Seattle Mariners
Development Update |  | | Monday, July 21st, 2031 | | Right Field J. Martínez (Park Hills Springers, Single A) hitting potential INCREASES. | | Catcher H. Taylor (Park Hills Springers, Single A) hitting potential DROPS. |
| Saturday, July 12th, 2031 | | Starting Pitcher D. Albert (Charleston Raccoons, Rookie League) pitching potential INCREASES. |
| Saturday, June 28th, 2031 | | Third Base L. Reeves (Bakersfield Saws, Double A) hitting potential DROPS. |
| Thursday, June 26th, 2031 | | Reliever A. Stewart (Charleston Raccoons, Rookie League) pitching potential DROPS. |
| Saturday, June 14th, 2031 | | Reliever J. Fajardo (Park Hills Springers, Single A) pitching potential INCREASES. |
| Wednesday, June 11th, 2031 | | Starting Pitcher G. Holloway (Charleston Raccoons, Rookie League) pitching potential DROPS. |
| Friday, June 6th, 2031 | | Closer J. Bryant (Bakersfield Saws, Double A) pitching potential DROPS. |
| Wednesday, June 4th, 2031 | | Catcher C. Xiu (Charleston Raccoons, Rookie League) hitting potential DROPS. |
| Monday, June 2nd, 2031 | | Catcher T. Hawn (Charleston Raccoons, Rookie League) hitting potential DROPS. |
| Wednesday, May 21st, 2031 | | Right Field V. Chávez (Saint Paul Buckshots, Triple A) hitting potential INCREASES. |
| Monday, May 19th, 2031 | | Reliever M. LaRiviere (Charleston Raccoons, Rookie League) pitching potential DROPS. |
| Saturday, May 17th, 2031 | | Shortstop J. Gil (Park Hills Springers, Single A) hitting potential DROPS. |
| Friday, May 9th, 2031 | | Reliever M. Huffman (Saint Paul Buckshots, Triple A) pitching potential INCREASES. |
| Monday, May 5th, 2031 | | Starting Pitcher J. Snell (Charleston Raccoons, Rookie League) pitching potential INCREASES. |
| Thursday, May 1st, 2031 | | Starting Pitcher P. Turner (Park Hills Springers, Single A) pitching potential INCREASES. |
| Thursday, April 24th, 2031 | | Starting Pitcher T. Soukup (Charleston Raccoons, Rookie League) pitching potential DROPS. |
| Wednesday, April 23rd, 2031 | | Third Base G. Stanley (Charleston Raccoons, Rookie League) hitting potential INCREASES. |
| Friday, April 11th, 2031 | | Shortstop C. Bright (Charleston Raccoons, Rookie League) hitting potential INCREASES. |
| Thursday, April 10th, 2031 | | Starting Pitcher D. Gabriel (Park Hills Springers, Single A) pitching potential DROPS. |
| Tuesday, April 8th, 2031 | | Reliever B. Teague (Charleston Raccoons, Rookie League) pitching potential INCREASES. |
| Friday, April 4th, 2031 | | Reliever T. Stroud (Bakersfield Saws, Double A) pitching potential INCREASES. |
| Tuesday, March 25th, 2031 | | Reliever M. Martínez pitching potential DROPS. |
| Saturday, March 22nd, 2031 | | Second Base L. Trombelli (Park Hills Springers, Single A) hitting potential DROPS. |
| Friday, March 21st, 2031 | | Starting Pitcher C. McNeill (Park Hills Springers, Single A) pitching potential INCREASES. |
| Wednesday, March 19th, 2031 | | Third Base G. Stanley (Charleston Raccoons, Rookie League) hitting potential DROPS. |
| Saturday, March 15th, 2031 | | Reliever D. West (Saint Paul Buckshots, Triple A) pitching potential DROPS. |
| Wednesday, March 12th, 2031 | | Reliever R. Spencer (Saint Paul Buckshots, Triple A) pitching potential DROPS. |
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