Formula 1's five-day private test at Barcelona is a very particular scenario in many ways - including in how teams are going about their mileage.
With each team allowed a maximum of three days of running across the Monday-to-Friday event, there's naturally a mix of strategies in play - informed by car build logistics, weather and other considerations.
Here's your guide to who's running when.
Day-by-day breakdown
Monday
Mercedes (151 laps)
Red Bull (107 laps)
Racing Bulls (88 laps)
Haas (154 laps)
Audi (27 laps)
Alpine (60 laps)
Cadillac (44 laps)
Tuesday
Red Bull (78 laps)
Ferrari (121 laps)
Wednesday
McLaren (76 laps)
Mercedes (183 laps)
Audi (68 laps)
Racing Bulls (120 laps)
Alpine (125 laps)
Haas (42 laps)
Thursday
Mercedes (168 laps)
Ferrari (174 laps)
McLaren (48 laps)
Racing Bulls (111 laps)
Cadillac (66 laps)
Aston Martin (4 laps)
Friday
Haas (190 laps)
McLaren (166 laps)
Alpine (164 laps)
Ferrari (145 laps)
Audi (145 laps)
Red Bull (118 laps)
Aston Martin (61 laps)
Cadillac (54 laps)
Team-by-team breakdown
McLaren
Monday - no
Tuesday - no
Wednesday - 76 laps (Norris)
Thursday - 48 laps (Piastri)
Friday - 166 laps (Norris 86, Piastri 80)
Mercedes
Monday - 151 laps (Antonelli 56, Russell 95)
Tuesday - no
Wednesday - 183 laps (Russell 92, Antonelli 91)
Thursday - 168 laps (Russell 78, Antonelli 90)
Friday - no
Red Bull
Monday - 107 laps (Hadjar 107)
Tuesday - 78 laps (Hadjar 51, Verstappen 27)
Wednesday - no
Thursday - no
Friday - 118 laps (Verstappen)
Ferrari
Monday - no
Tuesday - 121 laps (Leclerc 64, Hamilton 57)
Wednesday - no
Thursday - 174 laps (Leclerc 85, Hamilton 89)
Friday - 145 laps (Leclerc 78, Hamilton 67)
Williams
Williams is not attending the test.
Racing Bulls
Monday - 88 laps (Lawson 88)
Tuesday - no
Wednesday - 120 laps (Lindblad 120)
Thursday - 111 laps (Lindblad 47, Lawson 64)
Friday - no
Aston Martin
Monday - no
Tuesday - no
Wednesday - no
Thursday - 4 laps (Stroll 4)
Friday - 61 laps (Alonso)
Haas
Monday - 154 laps (Ocon 154)
Tuesday - no
Wednesday - 42 laps (Bearman 42)
Thursday - no
Friday - 190 laps (Bearman 105, Ocon 85)
Audi
Monday - 27 laps (Bortoleto 27)
Tuesday - no
Wednesday - 68 laps (Hulkenberg 68)
Thursday - no
Friday - 145 laps (Hulkenberg 78, Bortoleto 67)
Alpine
Monday - 60 laps (Colapinto 60)
Tuesday - no
Wednesday - 125 laps (Colapinto 58, Gasly 67)
Thursday - no
Friday - 164 laps (Gasly)
Cadillac
Monday - 44 laps (Bottas 33, Perez 11)
Tuesday - no
Wednesday - no
Thursday - 66 laps (Perez 66)
Friday - 54 laps (Bottas)
