Trenarys Trade Roles, Mendon Reigns On

October 8, 2015

By Wes Morgan
Special for Second Half

Volleyball found Bill Trenary early on. Actually, countless volleyballs did.

“I was getting hit in the head with volleyballs before I could walk,” the Mendon High School varsity coach, now in his second year at the helm, said. “There’s a very good story about me getting knocked out of a walker in this very gym. I started managing when I was in second grade. Ever since then I’ve been in the gym playing volleyball.”

His mother, Michigan High School Volleyball Coaches Association 2014 Hall of Fame inductee Kathy Trenary, spent more than three decades guiding prep squads, most notably a 19-year run at Mendon that netted 721 victories, 10 conference championships, 15 district titles, six regional crowns, trips to six MHSAA Semifinals and championship victories in 1998, 1999 and 2001.

Growing up around the game undoubtedly sparked Bill Trenary’s interest in the sport. Like most boys, however, he was just as engrossed in other athletic and leisurely pursuits. He enjoyed the outdoors, beating his mother on the squash court and obsessively studying opening chess moves — a competitive fire serving as the common thread.

One unique experience in particular was likely what set Bill Trenary up for a successful career in volleyball.

His parents put a premium on experiencing other cultures. His father, Robert Trenary, was a Fulbright scholar at the University of Botswana when Bill was in the eighth grade. That enabled the Trenary family to live abroad for a year. Bill Trenary ended up setting for his school’s varsity team, which played outdoors under the African sun.

Bill and younger brother Matt went on to play intramural volleyball at the University of Michigan.

“They tried to win the championship but could never do it because a lot of kids on the team just wanted to play,” Kathy Trenary said. “I’d go to Ann Arbor and watch them play. That was great.”

It was about that time when Kathy Trenary took over as head coach at Vicksburg. It was an opportunity for Bill Trenary to fire some high-velocity shots inside high school gyms like those he remembered zipping at him as a toddler.

“I was in my 50s at the time and I said, ‘I really need a hitting boy,” she recalled. “I said, ‘would you like to come and be a hitting boy?’ He really identified with how much he liked (volleyball). He played it all growing up, but he maybe never realized how much he liked it until he started to coach it.

“He just found it fascinating; he has always been a gamer.”

In the years since then, Bill Trenary learned from the best, leading to his takeover of the Mendon program in 2014. Kathy Trenary stayed on as his assistant coach and the continuity was evident with the Hornets’ run to the Class D semifinals in 2014, which ended in a 3-0 loss to Battle Creek St. Philip. The arrangement has been seamless for the Hornets, who are currently ranked No. 6 in the latest MIVCA Class D poll.

“When we decided to switch, part of the reason was her being kind to me, I guess,” Bill Trenary said. “She saw me getting better. It was time for me to kind of step into that role. I think I’m a little better game coach because I’m younger and I can push through long Saturday tournaments and make the quick decisions on the court.

“She is absolutely one of the best coaches I’ve ever seen — attention to detail and running practices. She’ll run most of the drills because, heck, she invented most of the drills. Not utilizing her in that role would just be stupid. Me taking that away from her would just cost us points. There’s no reason not to be doing that when we have someone of that caliber.”

A fan of Tom Tango’s book “Playing the Percentages in Baseball,” Bill Trenary strongly believes in analytics and that some statistical aspects of volleyball are often overlooked and undervalued.

As are role players, which there are more of this year than freak athletes. That’s often the case at a small school such as Mendon, where fundamentals help offset height disadvantages.

This year Mendon has a “huge arm” in junior hitter Megann Leighton, exceptional leadership from seniors Brandy DeLeeuw and Emma Eberstein, lockdown play from junior libero Kaley Smith and reliable and consistent setting from junior Cassie Plummer.

“That’s how other teams see us win, but the way we win is when Nancy Steinacker can come and serve a string in our weak rotation,” Bill Trenary pointed out.

The points are in the details.

“We don’t have the best athletes every year, but we have a deep knowledge of the game, which is fun,” he said. “I’ve just tried to build on that. I know we’re using more math, more stats, more film than we have. That’s just a next generation sort of thing, but we’re not trying to reinvent the wheel."

Wes Morgan has reported for the Kalamazoo Gazette, ESPN and ESPNChicago.com, 247Sports and Blue & Gold Illustrated over the last 12 years and is the publisher of JoeInsider.com. He can be reached at [email protected] with story ideas for Berrien, Cass, St. Joseph and Branch counties.

