CoJrs 13-Tammy — #37 Girls 13 Club Volleyball Team for the 2025-2026 Season

Girls 13 Volleyball Team · CoJrs · Boulder, CO

CoJrs 13-Tammy is the #37 ranked girls 13 club volleyball team for the 2025-2026 season, with an Elo rating of 2120 and a 23-12 record (66% win rate) across 35 matches. The team competes as part of CoJrs (Boulder, CO).

#37

Overall Rank

2120

Elo Rating

23W-12L

Record

66%

Win Rate

Matches

Match History (35 matches)

Date	Event	Opponent	Score	W/L	Sets
2026-06-22	2026 USAV Girls Junior National Champ...	Seal Beach 13 - Black (SC) (11)	0-2	L	20-25,18-25
2026-06-22	2026 USAV Girls Junior National Champ...	KNVBC 13 Hype Black (HA) (4)	2-0	W	18-25,16-25
2026-06-21	2026 USAV Girls Junior National Champ...	Premier Nebraska 13 Gold (GP) (8)	2-0	W	17-25,23-25
2026-06-21	2026 USAV Girls Junior National Champ...	WAVE 13-Tammy (SC) (7)	0-2	L	26-24,25-19
2026-06-21	2026 USAV Girls Junior National Champ...	Panda VBC 13-1 (NC) (9)	2-1	W	25-17,21-25,9-15
2026-06-20	2026 USAV Girls Junior National Champ...	Rockwood Thunder 13 Elite (GW) (1)	2-1	W	25-16,23-25,15-17
2026-06-20	2026 USAV Girls Junior National Champ...	Invasion 13-Black (HA) (32)	0-2	L	19-25,18-25
2026-06-19	2026 USAV Girls Junior National Champ...	Aspire NW 13-1 Beaverton (CE) (35)	0-2	L	18-25,25-27
2026-06-19	2026 USAV Girls Junior National Champ...	NYC Juniors 13 Travel (GE) (47)	2-0	W	25-8,25-13
2026-06-19	2026 USAV Girls Junior National Champ...	Paramount VBC 13 Walter (CH) (24)	2-0	W	25-23,25-15
2026-04-19	2026 ASICS Show Me W2 (10's-14's, 18NB)	KNVBC 13 Hype Black	2-0	W	26-28, 22-25
2026-04-19	2026 ASICS Show Me W2 (10's-14's, 18NB)	407 13 Orange	2-1	W	20-25, 27-25, 6-15
2026-04-18	2026 ASICS Show Me W2 (10's-14's, 18NB)	OK Charge 13 UA	0-2	L	25-19, 25-11
2026-04-18	2026 ASICS Show Me W2 (10's-14's, 18NB)	HPSTL 13 Orange	1-2	L	25-22, 14-25, 15-13
2026-04-18	2026 ASICS Show Me W2 (10's-14's, 18NB)	KNVBC 13 Hype Black	2-1	W	25-21, 23-25, 12-15
2026-04-17	2026 ASICS Show Me W2 (10's-14's, 18NB)	Mem Metro 13 Elite Blk	2-0	W	26-24, 26-24
2026-04-17	2026 ASICS Show Me W2 (10's-14's, 18NB)	Triangle 13 Blue	2-0	W	25-16, 25-19
2026-04-17	2026 ASICS Show Me W2 (10's-14's, 18NB)	DYNASTY 13 Blue	1-2	L	25-19, 9-25, 13-15
2026-04-05	2026 adidas Windy City NQ (11-17s)	HPSTL 13 Orange	2-1	W	25-20, 14-25, 9-15
2026-04-05	2026 adidas Windy City NQ (11-17s)	Tampa United VBA 13 Black	2-1	W	25-17, 24-26, 5-15
2026-04-04	2026 adidas Windy City NQ (11-17s)	OPVC 13 Hineline	2-1	W	25-19, 8-25, 14-16
2026-04-04	2026 adidas Windy City NQ (11-17s)	NorCal 13-1 Black	1-2	L	9-25, 27-25, 15-13
2026-04-04	2026 adidas Windy City NQ (11-17s)	TVC 13-Black	2-0	W	12-25, 7-25
2026-04-03	2026 adidas Windy City NQ (11-17s)	XP 13 Elite 1	1-0	W	19-25
2026-04-03	2026 adidas Windy City NQ (11-17s)	Lions Cityside 13-1	1-0	W	25-17
2026-04-03	2026 adidas Windy City NQ (11-17s)	Decatur Force 13 Teal	2-1	W	18-25, 25-21, 9-15
2026-04-03	2026 adidas Windy City NQ (11-17s)	CVC 13 BLUE	1-2	L	24-26, 25-17, 16-14
2026-04-03	2026 adidas Windy City NQ (11-17s)	NorCal 13-1 Black	1-2	L	25-21, 20-25, 15-6
2026-01-19	2026 Triple Crown Colorado Challenge	Elevation 13 Peak	0-2	L	28-26, 25-16
2026-01-18	2026 Triple Crown Colorado Challenge	ARVC 13 Black Adidas	1-2	L	25-13, 22-25, 15-9
2026-01-17	2026 Triple Crown Colorado Challenge	Elevation 13 Timberline	2-0	W	25-19, 25-23
2026-01-17	2026 Triple Crown Colorado Challenge	SPIKES 13 JumpStart	2-0	W	25-15, 25-15
2026-01-17	2026 Triple Crown Colorado Challenge	Juggernaut 13-Regional1	2-0	W	25-15, 26-24
2026-01-17	2026 Triple Crown Colorado Challenge	Excel NW 13-1 Lux	2-0	W	25-15, 25-12
2026-01-17	2026 Triple Crown Colorado Challenge	Colorado Skyline 13 Royal	2-0	W	25-16, 25-11

