MLS Most Yellow Cards
| # | Player | Team | Yellow | Apps |
|---|---|---|---|---|
| 1 | Christopher Durkin M | St.Louis City | 12 | 28 |
| 2 | Ashley Westwood M | Charlotte FC | 11 | 29 |
| 3 | Josh Atencio M | Colorado Rapids | 11 | 28 |
| 4 | Brooklyn Raines M | New England Revolution | 10 | 29 |
| 5 | Dje Tah D'Avilla M | Chicago Fire | 10 | 29 |
| 6 | Jefferson Díaz D | Minnesota United | 10 | 29 |
| 7 | Preston Judd F | San Jose Earthquakes | 10 | 29 |
| 8 | Ronald Donkor M | New York Red Bulls | 10 | 29 |
| 9 | Telasco Segovia M | Inter Miami CF | 10 | 28 |
| 10 | Tomás Jacob D | Atlanta United | 10 | 28 |
| 11 | Édier Ocampo D | Vancouver Whitecaps | 9 | 28 |
| 12 | Reid Roberts D | San Jose Earthquakes | 9 | 29 |
| 13 | Agustin Resch D | Houston Dynamo | 8 | 28 |
| 14 | Andrés Cubas M | Vancouver Whitecaps | 8 | 25 |
| 15 | Bryan Ramirez M | FC Cincinnati | 8 | 31 |
| 16 | Christopher McVey D | San Diego FC | 8 | 30 |
| 17 | Conrad Wallem M | St.Louis City | 8 | 27 |
| 18 | Danley Jean Jacques M | Philadelphia Union | 8 | 29 |
| 19 | David Schnegg D | Charlotte FC | 8 | 29 |
| 20 | DeAndre Yedlin D | Real Salt Lake | 8 | 25 |
| 21 | Eduard Atuesta M | Orlando City SC | 8 | 25 |
| 22 | Felipe Andrade D | Houston Dynamo | 8 | 22 |
| 23 | Hamzat Ojediran M | Colorado Rapids | 8 | 30 |
| 24 | Hassani Dotson M | Seattle Sounders FC | 8 | 25 |
| 25 | Jack Elliott D | Chicago Fire | 8 | 28 |
MLS Most Red Cards
| # | Player | Team | Red | Apps |
|---|---|---|---|---|
| 1 | Carlos Garcés D | LA Galaxy | 3 | 25 |
| 2 | Christopher McVey D | San Diego FC | 2 | 30 |
| 3 | Gerardo Valenzuela M | FC Cincinnati | 2 | 28 |
| 4 | Guilherme Biro D | Austin FC | 2 | 28 |
| 5 | Kamal Miller D | Portland Timbers | 2 | 31 |
| 6 | Rob Holding D | Colorado Rapids | 2 | 30 |
| 7 | Yannick Bright M | Inter Miami CF | 2 | 26 |
| 8 | Aaron Long D | Los Angeles FC | 1 | 23 |
| 9 | Adri Mehmeti M | New York Red Bulls | 1 | 30 |
| 10 | Agustín Bouzat M | Houston Dynamo | 1 | 31 |
| 11 | Alvas Powell D | FC Cincinnati | 1 | 23 |
| 12 | Amahl Pellegrino F | San Diego FC | 1 | 25 |
| 13 | Anders Dreyer F | San Diego FC | 1 | 31 |
| 14 | Antônio Carlos D | Houston Dynamo | 1 | 27 |
| 15 | Ashley Westwood M | Charlotte FC | 1 | 29 |
| 16 | Brayan Vera D | CF Montréal | 1 | 25 |
| 17 | Cavan Sullivan M | Philadelphia Union | 1 | 29 |
| 18 | Christopher Durkin M | St.Louis City | 1 | 28 |
| 19 | CJ Dos Santos G | San Diego FC | 1 | 25 |
| 20 | Colin Guske M | Orlando City SC | 1 | 10 |
| 21 | Conrad Wallem M | St.Louis City | 1 | 27 |
| 22 | David Schnegg D | Charlotte FC | 1 | 29 |
| 23 | Dje Tah D'Avilla M | Chicago Fire | 1 | 29 |
| 24 | Đorđe Mihailović M | Toronto FC | 1 | 17 |
| 25 | Enea Mihaj D | Atlanta United | 1 | 30 |