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Nebraska’s 15U Standouts from Wave 4 of AAU Nationals

Nebraska’s 15U Standouts from Wave 4 of AAU Nationals
Austin Kingsley
Austin Kingsley July 10, 2025 @ 08:00 AM
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In this article:

Calleigh Chmelka
Calleigh Chmelka 5'9" | OH/RS | 2028
NE
Berkeley Osborne
Berkeley Osborne 5'8" | S | 2028
NE
Althea Brodersen
Althea Brodersen 5'6" | S | 2028
NE
Lilly Wong
Lilly Wong 5'10" | MB | 2028
NE
Reese Timmerman
Reese Timmerman 5'5" | DS/L | 2028
NE
<!-- wp:paragraph --> <p>We're looking back at Orlando.</p> <!-- /wp:paragraph --> <!-- wp:paragraph --> <p>As promised, our July coverage is jumping all around the Nationals landscape as we digest all the happenings from AAUs to USAV GJNC. We've had plenty of time to review film and gather observations, giving us a better grasp of Nebraska's breakout performers and individual standouts.</p> <!-- /wp:paragraph --> <!-- wp:paragraph --> <p>Wave 4 of AAU Nationals was packed with 15U teams from the Cornhusker State, and we got a great glimpse into the future with this wave's up-and-coming athletes. The Class of 2028 continues to deliver.</p> <!-- /wp:paragraph --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_player":["779511"],"_player_evaluations_0_player":"field_62ab9d62ecf2c","player_evaluations_0_override_profile_image":"","_player_evaluations_0_override_profile_image":"override-player-profile-image","player_evaluations_0_not_in_database":"","_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb02d"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">Chmelka has emerged as Nebraska Juniors 15 Black's driving force on the outside. The Lincoln Northeast standout brings a ton of on-court energy and matches it with an explosive approach along the net. Chmelka exhibited her full range at AAU Nationals, which included some crafty tool shots and an indefensible crosscourt heater. We're eager to see Chmelka add to the list of Lincoln-area prep stars this fall.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_not_in_database":["not_in_db"],"_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations_0_player_details_selected_featured_image":"","_player_evaluations_0_player_details_selected_featured_image":"field_62cca28ffa4e7","player_evaluations_0_player_details_player_name":"Claire Trusty","_player_evaluations_0_player_details_player_name":"field_62aba4c9ecf2f","player_evaluations_0_player_details_graduating_class":"2028","_player_evaluations_0_player_details_graduating_class":"field_62aba4ddecf30","player_evaluations_0_player_details_height":"5'11u0022","_player_evaluations_0_player_details_height":"field_62aba4e8ecf31","player_evaluations_0_player_details_position":"32564","_player_evaluations_0_player_details_position":"field_62aba4f0ecf32","player_evaluations_0_player_details_school":"Beatrice","_player_evaluations_0_player_details_school":"field_62aba4fdecf33","player_evaluations_0_player_details_club_team":"Nebraska Juniors","_player_evaluations_0_player_details_club_team":"field_62d20e723441a","player_evaluations_0_player_details":"","_player_evaluations_0_player_details":"field_62aba4afecf2e","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb161"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">We expected to learn a lot about Nebraska Juniors 15 Red at AAU Nationals. That scouting opportunity has allowed Trusty to enter the spotlight as a multi-dimensional frontcourt attacker. The Beatrice native has an extensive background as a middle blocker but showcased her pin-hitting repertoire in Orlando. Her long, athletic frame makes her an ideal outlet at either position, and Trusty's takeover potential will factor heavily into 15 Red's plans for future seasons.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_player":["730564"],"_player_evaluations_0_player":"field_62ab9d62ecf2c","player_evaluations_0_override_profile_image":"","_player_evaluations_0_override_profile_image":"override-player-profile-image","player_evaluations_0_not_in_database":"","_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb1e2"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">Nebraska Elite loomed large in multiple waves of AAU Nationals. Timmerman was a valuable asset for Nebraksa Elite 15 Koa and provided an immediate spark as a DS in the middle-back area. We became acquainted with Timmerman's skills at last year's Prep Dig Freshman Showcase, and she was a high-impact freshman with Norfolk Catholic soon after. This small-town star has made a big impression at almost any venue.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_player":["774631"],"_player_evaluations_0_player":"field_62ab9d62ecf2c","player_evaluations_0_override_profile_image":"","_player_evaluations_0_override_profile_image":"override-player-profile-image","player_evaluations_0_not_in_database":"","_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb25c"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">We've highlighted Wong's game-changing termination before. She soars above the net tape and delivers in-system gems for Nebraska Elite 15 Prime. Wong's physicality allows her to handle various tempos in the front row, making her a worthy first-ball option in almost any situation. 