0	3	3	0.00	0.11	0.11	0	0	0	0	0	0	-2	17	0.61	.000	6	18	.250	21	11	30	1.07
44	Jake Parenteau	Minnesota	JR	D	24	28	2	3	5	0.08	0.12	0.21	0	0	0	0	0	0	+9	30	1.25	.067	0	1	.000	12	7	25	1.04
45	Dominic Zombo	Nebraska Omaha	SO	F	28	28	8	19	27	0.29	0.68	0.96	2	4	6	0	4	0	+15	48	1.71	.167	209	230	.476	12	9	29	1.04
	Jordan Schmaltz (STL)	North Dakota	FR	D	28	28	2	6	8	0.07	0.21	0.29	2	2	4	0	0	0	+4	30	1.07	.067	0	0	---	28	9	29	1.04
47	Colten St. Clair	North Dakota	FR	F	26	28	1	3	4	0.04	0.12	0.15	0	1	1	0	0	0	-3	31	1.19	.032	38	26	.594	5	9	26	1.00
	Ryan Little	Wisconsin	SR	F	27	28	5	4	9	0.19	0.15	0.33	0	0	0	1	0	0	E	52	1.93	.096	2	8	.200	1	8	27	1.00
	Jujhar Khaira (EDM)	Michigan Tech	FR	F	28	28	4	15	19	0.14	0.54	0.68	3	4	7	0	1	0	E	47	1.68	.085	194	196	.497	7	14	28	1.00
	Chris Williams	Alaska Anchorage	FR	D	28	28	0	2	2	0.00	0.07	0.07	0	0	0	0	0	0	-14	29	1.04	.000	0	0	---	36	14	28	1.00
51	Jeff Collett	Colorado College	JR	F	28	28	2	4	6	0.07	0.14	0.21	0	0	0	0	1	0	-6	22	0.79	.091	125	161	.437	14	8	27	0.96
52	Caleb Herbert (WSH)	Minnesota Duluth	SO	F	25	28	5	12	17	0.20	0.48	0.68	2	7	9	0	1	0	-7	66	2.64	.076	146	166	.468	11	12	24	0.96
53	Nic Dowd (LOS)	St. Cloud State	JR	F	28	28	11	18	29	0.39	0.64	1.04	2	4	6	0	4	0	+7	55	1.96	.200	232	218	.516	29	13	26	0.93
	Nick Shore (LOS)	Denver	JR	F	28	28	7	14	21	0.25	0.50	0.75	1	7	8	0	3	0	-3	93	3.32	.075	341	251	.576	11	13	26	0.93
	Sean Little	Wisconsin	JR	F	28	28	1	5	6	0.04	0.18	0.21	0	0	0	0	1	0	+1	40	1.43	.025	0	1	.000	4	9	26	0.93
56	Drake Caggiula (94)	North Dakota	FR	F	27	28	6	7	13	0.22	0.26	0.48	1	0	1	0	2	0	+6	28	1.04	.214	2	2	.500	9	7	25	0.93
57	Brad Stebner	Michigan Tech	JR	D	26	28	0	7	7	0.00	0.27	0.27	0	0	0	0	0	0	-7	18	0.69	.000	0	0	---	15	12	24	0.92
58	Joey LaLeggia (EDM)	Denver	SO	D	28	28	10	13	23	0.36	0.46	0.82	5	8	13	0	1	0	+1	74	2.64	.135	0	0	---	13	7	25	0.89
	Daniel Doremus	Denver	SO	F	28	28	6	10	16	0.21	0.36	0.57	1	2	3	0	1	0	+7	39	1.39	.154	28	29	.491	6	7	25	0.89
60	Tanner Kero	Michigan Tech	SO	F	24	28	6	8	14	0.25	0.33	0.58	1	2	3	0	0	0	+1	41	1.71	.146	129	128	.502	13	5	21	0.88
	Grant Arnold	Denver	FR	F	24	28	1	3	4	0.04	0.12	0.17	0	0	0	0	0	0	-1	14	0.58	.071	0	0	---	5	5	21	0.88
