[2][3] In UAAP Season 68, Kramer had a season-high 18 points alongside 12 rebounds and two blocks in a win over the NU Bulldogs.

[6] In Season 69, Kramer set a college career-high 19 rebounds along with 3 blocks and 16 points in Ateneo's 98–88 win over UP on August 20, 2006.

[9] In 2009, Kramer and JC Intal were shipped to the Barangay Ginebra Kings for draft picks.

[11] In 2010, Kramer was returned to Air21 alongside Rich Alvarez for Yancy de Ocampo and a draft pick.

[citation needed] Before the 2010 PBA draft, the Rain or Shine Elasto Painters traded for Kramer by sending Marcy Arellano to Air21.

[15] In his second conference with Rain or Shine, only behind import Hassan Adams, Kramer led his team both in scoring and rebounding among all locals at the end of eliminations of the 2011 Commissioners Cup.

[citation needed] Kramer led Powerade all the way to Game 5 of the finals against the eventual champions, Talk 'N Text, which beat them 4–1 in the series.

[17] Doug Kramer would eventually get traded on May 4, 2012 to the Barako Bull Energy Cola after playing 2 conferences with Powerade.

[citation needed] Kramer would play his first game as a Barako Bull player on May 25, 2012.

He would eventually finish the 2011–12 season on a high note as he would end up having the second-best rebounding average of 8.77 on 48 games played, only behind Arwind Santos' 10.67.

[20] On February 4, 2017, Kramer made his return to Phoenix with nine points and a team-high 12 rebounds in a loss to the Star Hotshots.

[27] As a family, they are active on social media, posting on their Facebook fan page Team Kramer.

[28] They were featured on the magazine cover of the June 2017 issue of Esquire Philippines for Father's Day.

[30] Kramer has six siblings: older brothers Lincoln and Mark, who currently live in California, younger sister Stacey who lives in London, and siblings Lauren, Karl Lewis and Brandy, who reside in the Philippines.