Match Analysis (Elo Progression)

Date	Opponent	Score	W/L	Division	Opp Elo	Elo Before	Elo After	Change	K	SoS
2026-06-22	Seal Beach 13 - Black (SC) (11)	0-2	L	PREMIER	2083	2138	2120	-18	46	1.00
2026-06-22	KNVBC 13 Hype Black (HA) (4)	2-0	W	PREMIER	2146	2105	2138	+33	50	1.00
2026-06-21	Premier Nebraska 13 Gold (GP) (8)	2-0	W	PREMIER	2099	2076	2105	+29	50	1.00
2026-06-21	Panda VBC 13-1 (NC) (9)	2-1	W	PREMIER	2166	2047	2076	+29	56	1.00
2026-06-21	WAVE 13-Tammy (SC) (7)	0-2	L	PREMIER	2049	2062	2047	-15	46	1.00
2026-06-20	Rockwood Thunder 13 Elite (GW) (1)	2-1	W	PREMIER	2055	2053	2062	+9	50	1.00
2026-06-20	Invasion 13-Black (HA) (32)	0-2	L	PREMIER	2014	2072	2053	-19	46	1.00
2026-06-19	Aspire NW 13-1 Beaverton (CE) (35)	0-2	L	PREMIER	1957	2090	2072	-18	39	1.00
2026-06-19	Paramount VBC 13 Walter (CH) (24)	2-0	W	PREMIER	2051	2065	2090	+25	46	1.00
2026-06-19	NYC Juniors 13 Travel (GE) (47)	2-0	W	PREMIER	1769	2060	2065	+5	27	1.00
2026-04-19	KNVBC 13 Hype Black	2-0	W	USA	2114	2029	2060	+31	50	1.00
2026-04-19	407 13 Orange	2-1	W	USA	1895	2020	2029	+9	37	1.00
2026-04-18	HPSTL 13 Orange	1-2	L	USA	1984	2026	2020	-6	46	1.00
2026-04-18	KNVBC 13 Hype Black	2-1	W	USA	2119	1998	2026	+28	56	1.00
2026-04-18	OK Charge 13 UA	0-2	L	USA	2038	2016	1998	-18	50	1.00
2026-04-17	DYNASTY 13 Blue	1-2	L	USA	1889	2031	2016	-15	37	1.00
2026-04-17	Triangle 13 Blue	2-0	W	USA	1740	2028	2031	+3	21	1.00
2026-04-17	Mem Metro 13 Elite Blk	2-0	W	USA	1749	2027	2028	+1	21	1.00
2026-04-05	HPSTL 13 Orange	2-1	W	USA	1971	2009	2027	+18	46	1.00
2026-04-05	Tampa United VBA 13 Black	2-1	W	USA	1952	1996	2009	+13	46	1.00
2026-04-04	TVC 13-Black	2-0	W	USA	1931	1914	1996	+82	50	1.00
2026-04-04	OPVC 13 Hineline	2-1	W	USA	1911	1840	1914	+74	50	1.00
2026-04-04	NorCal 13-1 Black	1-2	L	USA	1911	1834	1840	+6	50	1.00
2026-04-03	XP 13 Elite 1	1-0	W	USA	1647	1821	1834	+13	26	1.00
2026-04-03	Lions Cityside 13-1	1-0	W	USA	1856	1738	1821	+83	46	1.00
2026-04-03	NorCal 13-1 Black	1-2	L	USA	1907	1749	1738	-11	48	1.00
2026-04-03	Decatur Force 13 Teal	2-1	W	USA	1953	1625	1749	+124	56	1.00
2026-04-03	CVC 13 BLUE	1-2	L	USA	1878	1627	1625	-2	54	1.00
2026-01-19	Elevation 13 Peak	0-2	L	ELITE	1698	1661	1627	-34	35	1.00
2026-01-18	ARVC 13 Black Adidas	1-2	L	ELITE	1681	1693	1661	-32	32	1.00