62	Nick Oliver (NSH)	St. Cloud State	SO	F	21	28	1	2	3	0.05	0.10	0.14	0	0	0	0	0	0	E	17	0.81	.059	5	2	.714	5	9	18	0.86
	Tony Cameranesi (TOR)	Minnesota Duluth	FR	F	28	28	11	17	28	0.39	0.61	1.00	6	11	17	0	1	0	+3	106	3.79	.104	236	297	.443	9	12	24	0.86
	Bryce Gervais	Minnesota State	FR	F	28	28	4	5	9	0.14	0.18	0.32	1	0	1	1	1	0	+1	45	1.61	.089	10	24	.294	3	12	24	0.86
	Joe Marciano	Colorado College	SR	D	28	28	2	2	4	0.07	0.07	0.14	0	0	0	0	0	0	-1	25	0.89	.080	0	1	.000	30	12	24	0.86
66	Tyler Barnes	Wisconsin	JR	F	27	28	9	9	18	0.33	0.33	0.67	2	3	5	0	2	0	+1	64	2.37	.141	1	4	.200	6	6	23	0.85
67	Jean-Paul Lafontaine	Minnesota State	SO	F	28	28	6	19	25	0.21	0.68	0.89	2	9	11	0	0	0	+2	68	2.43	.088	165	161	.506	3	6	23	0.82
68	Josh Archibald (PIT)	Nebraska Omaha	SO	F	28	28	18	15	33	0.64	0.54	1.18	3	4	7	1	1	1	+13	70	2.50	.257	103	89	.536	10	11	22	0.79
	Dennis Rix	Michigan Tech	JR	F	28	28	3	5	8	0.11	0.18	0.29	0	0	0	1	0	0	-5	54	1.93	.056	210	203	.508	18	11	22	0.79
70	Danny Mattson	Bemidji State	SO	F	23	28	4	13	17	0.17	0.57	0.74	2	7	9	0	0	0	-8	31	1.35	.129	8	5	.615	7	5	18	0.78
71	Joey Holka	St. Cloud State	SO	F	24	28	1	5	6	0.04	0.21	0.25	0	0	0	0	0	0	+2	25	1.04	.040	2	0	1.000	3	9	18	0.75
	Kevin Gravel (LOS)	St. Cloud State	JR	D	28	28	0	7	7	0.00	0.25	0.25	0	0	0	0	0	0	E	39	1.39	.000	1	0	1.000	24	5	21	0.75
73	Dylan Margonari	Minnesota State	FR	F	27	28	9	8	17	0.33	0.30	0.63	1	4	5	0	2	0	+4	58	2.15	.155	14	18	.438	2	10	20	0.74
	Wade Bergman	Minnesota Duluth	SR	D	27	28	2	10	12	0.07	0.37	0.44	2	7	9	0	2	0	-6	43	1.59	.047	1	1	.500	30	10	20	0.74
75	Ian Young	Colorado College	SO	D	26	28	0	4	4	0.00	0.15	0.15	0	1	1	0	0	0	E	25	0.96	.000	0	0	---	26	4	19	0.73
76	Danny Kristo (MTL)	North Dakota	SR	F	28	28	17	20	37	0.61	0.71	1.32	2	4	6	2	2	0	+12	114	4.07	.149	4	7	.364	9	10	20	0.71
	Archie Skalbeck	Colorado College	JR	F	28	28	7	10	17	0.25	0.36	0.61	1	0	1	0	2	0	-10	38	1.36	.184	20	19	.513	5	6	20	0.71
	Jordan George	Bemidji State	SR	F	28	28	6	9	15	0.21	0.32	0.54	2	2	4	0	1	0	-7	58	2.07	.103	1	2	.333	9	10	20	0.71
	Jefferson Dahl	Wisconsin	JR	F	28	28	4	4	8	0.14	0.14	0.29	0	0	0	0	2	0	-2	44	1.57	.091	224	229	.494	3	10	20	0.71
