Here are the results of the 1998 MLS Supplemental Draft:
First Round
| |
| Pick/Team | Selection | Position | Last Club |
| 1. Chicago | C.J. Brown | Defender | S.F. Bay Seals (A-League) |
| 2. Tampa Bay-a | Brian Loftin | Forward | Kansas City Attack (NPSL) |
| 3. San Jose | Tim Weaver | Defender | S.F. Bay Seals (A-League) |
| 4. Colorado-b | Marquis White | Forward | S.F. Bay Seals (A-League) |
| 5. New England | Dahir Mohammed | Defender | Long Island Rough Riders (A-League) |
| 6. D.C. United-c | Geoff Aunger | Def./Mid. | Seattle Sounders (A-League) |
| 7. Tampa Bay | Brad Wilson | Midfielder | Orange Cty. Zodiac (A-League) |
| 8. Kansas City | Goran Hunjak | Midfielder | Washington Warthogs (CISL) |
| 9. D.C. United-d | Danny Care | Defender | Carolina Dynamo (A-League) |
| 10. Dallas | Chris Fox | Defender | Buffalo Blizzard (NPSL) |
| 11. Colorado | Julio Cengarle | Midfielder | Maunabo (Puerto Rico) |
| 12. Columbus-d | Brandon Ward | Midfielder | Richmond Kickers (A-League) |
Second Round
| |
| Pick/Team | Selection | Position | College |
| 1. Chicago | Don Gramenz | Defender | Minnesota Thunder (A-League) |
| 2. MetroStars-e | Travis Roy | Midfielder | Milwaukee Rampage (A-League) |
| 3. San Jose | Kevin Rueda | Goalkeeper | California Jaguars (A-League) |
| 4. Chicago-f | Paul Holocher | Midfielder | California Jaguars (A-League) |
| 5. New England | Doug Neely | Midfielder | Anaheim Splash (CISL) |
| 6. Los Angeles | Cesar Alvarado | Midfielder | Valley Golden Eagles (Premier League) |
| 7. Tampa Bay | Steve Bell | Midfielder | Washington Warthogs (CISL) |
| 8. Kansas City | Rodney Rambo | Defender | Univ. of Portland |
| 9. Columbus | Scott Cannon | Defender | Richmond Kickers (A-League) |
| 10. Dallas | Ernest Inneh | Forward | Long Island Rough Riders (A-League) |
| 11. San Jose-g | Eddie Soto | Forward | Pro Beach Soccer Tour |
| 12. Tampa Bay-h | John Jones | Mid./Fwd. | Orange Cty. Zodiac (A-League) |
Third Round
| |
| Pick/Team | Selection | Position | College |
| 1. Chicago | Paul Lekics | Midfielder | Richmond Kickers (A-League) |
| 2. Los Angeles-i | Amos Magee | Forward | Minnesota Thunder (A-League) |
| 3. San Jose | Alberto Montoya | Midfielder | Raleigh Flyers (A-League) |
| 4. MetroStars | Sal Leanti | Defender | Long Island Rough Riders (A-League) |
| 5. New England | Dave Salzwedel | Goalkeeper | San Jose Clash |
| 6. Los Angeles | Marco Ferruzzi | Midfielder | Tampa Bay Mutiny |
| 10. Dallas | Darren Sawatzky | Mid./Fwd. | New England Revolution |
| 11. Colorado | Tayt Ianni | Def./Mid. | San Jose Clash |
picks 7 (Tampa Bay), 8 (Kansas City), 9 (Tampa from Columbus) and 12 (D.C. United) were passed. a) from Miami as part of trade for Carlos Valderrama.
b) from MetroStars as part of Shaun Bartlett trade.
c) from New England (who received it from Los Angeles for Welton) in exchange for third-round pick in college draft.
d) Columbus traded #9 pick to D.C. for #12 pick.
e) from Miami for second-round pick in 1999 supplemental draft
f) from Los Angeles (via MetroStars) for third-round pick in college draft.
g) from Colorado in Paul Bravo, Rafael Amaya and Dominic Kinnear trade.
h) from D.C. United
i) from Miami for third-round pick in 1999 supplemental draft.
