During the 2026 World Baseball Classic held at Tokyo Dome, Shea Witcomb made a remarkable impact by hitting consecutive home runs against the Czech Republic, leading South Korea to an 11-4 victory. Initially, Witcomb did not impress during practice in Okinawa, especially considering he was a minor league home run champion with a total of 127 career home runs. However, once he found his rhythm, his contributions were pivotal, especially when he hit a crucial homer in the fifth inning that shifted the momentum of the game after South Korea was trailing 6-3.

After the game, Witcomb expressed the significance of representing Korea, stating that wearing the national team uniform held great pride and importance beyond just sports. In a heartfelt moment, he noted that he felt happy to share the joy of his success with his family, particularly highlighting the support of his Korean mother, who was present at the game. His spontaneous 'heart gesture' to the team’s coach, Ryu Ji-hyeon, was an unplanned expression of his happiness, encapsulating the relief and excitement of finally breaking the team's struggles with right-handed batting.

Witcomb's presence addresses a long-standing issue for the South Korean national team, which had been suffering from a shortage of right-handed batters due to the left-handed dominance in the KBO league. This imbalance had allowed opposing teams to exploit them, particularly by fielding left-handed pitchers. The team’s strategy to bolster its lineup with talent from the U.S. has the potential to change their fortunes in the World Baseball Classic, as evidenced by their improved performance in the match against the Czech team, alleviating pressure on the overall batting order.