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University of Hawai'i at Manoa Athletics

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2025 Softball Roster

Shane Rodrigues

14 Addison Kostrencich

14 Addison Kostrencich

  • Position:
    Right-Handed Pitcher
  • Height:
    5-11
  • B/T:
    R/R
  • Class:
    Redshirt Senior
  • Hometown:
    Rancho Palos Verdes, Calif.
  • Highschool:
    Palos Verdes HS

Summary

Biography

Senior (2025)
Big West Pitcher of the Week (2/24/25)
2025 Academic All-Big West
  • Appeared in 29 games with 27 starts at pitcher
  • Recorded 12 complete games—including a pair of complete-game shutouts against Nevada (2/21/25) at the Mary Nutter Collegiate Classic (Cathedral City, Calif.) and vs. Howard (2/26/25)
  • Finished season ranked third in the Big West with 27 starts
  • Concluded collegiate career with a 13-11 overall record and an ERA of 3.81 as a senior
  • Recorded a career-high 47 strikeouts while posting 30 walks in a career-high 141.1 total innings of work
  • Struck out a career-high seven batters against Southern Indiana (2/7/25)
  • Did not walk a batter in 11 of her appearances this year and finished the season ranked No, 3 in the Big West and 41 in the NCAA DI averaging just 1.49 walks per game
2024 (Junior)
  • Appeared in 26 games with 24 starts at pitcher
  • Emerged early on as UH's primary starter in the circle 
  • Tossed 15 complete games with two shutouts
  • Fired a team-high 131.2 innings with a team-best 3.67 ERA for the season
  • Had 33 In walks to 35 strikeouts
  • In her Rainbow Wahine debut, fired a two hit, complete-game shutout over Kansas City (Feb. 9) striking out a season-high six 'Roos
Prior to UH:
  • Played three seasons (redshirted junior season) appearing in ten games at Long Beach State
  • Pitched 16 total innings, allowing 29 hits, 25 runs (18 earned) with seven strikeouts and seven walks 
  • Recorded a season-high two strikeouts against Arkansas (2/12/22)
  • Helped The Beach capture a pair of Big West titles in 2021 and 2023
Prep:
  • A 2020 graduate of Palos Verdes High School in Palos Verdes Estates, Calif.
  • Earned four varsity letters in softball
  • Helped the Sea Kings to win back-to-back league championship in 2018 and '19 
  • Earned all-league pitching honors honors all four years
  • Ended her senior season with a 0.70 ERA
  • Finished high school career with 316 strikeouts in 313 innings pitched
Personal:
  • Majoring in communications
  • Born in Long Beach, California
  • Has three older sisters
  • Parents are Karen and Frank Kostrencich of Rancho Palos Verdes, Calif.
  • Played for the club team Firecrackers TJ Houshmandzadeh for five years
  • U14 national champions
  • Finished in the top eight nationally at both the U16 and U18 level
  • Has been a member of the Croatian National Softball Team since 2018 and will travel there in the summers of 2024 and '25 for the European Cup
CARER GAME HIGHS/LOWS
Pitching Game Highs/Lows
  • Innings Pitched (Low): 0.1, at CSUN (4/23/25)
  • Innings Pitched (High): 10.0, Cal State Fullerton (5/3/24)
  • Runs Allowed (Low): 0(6x), last UC Riverside (4/5/25)
  • Runs Allowed (High): 8(2x), last UC Davis (3/22/25-GM1)
  • Earned Runs Allowed (Low): 0 (7x), last UC Riverside (4/5/25-GM2)
  • Earned Runs Allowed (High): 8(2x), last UC Davis (3/22/25-GM1)
  • Walks Allowed (Low): 0 (17x), last at Cal State Fullerton (5/8/25)*
  • Walks Allowed (High): 4, Cal State Fullerton (5/3/24)
  • Strikeouts (Low): 0(16x), last at Cal State Fullerton (5/8/25)*
  • Strikeouts (High): 7, Southern Indiana (2/7/25)
  • Hits Allowed (Low): 1, at UC Santa Barbara (3/16/24-2)
  • Hits Allowed (High): 13, Ole Miss (2/11/24)
  • Doubles Allowed: 3(4x), last UC Santa Barbara (4/19/25-GM1)
  • Triples Allowed: 1 (11x), last vs. Long Beach State (5/7/25)*
  • Home Runs Allowed: 2(8x) last UC San Diego (5/3/25 - GM1)
  • Wild Pitches: 2(2x), last vs. UC Santa Barbara (5/9/25)*
  • Hit batters: 1(14x), last at Cal State Fullerton (5/8/25)*
Defensive Game Highs:
  • Put-outs: 2, Cal State Fullerton (5/3/24)
  • Assists: 5(2x), last Howard (2/26/25)
  • Errors: 1(2x), last vs. UC Santa Barbara (4/25/25) -San Luis Obispo, Calif.
*=at 2025 Big West Championship (Fullerton, Calif.)
 
 
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Season:
2025
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Historical Player Information

  • 14

    2024Redshirt Junior

    Right-Handed Pitcher
    5'11"
    14
  • 14

    2025Redshirt Senior

    Right-Handed Pitcher
    5'11"
    14