[4] In August 2022, Delos Santos was appointed as head coach of the University of the Philippines Fighting Maroons women's team.
[5] In 2017, he led a PSL selection team in the 2017 Annual Princess Maha Chakri Sirindhorn's Cup Volleyball Tournament in Sisaket, Thailand.
[6] PSL side Cignal HD Spikers tapped Delos Santos as an assistant coach to Edgar Barroga in January 2020.
He became the team's first coach in the Premier Volleyball League (PVL) after Cignal left the PSL.
[9] In 2018, Delos Santos was appointed as head coach of the Philippines women's national team replacing Ramil de Jesus.