Adam Everett

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2024.

Adam signed a 2009 Upper Deck card #639.

https://www.baseball-reference.com/players/e/everead01.shtml

Adam Lind

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2024.

Adam signed a 2009 Upper Deck Series 2 card #917.

https://www.baseball-reference.com/players/l/lindad01.shtml

J.C. Romero

I met him at the Philadelphia Phillies fantasy camp at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2024.

J.C. signed a 2010 Upper Deck card #387.

https://www.baseball-reference.com/players/r/romerj.01.shtml

Greg Brock

My dad's birthday is June 14th. He passed away on August 31, 2020. For his first birthday without him,  I came up with another TTM challenge for myself. This one I called "Dad TTM Project." On June 8, 2021, six days before his birthday, I sent birthday cards to eleven baseball players who also shared his birthday.

Here is the card that I sent to Greg Brock.

100 days later my card came back signed.

Greg signed a 1991 Upper Deck card #289.

https://www.baseball-reference.com/players/b/brockgr01.shtml

Jerome Williams

I met him at a Minor League game at BayCare Ballpark in Clearwater, Florida in 2021, when the St. Lucie Mets, whom he was the pitching coach for, came to play the Clearwater Threshers.

Jerome signed a 2006 Upper Deck card #550.

https://www.baseball-reference.com/players/w/willije01.shtml

Gerald Alexander

In March of 2021, I was looking for cards to mail out and I saw on the back of Gerald Alexander's card that his birthday was less than a week away (March 26th), so I decided to look him up and I found his address and sent him my card and the following letter.

92 days later my card came back signed.

Gerald signed a 1991 Upper Deck Final Edition card #72F.

https://www.baseball-reference.com/players/a/alexage01.shtml

Ryan Turner

In October of 2020, I decided to seek out an address for Ryan Turner. I discovered that he was the managing director of an investment management firm in California, so I sent him my card and the following letter.

224 days later my card came back signed.

Ryan signed a 1992 Upper Deck card #710.

https://www.baseball-reference.com/register/player.fcgi?id=turner001rya

Dennis Martinez

I met him at an Olympic baseball qualifying game at Clover Park in Port Saint Lucie, Florida in 2021, when Nicaragua played the USA. He was there to throw out the ceremonial first pitch.

Dennis signed a 1991 Upper Deck card #385.

https://www.baseball-reference.com/players/m/martide01.shtml

Brad Arnsberg

In May of 2021, I decided to seek out an address for Brad Arnsberg. I sent him my card and the following letter.

Fourteen days later my card came back signed.

Brad signed a 1991 Upper Deck card #608.

https://www.baseball-reference.com/players/a/arnsbbr01.shtml

Eric Anthony

In May of 2021, I decided to seek out an address for Eric Anthony. I sent him my card and the following letter.

Eleven days later my card came back signed.

Eric signed a 1991 Upper Deck card #533.

https://www.baseball-reference.com/players/a/anthoer01.shtml

Beau Allred

In April of 2021, I decided to seek out an address for Beau Allred. I discovered that he had his own insurance agency in Arizona, so I sent him my card and the following letter.

29 days later my card came back signed.

Beau signed a 1991 Upper Deck card #784.

https://www.baseball-reference.com/players/a/allrebe01.shtml

Jim Acker

In March of 2021, I decided to seek out an address for Jim Acker. I found an address and sent him my card and a letter.

Unfortunately, it turned out that the address was incorrect. Eleven days later I got a "return to sender" notice.

I found a different address, changed the date on my letter, and re-sent it.

Fifteen days later my card came back signed.

Jim signed a 1991 Upper Deck card #670.

https://www.baseball-reference.com/players/a/ackerji01.shtml

Rick Parker

In March of 2021, I was looking for cards to mail out and I saw on the back of Rick Parker's card that his birthday was less than a week away (March 20th), so I decided to look him up and I found his address and sent him my card and the following letter.

Ten days later my card came back signed.

Rick signed a 1990 Upper Deck card #732.

https://www.baseball-reference.com/players/p/parkeri01.shtml

Ted Power

In January of 2021, I was looking for cards to mail out and I saw on the back of Ted Power's card that his birthday was the next day (January 31st), so I decided to look him up and I found his address and sent him my card and the following letter.

Seven days later my card came back signed.

Ted signed a 1992 Upper Deck card #680.

https://www.baseball-reference.com/players/p/powerte01.shtml

Billy Jo Robidoux

My birthday is on January 13th, so I came up with another TTM challenge for myself. This one I called "The TTM Birthday Challenge." On January 6, 2021, one week before my birthday, I sent birthday cards to ten baseball players who also share my birthday.

Here is the birthday card that I sent to Billy Jo Robidoux.

23 days later, my card came back signed.

Billy Jo signed a 1990 Upper Deck card #782.

https://www.baseball-reference.com/players/r/robidbi01.shtml

Dana Kiecker

In August of 2020, an autograph collector on Instagram posted a letter from Dana Kiecker about a scholarship fund that Mr. Kiecker and his wife had created. For a $1 donation, Dana would sign a card. I thought that sounded fair, so I wrote him a letter and sent my card along with a dollar bill.

Ten days later my card came back signed.

Dana signed a 1991 Upper Deck card #507.

https://www.baseball-reference.com/players/k/kieckda01.shtml

Mike Pelfrey

I met him at the American Conference Baseball Championship at Spectrum Field in Clearwater, Florida in 2019, when the Wichita State Shockers, whom he was the pitching coach for, played the East Carolina Pirates.

Mike signed a 2006 Upper Deck card #1127.

https://www.baseball-reference.com/players/p/pelfrmi01.shtml

Mark Guthrie

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2019.

He was there watching his son, Dalton, play in a minor league spring training game.

Mark signed a 1992 Upper Deck card #604.

https://www.baseball-reference.com/players/g/guthrma01.shtml

Luis Rivera

I met him at Spectrum Field in Clearwater, Florida in 2019, when the Toronto Blue Jays, whom he was the third base coach for, came to play the Philadelphia Phillies in a spring training game.

Luis signed a 1991 Upper Deck card #182.

https://www.baseball-reference.com/players/r/riverlu01.shtml

Dennis Rasmussen

I met him at the Tampa Bay Rays Fan Fest at Tropicana Field in St. Petersburg, Florida on February 9, 2019.

Dennis signed a 1992 Upper Deck card #439.

https://www.baseball-reference.com/players/r/rasmude01.shtml