Greg Lonzo enters his 16th season at the helm of the CMS Men's and Women's Water Polo programs in 2023-24. The Stags have earned three SCIAC championships during that time in 2010, 2012 and 2015. In the 2015 season, the Stags were a perfect 11-0 in SCIAC, sweeping through the regular season and the SCIAC Championships to earn a berth to the first NCAA tournament for water polo. Over his career, the Stags have had a .719 winning percentage in SCIAC contents (123-48).
Lonzo coached the Stags to back-to-back appearances in the USA Water Polo Division III Championship game in 2019 and 2021 (around a lost year due to COVID-19). The 2019 team earned a bid with a dramatic 12-11 comeback win over Pomona-Pitzer in the SCIAC Semifinals, while the 2021 team captured it with a big road win over Cal Lutheran, and ended up taking Division III unbeaten Pomona-Pitzer into overtime in the national finals.
Lonzo is a 2002 graduate of Pepperdine University with a degree in Business Administration. He was a four-year varsity player and is the career leader in goals scored at Pepperdine, and was a three-time All-American and runner-up for National Player of the Year in 2002.
Lonzo has previously served as the Head Coach at the Riverside Water Polo Club, coaching both an 18-under and a 16-under team. He also served two years as an assistant coach at Claremont-Mudd-Scripps before taking over the head coaching position, and worked in over 20 water polo camps representing Pepperdine.