[1] After missing the 2015 season due to a shoulder injury, Duplantier returned in 2016, and was named the Conference USA Pitcher of the Year.
[3] He made his professional debut with the Hillsboro Hops in June 2016, and pitched one inning there, striking out the side.
[15] On December 8, the Los Angeles Dodgers selected Duplantier from the Giants in the minor league phase of the Rule 5 draft.
[16] He appeared in 34 games (14 starts) for the Triple-A Oklahoma City Dodgers during the 2022 season, with a 5–3 record and 4.80 ERA.
[19] He made 3 starts for the Triple–A Lehigh Valley IronPigs, registering an 8.38 ERA with 12 strikeouts in 9+2⁄3 innings pitched.
[22] On July 11, 2024, Duplantier signed with the Lake Country DockHounds of the American Association of Professional Baseball.
[24] He made one start for the Double–A Tulsa Drillers and six for the Triple–A Oklahoma City Baseball Club, where he had a 3–2 record and 3.56 ERA in 30+1⁄3 innings.
[9] In his final start of the season, against the Salt Lake Bees, on September 18, Duplantier struck out a career–high 12 batters in six perfect innings.