15 Prime's top-five placement at AAU Nationals was the culmination of a tireless team effort and several breakthrough weekends on the regional stage.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_player":["774682"],"_player_evaluations_0_player":"field_62ab9d62ecf2c","player_evaluations_0_override_profile_image":"","_player_evaluations_0_override_profile_image":"override-player-profile-image","player_evaluations_0_not_in_database":"","_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb2aa"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">We've been fortunate enough to cover [program_tooltip program_id='428728' first='River' last='City Jrs'] 15 Navy's steady growth and evolution this year. Much of that development can be attributed to Brodersen's reliability in the starting rotation. This versatile setter delivers consistent locations to her frontcourt hitters and gets her feet to the ball when tracking down errant passes. Brodersen also plays stingy right-back defense to complement 15 Navy's formidable floor defense. Her all-around influence remains a key asset in the [program_tooltip program_id='428728' first='River' last='City Jrs'] gym.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_not_in_database":["not_in_db"],"_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations_0_player_details_selected_featured_image":"","_player_evaluations_0_player_details_selected_featured_image":"field_62cca28ffa4e7","player_evaluations_0_player_details_player_name":"Lilly Berstler","_player_evaluations_0_player_details_player_name":"field_62aba4c9ecf2f","player_evaluations_0_player_details_graduating_class":"2028","_player_evaluations_0_player_details_graduating_class":"field_62aba4ddecf30","player_evaluations_0_player_details_height":"5'2u0022","_player_evaluations_0_player_details_height":"field_62aba4e8ecf31","player_evaluations_0_player_details_position":"32926","_player_evaluations_0_player_details_position":"field_62aba4f0ecf32","player_evaluations_0_player_details_school":"","_player_evaluations_0_player_details_school":"field_62aba4fdecf33","player_evaluations_0_player_details_club_team":"[program_tooltip program_id='428728' first='River' last='City Jrs']","_player_evaluations_0_player_details_club_team":"field_62d20e723441a","player_evaluations_0_player_details":"","_player_evaluations_0_player_details":"field_62aba4afecf2e","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb33a"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">We're digging deeper into [program_tooltip program_id='428728' first='River' last='City Jrs']'s strong group of 15U athletes. Berstler has distinguished herself in the 15 Red lineup, and that's not just because she dons the contrasting libero jersey. This instinctive defender also sets the tone for 15 Red's defense and has excelled as a secondary setter, too. Several marathon rallies and long, grueling matches punctuated 15 Red's 8-3 record in Orlando. Berstler kept the team in it throughout.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block --> <!-- wp:acf/evaluation-block {"name":"acf/evaluation-block","data":{"player_evaluations_0_not_in_database":["not_in_db"],"_player_evaluations_0_not_in_database":"field_62aba48cecf2d","player_evaluations_0_player_details_selected_featured_image":"","_player_evaluations_0_player_details_selected_featured_image":"field_62cca28ffa4e7","player_evaluations_0_player_details_player_name":"[player_tooltip player_id='779001' first='Berkeley' last='Osborne']","_player_evaluations_0_player_details_player_name":"field_62aba4c9ecf2f","player_evaluations_0_player_details_graduating_class":"2028","_player_evaluations_0_player_details_graduating_class":"field_62aba4ddecf30","player_evaluations_0_player_details_height":"5'7u0022","_player_evaluations_0_player_details_height":"field_62aba4e8ecf31","player_evaluations_0_player_details_position":"32561","_player_evaluations_0_player_details_position":"field_62aba4f0ecf32","player_evaluations_0_player_details_school":"","_player_evaluations_0_player_details_school":"field_62aba4fdecf33","player_evaluations_0_player_details_club_team":"[program_tooltip program_id='428696' first='Club' last='Legacy Volleyball Academy']","_player_evaluations_0_player_details_club_team":"field_62d20e723441a","player_evaluations_0_player_details":"","_player_evaluations_0_player_details":"field_62aba4afecf2e","player_evaluations":1,"_player_evaluations":"field_62aba7547dc44"},"mode":"preview","alignText":"left","anchor":"acf-block-686e702edb3c8"} --> <!-- wp:paragraph {"placeholder":"Add evaluation here...","className":"text-gray-700"} --> <p class="text-gray-700">Club Legacy 15 Bravo has brought several new 2028s to our attention after the team's stint in Orlando. Osborne has earned praise for her persistent command of the 15 Bravo offense throughout the 2025 campaign. She can play around the dial at the setter spot, allowing the team to lean on Osborne's stabilizing presence in the frontcourt. Osborne also has a knack for finding the hot hand and knowing when to spread the ball around.</p> <!-- /wp:paragraph --> <!-- /wp:acf/evaluation-block -->

We're looking back at Orlando.