	Drew Olson (CLB)	Minnesota Duluth	SR	D	28	28	1	4	5	0.04	0.14	0.18	0	1	1	0	0	0	-9	50	1.79	.020	1	1	.500	27	10	20	0.71
81	Zahn Raubenheimer	Nebraska Omaha	JR	F	24	28	7	3	10	0.29	0.12	0.42	2	0	2	1	2	0	-3	54	2.25	.130	30	28	.517	4	3	17	0.71
82	Justin Crandall	Minnesota Duluth	SO	F	27	28	3	7	10	0.11	0.26	0.37	2	3	5	0	0	0	-2	53	1.96	.057	38	43	.469	8	4	19	0.70
	Hayden Trupp	Alaska Anchorage	FR	F	27	28	2	3	5	0.07	0.11	0.19	0	0	0	0	0	0	-11	22	0.81	.091	3	4	.429	12	4	19	0.70
84	Seth Ambroz (CLB)	Minnesota	SO	F	26	28	7	5	12	0.27	0.19	0.46	2	2	4	0	2	0	+6	51	1.96	.137	3	1	.750	9	9	18	0.69
85	Brent Gwidt (WSH)	Nebraska Omaha	SR	F	28	28	5	4	9	0.18	0.14	0.32	0	0	0	1	0	0	-1	55	1.96	.091	97	84	.536	7	4	19	0.68
86	Quinn Sproule	Alaska Anchorage	JR	D	24	28	1	6	7	0.04	0.25	0.29	0	4	4	0	0	0	-12	22	0.92	.045	1	3	.250	8	8	16	0.67
	Eli Zuck	Minnesota State	SR	F	24	28	1	6	7	0.04	0.25	0.29	0	0	0	0	0	0	+6	17	0.71	.059	108	161	.401	6	8	16	0.67
88	Michael Mersch (LOS)	Wisconsin	JR	F	28	28	17	9	26	0.61	0.32	0.93	3	3	6	0	3	0	+10	91	3.25	.187	3	7	.300	2	5	18	0.64
	Mike Seidel	Minnesota Duluth	SR	F	28	28	13	13	26	0.46	0.46	0.93	5	7	12	0	3	0	-1	118	4.21	.110	36	30	.545	2	9	18	0.64
	Zach Palmquist	Minnesota State	SO	D	28	28	3	12	15	0.11	0.43	0.54	2	8	10	0	0	0	+3	55	1.96	.055	0	0	---	8	9	18	0.64
	Ben Marshall (DET)	Minnesota	SO	D	28	28	4	8	12	0.14	0.29	0.43	3	3	6	0	2	0	+2	46	1.64	.087	0	0	---	35	9	18	0.64
	Paul Phillips (CHI)	Denver	SR	D	28	28	1	9	10	0.04	0.32	0.36	0	2	2	1	0	0	-2	35	1.25	.029	0	0	---	15	9	18	0.64
93	Tim Smith	Minnesota Duluth	JR	D	22	28	0	4	4	0.00	0.18	0.18	0	0	0	0	0	0	+4	18	0.82	.000	0	0	---	15	7	14	0.64
94	Nolan Zajac	Denver	FR	D	26	28	4	10	14	0.15	0.38	0.54	2	5	7	0	1	0	+7	34	1.31	.118	1	1	.500	13	8	16	0.62
95	Matt Prapavessis	Bemidji State	SO	D	28	28	2	8	10	0.07	0.29	0.36	0	5	5	0	0	0	-3	45	1.61	.044	0	0	---	44	3	17	0.61
	Jon Jutzi	Minnesota State	FR	D	28	28	1	5	6	0.04	0.18	0.21	0	1	1	0	0	0	+7	19	0.68	.053	2	0	1.000	8	3	17	0.61
97	Alex Gellert	Alaska Anchorage	SR	F	27	28	3	5	8	0.11	0.19	0.30	1	3	4	0	0	0	-14	54	2.00	.056	15	24	.385	13	8	16	0.59
98	Brett Stern	Minnesota State	SO	D	24	28	1	4	5	0.04	0.17	0.21	0	0	0	0	0	0	+2	23	0.96	.043	0	0	---	6	7	14	0.58
