Kjerstad entered his junior season as a preseason first team All-American selection by Perfect Game and by Collegiate Baseball Newspaper and as a top prospect for the 2020 Major League Baseball Draft.[14][15] He was named the SEC Player of the Week as well as the National Player of the Week by Collegiate Baseball for the first week of the season after going 7 for 13 with four home runs, 10 RBIs and six runs scored in the Razorbacks opening series against Eastern Illinois.[16][17] Kjerstad batted .448 with six home runs, 20 RBIs and 19 runs scored in 16 games before the season was cut short due to the coronavirus pandemic.[18]
Professional career
The Baltimore Orioles selected Kjerstad in the first round, with the second overall pick, in the 2020 Major League Baseball draft.[19] Kjerstad signed with the Orioles on June 30, 2020, for a $5.2 million bonus.[20] Kjerstad developed myocarditis after signing and missed spring training and all of the 2021 season.[21]
After beginning the 2022 season in extended spring training, Kjerstad made his professional debut on June 10, 2022, for the Single-A Delmarva Shorebirds.[22] In early July, he was promoted to the High-A Aberdeen IronBirds after batting .463 with 37 hits and 17 RBIs in 22 games with Delmarva.[23] Kjerstad batted .233/.312/.362 in 163 at bats in 43 games playing for the IronBirds.[24] Kjerstad played in the 2022 Arizona Fall League, where he batted .371/.400/.663, and led the league in at bats (89) and doubles (9), as he was second in strikeouts (27).[25]
The Orioles invited Kjerstad to spring training in 2023 as a non-roster player; he batted .381 with four home runs in 23 games before being reassigned to minor league camp.[26] Kjerstad began the 2023 season with the Double-A Bowie Baysox and started playing first base in addition to outfield.[27] He hit .310 (57-for-184)/.383/.576/.959 and was among the Eastern League top five in batting average, slugging percentage, on-base plus slugging (OPS), triples, home runs, extra-base hits and hits with the Baysox before his promotion to the Norfolk Tides on June 5.[28] His first Triple-A homer was a leadoff inside-the-parker in the seventh inning of an 8–4 away win over the Scranton/Wilkes-Barre RailRiders four days later on June 9.[29][30] Kjerstad was selected to play in the 2023 All-Star Futures Game.[31] Kjerstad batted .303 with 21 home runs and 55 RBI in 122 games between the two affiliates.
On September 14, 2023, Kjerstad was selected to the 40-man roster and promoted to the major leagues for the first time following an injury to Ryan Mountcastle.[32] He struck out as a pinch hitter for Jordan Westburg to lead off the eighth inning in a 4–3 loss to the Tampa Bay Rays in his MLB debut later that evening.[33] He got his first MLB hit in a 7–1 loss to the same opponent the following night on September 15 when he ended Zach Eflin's no-hitter attempt with a leadoff homer to right-center in the sixth.[34] In 13 games during his rookie campaign, he batted .233/.281/.467 with two home runs and three RBI.
Kjerstad was optioned to Triple–A Norfolk to begin the 2024 season.[35] He set a single-game Tides record with 10 RBIs in a 26–11 away win over the Charlotte Knights on April 3.[36] He went 5-for-7 with a pair of doubles and home runs each and four runs scored.[37] The Orioles promoted Kjerstad to the major leagues on April 23.[38] He went 2-for-14 with two walks and six strikeouts in seven games before returning to the Tides twenty days later on May 13.[39] Five days after his second recall of the campaign on June 24,[40] he hit his first major-league grand slam over the center-field wall off Michael Lorenzen with two outs in the fifth inning of a 6–5 home win over the Texas Rangers on June 29.[41]