Roster (11 players)

#	Name	Position	Grad Year
28	Zoey Beasley	Left	2031
9	Zoie Burgess	Libero	2031
7	Madeline Feddersen	Right	2030
33	Samantha Harmes	Middle	2030
3	Jillian Paulo	Libero	2030
18	Harper Reilly	Right	2031
15	Amalie Rintala	Left	2031
1	Brooklyn Trammell	Left	2031
2	Savannah Trenck	Setter	2031
8	Finley Wilson	Setter	2032
4	Melaina Wittler	Middle	2030

Coaching Staff

Malcolm Grimes
Assistant Coach

Vanessa Hacker
Assistant Coach

Kevin Marquis
Assistant Coach

sarah reilly
Assistant Coach

Tammy Shotkoski
Head Coach

Frequently asked questions

Where is CoJrs 13-Tammy ranked?

CoJrs 13-Tammy is the #37 ranked girls 13 club volleyball team in the country for the 2025-2026 season, with an Elo rating of 2120 based on 35 matches. Rankings update daily after match results.

What is CoJrs 13-Tammy's record this season?

23 wins, 12 losses (66% win rate) across 35 matches in the 2025-2026 season. Every match played against any opponent in the country counts toward this record.

What club does CoJrs 13-Tammy compete for?

CoJrs 13-Tammy is part of CoJrs, based in Boulder, CO. View the full CoJrs club page to see every team in the program and the club's overall ranking.

Who plays for CoJrs 13-Tammy?

CoJrs 13-Tammy carries a roster of 11 players including Zoey Beasley, Zoie Burgess, Madeline Feddersen. The full roster below lists each player's position, class year, height, and college commitment when available.

How are VolleyLens team rankings calculated?

VolleyLens uses an Elo rating system tuned for volleyball: every team starts at 1500, ratings update after every match using K-factor 32 with margin-of-victory adjustment, and a strength-of-schedule multiplier accounts for opponent difficulty. Read the full methodology at /insights/volleylens-volleyball-ranking-methodology.