Calleigh Chmelka

Calleigh Chmelka

NE
OH/RS
HEIGHT 5'9"
POS OH/RS
CLASS 2028
View Player
​
Calleigh
Chmelka OH/RS
Class
2028
Height
5'9"
HS
Lincoln Northeast
|
NE
Nebraska’s 15U Standouts from Wave 4 of AAU Nationals
Chmelka has emerged as Nebraska Juniors 15 Black’s driving force on the outside. The Lincoln Northeast standout brings...
Written by Austin Kingsley
Read more at PrepDig.com
Prep Dig

Calleigh Chmelka

State: Nebraska
School: Lincoln Northeast
Club: Nebraska Juniors Volleyball Club
Subscribe below to view this player's evaluation

Highlights

Claire Trusty

Claire Trusty

HEIGHT 5'11"
POS OH
CLASS 2028

Claire Trusty

School: Beatrice
Club: Nebraska Juniors
Subscribe below to view this player's evaluation
Reese Timmerman

Reese Timmerman

NE
DS/L
HEIGHT 5'5"
POS DS/L
CLASS 2028
View Player
​
Reese
Timmerman DS/L
Class
2028
Height
5'5"
HS
Norfolk Catholic
|
NE
Nebraska’s 15U Standouts from Wave 4 of AAU Nationals
Nebraska Elite loomed large in multiple waves of AAU Nationals. Timmerman was a valuable asset for Nebraksa Elite...
Written by Austin Kingsley
Read more at PrepDig.com
Prep Dig

Reese Timmerman

Instagram Twitter
State: Nebraska
School: Norfolk Catholic
Club: Nebraska Elite Volleyball
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Highlights

Lilly Wong

Lilly Wong

NE
MB
HEIGHT 5'10"
POS MB
CLASS 2028
View Player
​
Lilly
Wong MB
Class
2028
Height
5'10"
HS
Elkhorn South
|
NE
Nebraska’s 15U Standouts from Wave 4 of AAU Nationals
We’ve highlighted Wong’s game-changing termination before. She soars above the net tape and delivers in-system gems for Nebraska...
Written by Austin Kingsley
Read more at PrepDig.com
Prep Dig

Lilly Wong

State: Nebraska
School: Elkhorn South
Club: Nebraska Elite Volleyball
Subscribe below to view this player's evaluation

Highlights

Althea Brodersen

Althea Brodersen

NE
S
HEIGHT 5'6"
POS S
CLASS 2028
View Player
​
Althea
Brodersen S
Class
2028
Height
5'6"
NE
Nebraska’s 15U Standouts from Wave 4 of AAU Nationals
We’ve been fortunate enough to cover River City Jrs 15 Navy’s steady growth and evolution this year. Much...
Written by Austin Kingsley
Read more at PrepDig.com
Prep Dig

Althea Brodersen

State: Nebraska
Club: River City Jrs
Subscribe below to view this player's evaluation

Highlights

Lilly Berstler

Lilly Berstler

HEIGHT 5'2"
POS DS/L
CLASS 2028

Lilly Berstler

Club: River City Jrs
Subscribe below to view this player's evaluation
<span class="pn-tooltip pn-player-link">
        <span class="name-pointer">Nebraska’s 15U Standouts from Wave 4 of AAU Nationals</span>
        <span class="info-box not-prose" style="background: linear-gradient(to bottom, rgba(23,90,170, 0.95) 0%,rgba(23,90,170, 1) 100%)">
            <a href="https://prepdig.com/2025/07/nebraskas-15u-standouts-from-wave-4-of-aau-nationals/" class="link-wrap">
                                    <span class="player-img"><img src="https://prepdig.com/wp-content/uploads/sites/5/2025/07/IMG_6051-crop-2791x1833-1752067109.jpg?w=150&h=150&crop=1" alt="Nebraska’s 15U Standouts from Wave 4 of AAU Nationals"></span>
                
                <span class="player-details">
                    <span class="first-name">Nebraska’s</span>
                    <span class="last-name">15U Standouts from Wave 4 of AAU Nationals</span>
                    <span class="measurables">
                                            </span>
                                    </span>
                <span class="player-rank">
                                                        </span>
                                    <span class="state-abbr"></span>
                            </a>

            
        </span>
    </span>

Berkeley Osborne Berkeley Osborne 5'8" | S Bennington | 2028 NE

HEIGHT 5'7"
POS S
CLASS 2028

Berkeley Osborne Berkeley Osborne 5'8" | S Bennington | 2028 NE

Club: Club Legacy Volleyball Academy
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