University of Miami Athletics
2025 Outdoor
Qualified for the NCAA Championships and helped the 4x400m relay team place eighth to earn USTFCCCA First Team All-America honors
Broke the school record in the 800m at the ACC Championships to finish fourth at 2:01.00
Took home silver in the 4x400m relay helping set a season-best time of 3:29.00
Helped the 4x400m relay qualify for the NCAA Championships by running a 3:28.89
Set a season-best time in the 4x400m relay to qualify for the NCAA Championship final with a season-best time of 3:28.61
2025 Indoor
Qualified for the NCAA Indoor Championships and placed sixth in the final to earn USTFCCCA First Team All-America honors
Broke her own school record in the 800m at the ACC Championships to finish fourth at 2:06.60
Opened the season by breaking the school and ACC record in the 600m with a time of 1:26.89
Her time matched BYU’s Sami Oblad for the sixth-fastest 600m time in NCAA history
Helped the 4x400m relay to a third-place finish at the ACC Championships with a season-best time of 3:33.39
2024 Outdoor
ACC Bronze Medalist in the 4x400m relay with a time of 3:32.27
Ran the third fastest outdoor 800m in school history with 2:04.06 at the Pepsi Florida Relays, then claimed the bronze with the 4x400m relay team with a time of 3:30.23
First-Team All-ACC in the 800m with a time of 2:05.40, good for seventh place
2024 Indoor
ACC Indoor Champion in the 4x400m with 3:32.83
First-Team All-ACC in the 800m with a time of 2:04.74
Registered wins in the 800m with 2:05.89 and the 4x400m with 3:38.84 at the KSU DeLoss Dodds Invitational
Bested the competition in the 800m with 2:07.64 at the Corky Classic
2023 Outdoor
Finished second as part of the 4×400 relay team with 3:36.28 at the Hurricane Invitational
Placed third and registered a new personal best in the 400m with 54.56 at the Hurricane Invitational
Earned the first first-place finish of her collegiate career with the 4×400 relay team with 3:37.46 at the Hurricane Collegiate Invitational
Placed first with the 4×400 relay team at the UNF East Coast Relays (4/29) with a time of 3:35.42
Registered a new personal best in the 800m her first ACC Outdoor Track and Field Championships (5/13) with a time of 2:06.34, good for eleventh.
2023 Indoor
Began her collegiate career with a second-place finish with the 4×400 relay team with a time of 3:33.51 at the Louisville Cardinal Classic
Placed fourth at the same meet with 55.46 in the 400m
Finished third as part of the 4×400 team with 3:35.84 at the Texas Tech Red Raider Open
High School
Two-time Georgia state champion 400m Two-time Georgia state champion 800m 4×4 relay Georgia state champion 400m indoor New Balance champion USATF Junior Olympic champion Holds the all-time Georgia state record in the 800m at 2:07.
Personal
Daughter to Daphne Grissom and Marquis Grissom Younger sister to Tiana, Marquis Jr., D’Monte, and Micah Grisso Gabriella’s father, Marquis, is a retired MLB player while her brother, Marquis Jr., is a current MLB player for the Washington Nationals In her free time, Gabriella enjoys tumbling and swimming Currently pursuing a bachelor’s degree in marketing
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