Stage 4 Volta ao Algarve em Bicicleta 2021, Portugal
- Date
- 8 May
- Distance
- 20 km
- Starters
- 175
Kasper ASGREEN won in 23:52, 0:03 ahead of REIS.
| 1 |  K. ASGREEN | 23:52 |
| 2 |  R. REIS | +0:03 |
| 3 |  B. THOMAS | +0:09 |
Stage result
171| # | Rider | Time | GC | UCI pts |
|---|---|---|---|---|
| 1 | K. ASGREENDeceuninck - Quick-Step | 23:52 | +0:21 | 20 |
| 2 | R. REISEfapel | +0:03 | +9:09 | 10 |
| 3 | B. THOMASGroupama - FDJ | +0:09 | +24:19 | 5 |
| 4 | T. GUERNALECTeam Arkea - Samsic | +0:19 | +0:22 | |
| 5 |  N. POLITTBORA - Hansgrohe | +0:28 | +5:49 | |
| 6 | I. OLIVEIRAUAE Team Emirates | +0:37 | +17:49 | |
| 7 |  R. GIBBONSUAE Team Emirates | +0:52 | +4:26 | |
| 8 |  D. LOPEZ FUENTESEquipo Kern Pharma | +0:53 | +9:07 | |
| 9 |  E. HAYTERIneos Grenadiers | +1:02 | 14:53:34 | |
| 10 | C. RODRIGUEZ CANOIneos Grenadiers | +1:13 | +4:57 | |
| 11 | J. RODRIGUESW52 / FC Porto | +1:14 | +0:12 | |
| 12 | C. DAVYGroupama - FDJ | +1:16 | +26:46 | |
| 13 | A. BRUNELGroupama - FDJ | s.t. | +18:48 | |
| 14 | M. BOUETTeam Arkea - Samsic | +1:18 | +0:53 | |
| 15 | X. AZPARRENEuskaltel - Euskadi | +1:23 | +29:49 |
Teams
8 of 25 scored · 6–7 riders each| # | Team | ||||
|---|---|---|---|---|---|
| 1 | Deceuninck - Quick-Step | 20 | 1 | 1 | 1 |
| 2 | Efapel | 10 | 0 | 1 | 1 |
| 3 | Groupama - FDJ | 5 | 0 | 1 | 1 |
| 4 | Ineos Grenadiers | 5 | 0 | 0 | 2 |
| 5 | Team Arkea - Samsic | 0 | 0 | 0 | 1 |
| 6 | BORA - Hansgrohe | 0 | 0 | 0 | 1 |
| 7 | UAE Team Emirates | 0 | 0 | 0 | 2 |
| 8 | Equipo Kern Pharma | 0 | 0 | 0 | 1 |