Here is the full list of all 144 Out of the Park Baseball 20 achievements.
10 Game Win Streak
3 HR Game
Score 15 runs in an inning
Score 10 runs in an inning
Win the rookie of the month
13 Game Run Streak
Strike out 18 batters in a game
Score 20 runs in a shutout
30 Game Hit Streak
Score 5 runs in a game
3 DP in a game
Reach the finals
Closer strikes out the side
Sweep a playoff series
Have a player lead the league in HR
Have a player lead the league in wins
Have a player lead the league in ERA
Reach the post-season
20/20 Player
20 Game Win Streak
Throw out 2 runners on the bases
15 Game Win Streak
Record a 12-game win streak
Get 8 RBI in a game
Score 30 runs in a game
Throw a 1-hitter
Achieve a pitching game score of at least 100
Have the top vote-getter for the All-Star Game
20 Game Hit Streak
4 game HR streak
Score 4 runs in a game
Score 10 runs in a shutout
9 hits in an inning
Record a 16-game win streak
Walk-off hit
Score 15 runs in a game
Hit a Grand Slam
CG with no BB allowed
Score 15 runs in a shutout
9 Game Run Streak
Hit a walk-off HR
Get 5 RBI in a game
16 Game Run Streak
Pitch a shutout
7 Game RBI Streak
Come back from a 4 run deficit to win
Record an 8-game win streak
3 HR in an inning
Win the batter of the month
Win the pitcher of the month
Score 20 runs in a game
3 extra-base hits in a game
4 SB in a game
Have every player in the lineup get a hit
Score 6 runs in an inning
4 hit game
Strand the bases loaded
Hit a leadoff HR
2 HR Game
5 hit game
Hit for the cycle
4 extra-base hits in a game
Hit for a natural cycle
6 hits in an inning
Shared Shutout for the team
Strike out 15 batters in a game
Bat around in an inning
Strike out 10 batters in a game
6 hit game
4 HR Game
Score 6 or more runs in a game
Get 10 or more RBI in a game
Hit a walk-off Grand Slam
Pitch a no-hitter
Pitch a perfect game
Win the MVP
Win the pitcher of the year award
Win the rookie of the year award
Win a fielder of the year award
Win the hitting triple crown
Win the pitching triple crown
Have a player lead the league in BA
Trade for a recent all-star
Trade for a recent MVP winner
Win the championship
Win the championship in a sweep
Win the championship on a low budget
Win the manager of the year award
500 Career Wins
1500 Career Wins
3000 Career Wins
Achieve a solid season score
Achieve a good season score
Achieve a top season score
Complete an Owner Goal
Successfully construct a dynasty for your owner
Complete all goals your owner tasks you with
First Game Win
First Series Sweep
First Quality Start
First Save
First Home Run
First Stolen Base
First Trade
First Free Agent Signing
First Draft Pick
First Contract Extension
First All-Star
First Player of the Week award
6 game HR streak
7 game HR streak
40 Game Hit Streak
50 Game Hit Streak
10 Game RBI Streak
12 Game RBI Streak
20 Game Save Streak
30 Game Save Streak
40 Game Save Streak
Win the Reliever of the Year award
30/30 Player
40/40 Player
5 DP in a game
6 DP in a game
Combined no-hitter
Throw out 3 runners on the bases
Throw out 4 runners on the bases
Turn a Triple Play
Turn an unassisted Triple Play
5 extra-base hits in a game
5+ PA with no official AB in a game
Win a silver slugger
CG Shutout on under 100 pitches
9-pitch inning with 3 strikeouts
Steal Home
5 SB in a game
6 SB in a game
4 strikeout inning
Come back from a 7 run deficit to win
Come back from a 10 run deficit to win
4 HR in an inning
5 HR in an inning
12 hits in an inning
Score every inning
MVP of the All-star game