June 16 vs Yomiuri at ZOZO Marine – Bolsinger tossed a shutout against the Yomiuri Giants. He became the eleventh player since 1950 to record a shutout in his first game against the Giants, first since Yuta Iwasada on May 27, 2017; and the fourth foreign player, first since Stephen Randolph on October 2, 2009; and second player to accomplish the feat during an Inter-league game, first since Takahiro Norimoto on May 28, 2014.
Bolsinger also set a new Marines record for foreign pitchers by extending his personal winning streak to seven.
June 30 vs Softbank at YafuOku Dome – Bolsinger notched his tenth victory and became the first Pacific League pitcher to reach ten wins. He joined Tai-Yuan Kuo (1988), Kip Gross (1997), and Jeremy Powell (2002) as the only foreign pitchers in Pacific League history to achieve the feat.
Bolsinger also joined Bob Keppel (nine-game winning streak, 2010), Miles Mikolas (eleven-game winning streak, 2015), and Rick VandenHurk (nine-game winning streak, 2015) as the only foreign pitchers to record winning streaks of nine or more in their first year.
Source: Nikkan Sports 7/1/2018
July 7 vs Nippon Ham at ZOZO Marine – Bolsinger extended his winning streak to ten and joined Joe Stanka (eleven in 1964), Tai-Yuan Kuo (ten in 1988), and Miles Mikolas (eleven in 2015) as the only foreign players in NPB history to go on winning streaks of ten or more. He became the first foreign pitcher to start and win ten games in a row.
July 21 vs Orix at ZOZO Marine – Bolsinger recorded another win and pushed his streak to eleven.
Source: Nikkan Sports 7/21/2018
Bolsinger’s wife gave birth to the couple’s first child, a boy, at a hospital in Funabashi, Chiba at 11:03am on June 27, 2018.