99	David Morley	St. Cloud State	FR	F	21	28	9	3	12	0.43	0.14	0.57	6	3	9	0	1	1	E	45	2.14	.200	100	59	.629	3	6	12	0.57
	Ryan Walters	Nebraska Omaha	JR	F	28	28	16	24	40	0.57	0.86	1.43	2	5	7	0	2	0	+21	93	3.32	.172	24	37	.393	8	8	16	0.57
	William Rapuzzi	Colorado College	SR	F	28	28	12	14	26	0.43	0.50	0.93	4	4	8	1	2	0	-2	65	2.32	.185	32	42	.432	12	8	16	0.57
	Nate Schmidt	Minnesota	JR	D	28	28	7	19	26	0.25	0.68	0.93	3	13	16	0	1	0	+7	81	2.89	.086	0	2	.000	23	8	16	0.57
	Kyle Rau (FLA)	Minnesota	SO	F	28	28	8	16	24	0.29	0.57	0.86	4	10	14	0	3	1	+3	78	2.79	.103	22	15	.595	18	8	16	0.57
	Nick Bjugstad (FLA)	Minnesota	JR	F	28	28	15	8	23	0.54	0.29	0.82	9	1	10	0	3	0	-5	103	3.68	.146	310	215	.590	10	8	16	0.57
	Blake Tatchell	Alaska Anchorage	FR	F	28	28	6	15	21	0.21	0.54	0.75	1	7	8	0	0	0	-6	49	1.75	.122	228	212	.518	7	8	16	0.57
	Andy Welinski (ANA)	Minnesota Duluth	FR	D	28	28	3	12	15	0.11	0.43	0.54	2	7	9	0	0	0	-12	69	2.46	.043	1	0	1.000	23	8	16	0.57
	Derek Forbort (LOS)	North Dakota	JR	D	28	28	4	8	12	0.14	0.29	0.43	2	1	3	0	0	0	+8	47	1.68	.085	0	0	---	39	10	16	0.57
	Quentin Shore (94)	Denver	FR	F	28	28	4	7	11	0.14	0.25	0.39	0	2	2	0	0	0	-3	46	1.64	.087	192	191	.501	8	8	16	0.57
	Matt Tabrum	Denver	SO	F	28	28	6	4	10	0.21	0.14	0.36	0	0	0	1	0	0	-1	49	1.75	.122	12	10	.545	8	8	16	0.57
	Peter Stoykewych (WPG)	Colorado College	SO	D	28	28	1	7	8	0.04	0.25	0.29	0	1	1	0	1	0	-2	16	0.57	.062	0	2	.000	31	8	16	0.57
	Sam Rendle	Bemidji State	SO	D	28	28	2	5	7	0.07	0.18	0.25	0	2	2	0	1	0	-17	36	1.29	.056	0	0	---	41	8	16	0.57
	Tom Serratore	Minnesota	JR	F	28	28	5	1	6	0.18	0.04	0.21	0	0	0	0	3	0	+1	34	1.21	.147	15	11	.577	8	8	16	0.57

Advanced Statistics Archive: 2020-21 | 2019-20 | 2018-19 | 2017-18 | 2016-17 | 2015-16 | 2014-15 | 2013-14 | 2012-13

The Filtered/Advanced Statistics are best viewed on screen resolutions of 768 pixels or wider (most tablets are this width or wider). Filtered/Advanced Stats can be viewed and accessed from some mobile phones in landscape mode though the font is very small.

All team statistic pages are mobile-friendly. Click here for our Teams and Conferences page.

2012-2013 MEN'S COLLEGE HOCKEY NATIONAL STATISTICS DATABASE

More Statistics Filters