Collegiate career Maizo started her collegiate volleyball career as a back-up setter of the
UST Golden Tigresses in
UAAP Season 68 volleyball, where they finished 4th place. In
UAAP Season 69 volleyball, she transitioned into an Opposite Hitter by Coach August Sta. Maria of UST. UST gets its 15th championship title, her first championship as a player in UAAP. She came back in
UAAP Season 71 volleyball as team captain and led UST into a Bronze finish. She was awarded as “Best Attacker” of the season. In
UAAP Season 72 volleyball, Maizo and the rest of UST Golden Tigresses defeated De La Salle University and hailed as UAAP Champions, her second championship title and UST’s 16th championship title in UAAP. On her last playing year in UAAP, Maizo received “Best Scorer” and “Best Receiver” awards and led UST into finals appearance but ended her collegiate career with a silver medal losing to arch-rival De La Salle University in
UAAP Season 73 volleyball. Maizo was a part of the 5 championship titles of UST in
Shakey's V-League.She and the UST Golden Tigresses hailed as back to back champions in
V-League 4th Season 1st Conference and
V-League 4th Season 2nd Conference against arch-rivals, San Sebastian College-Recoletos. In
V-League 5th Season 2nd Conference, UST loss to SSC-R in finals, Maizo bagged the “Best Server” of the season. She also led the UST Golden Tigresses into a 3-peat championship. In
V-League 6th Season 1st Conference, UST grabbed the championship against San Sebastian College-Recoletos and she was awarded as the “Best Blocker” of the conference. UST later on won the
V-League 6th Season 2nd Conference against Adamson University and she was hailed the firs player to be awarded with both “Conference MVP” and “Finals MVP” in the same conference. Maizo again led UST into a championship in
V-League 7th Season 1st Conference and won the “Best Attacker” and “Finals MVP” awards.
Semi-Professional Career Maizo-Pontillas had a short stint with
Philippine Air Force and
Philippine Navy as a guest player in Shakey’s V-League 8th Season Open Conference. She placed 4th with the
Philippine Navy team. She returned from a long volleyball hiatus in
Shakey's V-League 10th Season 1st Conference where she played with
UST Tigresses as a guest player. They settled with a bronze finish, losing to
Ateneo Lady Eagles in the semi-finals and winning to
Adamson Lady Falcons in the battle for bronze. She then debuted with
Cagayan Valley Lady Rising Suns in
Shakey's V-League 10th Season 2nd Conference where they end up Champion as they swept the conference from elimination to finals with 16-0 record. They defeated
Smart-Maynilad Net Spikers in the finals which both Game 1 and 2 ended up in 5 sets. In
Shakey's V-League 11th Season Open Conference, Maizo-Pontillas and
Cagayan Valley Lady Rising Suns finished with a silver medal, losing to
Philippine Army Lady Troopers in the finals. They avenged their defeat in
Shakey's V-League 11th Season Reinforced Open Conference winning the championship against
Philippine Army Lady Troopers. Maizo-Pontillas was hailed as “Finals MVP”, “Conference MVP”, and “Best Scorer”. In
Shakey's V-League 12th Season Open Conference, Maizo-Pontillas helped
Cagayan Valley Lady Rising Suns to finish with a bronze medal. She later won
Shakey's V-League 12th Season Reinforced Open Conference with
PLDT Home Ultera Fast Hitters. She played the
2016 PSL Invitational Cup with
Petron Tri-Activ Spikers winning a silver medal and the “Best Opposite Spiker” individual award. She later on won another silver medal in
2016 PSL Grand Prix Conference and was awarded as “2nd Best Opposite Spiker”. She once again finished with a silver medal in
2017 PSL Invitational Cup. Maizo-Pontillas won her first PSL title in
2017 PSL All-Filipino Conference with
Petron Blaze Spikers, beating
F2 Logistics Cargo Movers in the finals. She was awarded as the “Most Valuable Player” of the conference. In another title run with
Petron Blaze Spikers, Maizo-Pontillas settled for a silver finish in
2017 PSL Grand Prix Conference. The following year, she together with Stalzer,
Katherine Bell and
Rhea Dimaculangan led Petron to the
2018 PSL Grand Prix Conference championship. In
2018 PSL Invitational Cup, they finished with a silver finish losing to
F2 Logistics Cargo Movers. Maizo-Pontillas was awarded the “Best Opposite Spiker”. She ended the 2018 conferences with
Petron Blaze Spikers as a champion in
2018 PSL All-Filipino Conference. She was once again awarded the “Best Opposite Spiker”. Maizo-Pontillas with
Petron Blaze Spikers achieved back to back championship winning the
2019 PSL Grand Prix Conference against
F2 Logistics Cargo Movers. They however failed to defend their title in
2019 PSL All-Filipino Conference losing to
Cignal HD Spikers in the semi-finals. They settled with a bronze medal, beating
Foton Tornadoes in a 5-setter match. She ended her PSL career with a silver medal finish in
2019 PSL Invitational Conference, with
Petron Blaze Spikers losing to
F2 Logistics Cargo Movers in the finals. She was awarded “Best Opposite Spiker” in the end of the tournament.
Professional career Maizo-Pontillas debuted on
Premier Volleyball League in
2021 Premier Volleyball League Open Conference with
Sta. Lucia Lady Realtors. They failed to advance in semi-finals as they finished 5th in the end of the elimination round. She later on moved to
Petro Gazz Angels in 2022. As an Angel, she collected 3 golds from
2022 Premier Volleyball League Reinforced Conference,
2024–25 Premier Volleyball League All-Filipino Conference, and
2025 Premier Volleyball League Reinforced Conference; 2 silvers from
2022 Premier Volleyball League Open Conference and
2023 Premier Volleyball League First All-Filipino Conference; and 1 bronze from
2024 Premier Volleyball League All-Filipino Conference. In 2026, Maizo-Pontillas transferred to
Galeries Tower Highrisers following
Petro Gazz Angels' leave of absence from
Premier Volleyball League after seven seasons.
National team career Maizo-Pontillas debuted in the National Team in
2013 Asian Women's Volleyball Championship. They finished 12th place out of 16 teams. She was sidelined from the national team set to compete in the
2015 SEA Games Women’s Volleyball, but she was later hired as assistant coach for the games. In
2016 Women's Volleyball Thai-Denmark Super League, they placed last, tied with Hong Kong. She competed again in
2017 Asian Women's Volleyball Championship where they finished 8th place out of 14 teams. She grabbed her first international medal in the 2017 Princess Maja Chakri Sirindhorn's Cup where they end up with a bronze medal. Maizo-Pontillas then joined in
2018 Asian Women's Volleyball Cup where they settled for a 9th place finish out of 10 teams joined. She brought home another medal in
2019 ASEAN Grand Prix – First Leg where they won bronze, finishing 3rd in the round-robin out of 4 teams. In
2019 SEA Games Women’s Volleyball, she was included in the roster as a player this time. They failed to reach a podium finish, losing to Indonesia in the bronze medal match. She represented Philippines once again in
2023 Asian Women's Volleyball Challenge Cup where they finished 7th place out of 11 teams. ==Awards==