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