To easily max out your skills, first create a player and win some XP points. Go to "Player Area" and select "Player Evolution". Highlight a skill and press X to add the XP points. Then press X again and remove the XP points you just added. The XP you just added to the skill will remain and you will get the XP points back. Repeat this until all the skills are maxed out.
After creating your player and starting Career mode, every match you win will earn experience points. Disable the auto save feature. At Junior level, you will start earning 50, 70, or 100 experience points per match. You can accrue the points of two or three tournaments and you can spend them in the player area. When you finish improving the desired areas, save the player improvements and exit Career mode without saving your career progress. When you play Career mode again, the tournaments you played to improve will be there to be played again, as well as the player improvements.
ACHIEVEMENT - HOW TO UNLOCK Rookie award (10 points) - Beat the Amateur level in career. Newcomer Award (20 points) - Beat the Challenger level in career. Orange Prize (40 points) - Beat the Junior level in career. Legends Club (50 points) - Beat the Pro level in career. Lemon Prize (70 points) - Beat the Legend level in career. Two in a row (20 points) - Win 2 consecutive tournaments in the Pro level in career. Big Spender (40 points) - Unlock 300 items in the mall. Experienced (40 points) - Reach an Overall of 70 with a created player. Played cash. (30 points) - Win $5,000,000 in Career mode. Here you go! (5 points) - Create a player with the Player Creator. Big names club (20 points) - Beat the Hall Of Fame in career mode on hard difficulty. Trigger Happy (20 points) - Hit 500 winners from the baseline in singles matches. First liner (30 points) - Hit 250 winners at the net in singles matches. Mean server (20 points) - Serve 100 aces in singles matches. 2K award (20 points) - Win 2000 points in singles matches. Faster this way (20 points) - Serve at least 10 aces in a singles match. No kidding (20 points) - Win a singles match with at least 30 winners, less than 10 unforced errors on hard difficulty. Men’s award (25 points) - Win a singles match with 5 sets per match and 6 games per set on hard difficulty. Focused award (15 points) - Win a singles match with 3 sets per match and 3 games per set with less than 10 unforced errors. Rusher award (15 points) - Win a singles match with 3 sets per match and 3 games per set with at least 20 winners at net. Not that tough (20 points) - Win 10 consecutive singles matches on hard difficulty without dropping serve. Court Regular (30 points) - Play 100 matches (singles or doubles, in any game mode). World premiere (20 points) - Win a World Tour match. Keep it up (20 points) - Win 5 consecutive World Tour matches. It's all about timing, see? (40 points) - Win 10 consecutive World Tour matches. World career (30 points) - Play 100 matches in World Tour. 100 mixed (20 points) - Play 50 matches in women's World Tour and 50 matches in men's World Tour. Beaten em' all (30 points) - Win a Grand Slam tournament in World Tour. Season's 5000s (30 points) - Win 5000 points in a World Tour Season. That goes with glory (40 points) - Win $1,000,000 World Tour Prize money. Grid-top regular (30 points) - Reach 4 finals in a World Tour season. Local Champ (20 points) - Enter your geographical zone's top 1000 (at least 20 matches played in World Tour). Tennis elbow (0 points) - Lose a singles match on Xbox LIVE without winning a game. Tennis teacher (20 points) - Win a singles match on Xbox LIVE without losing a game. World Tour Regular (20 points) - Play 5 seasons in World Tour. School’s Out (10 points) - Beat every lesson in the Top Spin School. Tournament hot shot (50 points) - Win all tournaments in Tournament mode. Half the way (20 points) - Win 1000 points in singles matches, in any game mode against any opponent. Safeplay award (10 points) - Win a set with no unforced errors in a singles match, in any game mode, against any opponent. Warmed up (5 points) - Win a singles match, in any game mode against any opponent. Winning duo (5 points) - Win a doubles match.