PHOTOS: (Top) Mendon coach Bill Trenary, far left, huddles with his team during a match this season. (Middle) Mendon assistant Kathy Trenary, left, remains in the program as her son's assistant. (Photos courtesy of Nicci Plummer.)

Story in Photos: 2025 Volleyball Division 1 & 4 Semifinals

By Geoff Kimmerly
MHSAA.com senior editor

November 20, 2025

BATTLE CREEK – The first day of these MHSAA Girls Volleyball Semifinals saw three of four matches go five sets over 10 hours at Kellogg Arena, with the dramatic moments starting early and ending when the final point hit the floor.

All of the excitement set up Saturday's Division 1 and 4 championship matches, and possibilities for first-time champions in both – but with highly-ranked contenders hoping to stand in the way of those aspirations.  

Saturday’s first two title matches will see the following face off:

10 a.m. – Division 4 – Fowler (35-8-2) vs. Mendon (38-6-1)
Noon – Division 1 – Farmington Hills Mercy (41-5-3) vs. Bloomfield Hills (43-6-1)

Mendon is seeking its first Finals championship since 2019, and Fowler its first in program history. They finished Nos. 1 and 2, respectively, in the final regular-season coaches poll.

Mercy, No. 3 in the final Division 1 rankings, most recently won the Division 1 title in 2023. No. 2 Bloomfield Hills has never won a Finals title – but ended an incredible run by top-ranked Rockford on Thursday to earn the opportunity. 

Division 2 and 3 Semifinals will be played Friday. Click here for more.

Hockey Weekly Action Photos captured the following from Thursday’s action.

Bloomfield Hills senior Kayla Nwabueze sends a kill attempt into a Rockford block during the Black Hawks' 25-19, 22-25, 21-25, 25-22, 15-13 win over Rockford.

Bloomfield Hills senior Kayla Nwabueze (far right) sends a kill attempt into a Rockford block during the Black Hawks' 25-19, 22-25, 21-25, 25-22, 15-13 win over Rockford. Nwabueze finished with 43 kills, which are tied for second-most for a single match during the MHSAA Semifinals or Finals since the start of the rally scoring era in 2004-05. 

Rockford senior Liv Hosford (1) sends a kill attempt into the block of Bloomfield Hills junior Brynn Wilcox (2) and freshman Emily Nwabueze (8). Hosford had 23 kills for the Rams, who finished 46-2-1.

Farmington Hills Mercy junior Kate Kalcynski (2) attempts to slam a kill past Byron Center senior Lainey VanTol (5) and junior Cara Crittendon during the Marlins’ 25-27, 24-26, 25-16, 25-17, 16-14 victory. Kalcynski totaled 30 kills and 21 digs.

Farmington Hills Mercy junior Kate Kalcynski (2) attempts to slam a kill past Byron Center senior Lainey VanTol (5) and junior Cara Crittendon during the Marlins’ 25-27, 24-26, 25-16, 25-17, 16-14 victory. Kalcynski totaled 30 kills and 21 digs.

Byron Center junior Caitlin Hartson (1) attempts to get a kill over the Mercy block of Kalczynski and sophomore McKenzie Andrews (12).

Byron Center junior Caitlin Hartson (1) attempts to get a kill over the Mercy block of Kalczynski and sophomore McKenzie Andrews (12). Hartson finished with 16 kills as the Bulldogs ended their season 37-6-2.

Mendon junior Karyssa Holtz (3) sets as teammates Cienna Nightingale (9) and Sabrina Monroy make their moves toward the net.

Mendon junior Karyssa Holtz (3) sets as teammates Cienna Nightingale (9) and Sabrina Monroy make their moves toward the net. Holtz finished with 40 assists, Nightingale had six kills and Monroy had four in Mendon’s 25-18, 25-22, 27-25 win.

Ubly senior Sophi Heleski (4) elevates for a kill attempt.

Ubly senior Sophi Heleski (4) elevates for a kill attempt. She finished with three kills and four digs for the Bearcats (30-11-4).

Fowler players celebrate their 26-24, 30-28, 20-25, 19-25, 15-8 win over Crystal Falls Forest Park in the day’s first match.

Fowler players celebrate their 26-24, 30-28, 20-25, 19-25, 15-8 win over Crystal Falls Forest Park in the day’s first match.

Forest Park junior Vienna Price (4) sets with senior Elsie Williams (2) ready for the next attack

Forest Park junior Vienna Price (4) sets with senior Elsie Williams (2) ready for the next attack. Price had 17 assists and Williams had 32. The Trojans finished this season 42-2.

TOP PHOTO Bloomfield Hills players celebrate their five-set comeback win over Rockford on Thursday at Kellogg Arena.