[11] DC United 0-1 Philadelphia Union [7] 2021-05-23 23:15
Stadium: Audi Field
Referee: Tim Ford Home Manager: Away Manager: Jim Curtin
Head to Head
| USA MLS | 2020/10/15 00:00 | DC United v Philadelphia Union | D | 2-2 |
| USA MLS | 2020/08/29 23:30 | Philadelphia Union v DC United | L | 4-1 |
| USA MLS | 2019/08/24 23:30 | Philadelphia Union v DC United | L | 3-1 |
| USA MLS | 2019/08/04 23:30 | DC United v Philadelphia Union | L | 1-5 |
| USA US Open Cup | 2019/06/12 23:00 | DC United v Philadelphia Union | W | 2-1 |
| USA MLS | 2018/08/30 00:00 | DC United v Philadelphia Union | L | 0-2 |
| USA MLS | 2018/04/28 19:30 | Philadelphia Union v DC United | L | 3-2 |
| World Club Friendlies | 2018/02/17 22:00 | Philadelphia Union v DC United | W | 1-2 |
Home History
| USA MLS | 2021/05/17 00:00 | DC United v Orlando City SC | L | 0-1 |
| USA MLS | 2021/05/14 00:00 | DC United v Chicago Fire | W | 1-0 |
| USA MLS | 2021/05/08 17:30 | Columbus Crew v DC United | L | 3-1 |
| USA MLS | 2021/05/02 03:00 | San Jose Earthquakes v DC United | L | 4-1 |
| USA MLS | 2021/04/25 00:00 | New England Revolution v DC United | L | 1-0 |
| USA MLS | 2021/04/18 00:00 | DC United v New York City FC | W | 2-1 |
| USA MLS | 2020/11/08 20:30 | DC United v CF Montreal | L | 2-3 |
| USA MLS | 2020/11/02 00:30 | New England Revolution v DC United | L | 4-3 |
Away History
| USA MLS | 2021/05/15 23:30 | Philadelphia Union v New York Red Bulls | W | 1-0 |
| USA MLS | 2021/05/12 23:30 | Philadelphia Union v New England Revolution | D | 1-1 |
| USA MLS | 2021/05/08 17:00 | Chicago Fire v Philadelphia Union | W | 0-2 |
| CONCACAF Champions Cup | 2021/05/05 00:00 | Philadelphia Union v Atlanta United | D | 1-1 |
| USA MLS | 2021/05/01 23:30 | Philadelphia Union v New York City FC | L | 0-2 |
| CONCACAF Champions Cup | 2021/04/28 00:00 | Atlanta United v Philadelphia Union | W | 0-3 |
| USA MLS | 2021/04/25 00:00 | Philadelphia Union v Inter Miami CF | L | 1-2 |
| USA MLS | 2021/04/18 21:30 | Columbus Crew v Philadelphia Union | D | 0-0 |