Here is the full list of all 144 Out of the Park Baseball 21 achievements.
Win the hitting triple crown
40 Game Save Streak
Complete all goals your owner tasks you with
3000 Career Wins
Throw out 3 runners on the bases
Hit a walk-off HR
Score 4 runs in a game
Get 5 RBI in a game
Have every player in the lineup get a hit
Come back from a 4 run deficit to win
Strand the bases loaded
Hit a Grand Slam
CG with no BB allowed
Steal Home
6 hits in an inning
Successfully construct a dynasty for your owner
Shared Shutout for the team
4 hit game
Walk-off hit
Strike out 10 batters in a game
3 extra-base hits in a game
Score 6 runs in an inning
Bat around in an inning
Throw out 2 runners on the bases
3 HR in an inning
2 HR Game
Trade for a recent MVP winner
Turn an unassisted Triple Play
16 Game Run Streak
Win the championship on a low budget
13 Game Run Streak
Win the pitching triple crown
40/40 Player
MVP of the All-star game
1500 Career Wins
30 Game Hit Streak
30 Game Save Streak
Trade for a recent all-star
10 Game RBI Streak
Win the pitcher of the year award
Have a player lead the league in ERA
20 Game Win Streak
30/30 Player
20/20 Player
Win the championship
13 Game RBI Streak
20 Game Hit Streak
Win the championship in a sweep
Have a player lead the league in wins
Have a player lead the league in HR
500 Career Wins
Record a 12-game win streak
6 game HR streak
10 Game Win Streak
Win the rookie of the year award
Win the manager of the year award
Achieve a top season score
Sweep a playoff series
Reach the finals
15 Game Win Streak
9 Game Run Streak
Turn a Triple Play
Win the MVP
Win a fielder of the year award
Achieve a great season score
Reach the post-season
Record a 16-game win streak
20 Game Save Streak
Have the top vote-getter for the All-Star Game
Win the batter of the month
Win the Reliever of the Year award
Achieve a solid season score
4 game HR streak
Complete an Owner Goal
Have a player lead the league in BA
Record an 8-game win streak
Win the pitcher of the month
7 Game RBI Streak
Win a silver slugger
Win the rookie of the month
5 hit game
6 hit game
3 HR Game
4 HR Game
Score 5 runs in a game
Score 6 or more runs in a game
Get 8 RBI in a game
Get 10 or more RBI in a game
Strike out 15 batters in a game
Strike out 18 batters in a game
Hit a walk-off Grand Slam
Hit for the cycle
Closer strikes out the side
Pitch a shutout
Pitch a no-hitter
Pitch a perfect game
Score 10 runs in an inning
Score 15 runs in an inning
Score 15 runs in a game
Score 20 runs in a game
Score 30 runs in a game
Score 10 runs in a shutout
Score 15 runs in a shutout
Score 20 runs in a shutout
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
7 game HR streak
40 Game Hit Streak
50 Game Hit Streak
3 DP in a game
5 DP in a game
6 DP in a game
Combined no-hitter
Throw out 4 runners on the bases
Throw a 1-hitter
4 extra-base hits in a game
5 extra-base hits in a game
5+ PA with no official AB in a game
Hit a leadoff HR
CG Shutout on under 100 pitches
9-pitch inning with 3 strikeouts
Achieve a pitching game score of at least 100
Hit for a natural cycle
3 SB in a game
4 SB in a game
5 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
9 hits in an inning
12 hits in an inning
Score every inning