Here are some final-month rankings. I’m a little short on comments, since I’ll be hopping on a plane awfully early Monday morning. Please try not to get too bent out of shape if your star player isn’t listed where you like ... anything can happen in a month.
As always, players are ranked by position and then combined into an overall top 300 list.
Click to see other September rankings:
Top 300 | SP | RP | OF | 1B | 2B | SS | 3B | C
Third Baseman Rankings
| Sept | Third Basemen | Team | 2023 | July | Aug |
| 1 | Bobby Witt Jr. | Royals | 3 | 4 | 3 |
| 2 | Austin Riley | Braves | 1 | 2 | 1 |
| 3 | Jose Ramirez | Guardians | 2 | 1 | 2 |
| 4 | Rafael Devers | Red Sox | 4 | 3 | 4 |
| 5 | Nolan Arenado | Cardinals | 6 | 5 | 5 |
| 6 | Gunnar Henderson | Orioles | 7 | 6 | 6 |
| 7 | Manny Machado | Padres | 5 | 9 | 7 |
| 8 | Elly De La Cruz | Reds | n/a | 8 | 8 |
| 9 | Ryan McMahon | Rockies | 8 | 7 | 9 |
| 10 | Alex Bregman | Astros | 9 | 12 | 12 |
| 11 | Yandy Diaz | Rays | 26 | 11 | 11 |
| 12 | Justin Turner | Red Sox | 20 | 21 | 13 |
| 13 | Spencer Steer | Reds | 33 | 13 | 18 |
| 14 | Ha-Seong Kim | Padres | 22 | 27 | 21 |
| 15 | Isaac Paredes | Rays | 34 | 16 | 16 |
| 16 | Max Muncy | Dodgers | 21 | 14 | 14 |
| 17 | Jeimer Candelario | Cubs | 43 | 35 | 22 |
| 18 | Alec Bohm | Phillies | 13 | 20 | 20 |
| 19 | Nolan Gorman | Cardinals | n/a | 18 | 17 |
| 20 | Ke’Bryan Hayes | Pirates | 11 | 19 | 23 |
| 21 | Jordan Walker | Cardinals | 10 | 17 | 19 |
| 22 | Jorge Polanco | Twins | n/a | n/a | 25 |
| 23 | Matt Chapman | Blue Jays | 15 | 15 | 15 |
| 24 | Christian Encarnacion-Strand | Reds | 55 | 41 | 27 |
| 25 | Brandon Drury | Angels | 31 | 26 | 28 |
| 26 | Jake Burger | Marlins | 45 | 34 | 29 |
| 27 | Maikel Garcia | Royals | n/a | 30 | 30 |
| 28 | Royce Lewis | Twins | n/a | 29 | 38 |
| 29 | J.D. Davis | Giants | 38 | 25 | 26 |
| 30 | Matt Vierling | Tigers | n/a | n/a | n/a |
| 31 | Eugenio Suarez | Mariners | 28 | 36 | 31 |
| 32 | Noelvi Marte | Reds | n/a | n/a | n/a |
| 33 | DJ LeMahieu | Yankees | 16 | 28 | 33 |
| 34 | Mike Moustakas | Angels | 46 | 47 | 40 |
| 35 | Ezequiel Duran | Rangers | 58 | 23 | 34 |
| 36 | Wilmer Flores | Giants | 41 | 63 | 36 |
| 37 | Yoan Moncada | White Sox | 18 | 42 | 32 |
| 38 | Josh Rojas | Mariners | 19 | 51 | 37 |
| 39 | Mark Vientos | Mets | n/a | n/a | n/a |
| 40 | Luis Urias | Red Sox | 25 | 31 | 47 |
| 41 | Oswald Peraza | Yankees | n/a | 54 | 67 |
| 42 | Jake Alu | Nationals | 56 | NR | 41 |
| 43 | Elehuris Montero | Rockies | 36 | 67 | 44 |
| 44 | Taylor Walls | Rays | 68 | 57 | NR |
| 45 | Willi Castro | Twins | n/a | 45 | 35 |
| 46 | Michael Busch | Dodgers | n/a | 62 | 66 |
| 47 | Jordan Westburg | Orioles | n/a | n/a | 39 |
| 48 | Patrick Wisdom | Cubs | 48 | 43 | 45 |
| 49 | Jordan Diaz | Athletics | n/a | n/a | n/a |
| 50 | Chris Taylor | Dodgers | n/a | 50 | 52 |
| 51 | Gabriel Arias | Guardians | NR | 73 | 49 |
| 52 | Zach McKinstry | Tigers | 65 | 40 | 46 |
| 53 | Andruw Monasterio | Brewers | n/a | NR | 56 |
| 54 | Andy Ibanez | Tigers | NR | 55 | 54 |
| 55 | Brayan Rocchio | Guardians | n/a | n/a | n/a |
| 56 | Nick Madrigal | Cubs | n/a | NR | 53 |
| 57 | Jon Berti | Marlins | 23 | 44 | 50 |
| 58 | Nick Senzel | Reds | n/a | 37 | 42 |
| 59 | Luis Rengifo | Angels | 27 | NR | 55 |
| 60 | Ramon Urias | Orioles | 35 | 56 | 62 |
| 61 | Brian Anderson | Brewers | 37 | 32 | 51 |
| 62 | Jose Caballero | Mariners | n/a | 52 | 63 |
| 63 | Lenyn Sosa | White Sox | n/a | NR | 73 |
| 64 | Carter Kieboom | Nationals | NR | NR | NR |
| 65 | Nicky Lopez | Braves | 66 | NR | NR |
| 66 | Harold Castro | Rockies | 29 | 48 | 58 |
| 67 | Evan Longoria | Diamondbacks | 51 | 68 | 75 |
| 68 | Brett Baty | Mets | 39 | 22 | 24 |
| 69 | Donovan Solano | Twins | n/a | 60 | 64 |
| 70 | Josh Jung | Rangers | 17 | 10 | 10 |
| 71 | Tyler Freeman | Guardians | NR | NR | 61 |
| 72 | Colt Keith | Tigers | NR | 58 | 57 |
| 73 | Anthony Rendon | Angels | 12 | 24 | 48 |
| 74 | Casey Schmitt | Giants | NR | 49 | 60 |
| 75 | Josh H. Smith | Rangers | NR | NR | NR |
Dropping off: Rodolfo Castro (65th), Jace Peterson (68th), Jared Triolo (69th), Curtis Mead (70th)
- Matt Chapman’s finger is enough of a concern to get him dropped several spots this month. He’ll probably try to keep playing through it if he can, but it definitely seems to be limiting him; he’s hit just .200/.250/.280 with one homer this month.