The 15th round of the 2018 FIA Formula One World Championship began with practice Friday at Marina Bay Street Circuit as teams prepared for the Singapore Grand Prix Sunday.
Two 90-minute sessions – FP1 and FP2 – on the 5.063-kilometer (3.146-mile), 23-turn track were run under clear conditions, with FP1 taking place in the late-afternoon sun and FP2 getting underway at night with approximately 1,700 spotlights illuminating the circuit. Haas F1 Team drivers Romain Grosjean and Kevin Magnussen navigated the green surface amid the heat and humidity that is a hallmark of Singapore.
The asphalt was especially slick through turn one and between turns five and seven, turns 15 and 17 and around the final corner after being resurfaced in preparation for this weekend’s event. The track’s distance also changed slightly, reduced by two meters (3.3 feet) after a realignment of turns 16-17, which features a quick right-left feature that drivers navigate at around 140 kph (87 mph).
Both Grosjean and Magnussen began FP1 on the Pirelli P Zero Purple ultrasoft tire before transitioning to the Pink hypersoft tire. Grosjean’s quick time of 1:42.108 came on his 14th lap shod on the grippier hypersofts. He ran 21 laps and was the 10th-fastest driver. Magnussen’s best time was a 1:42.452 on his 16th lap, also set on hypersofts. He ran 20 laps and posted the 13th-quickest time.
Both drivers reported understeer while on ultrasofts, but at varying levels. Grosjean noticed a touch of understeer while Magnussen experienced a lot, specifically while in mid-corner. Switching to hypersofts gave both pilots a better sense of stability.
Leading the way in FP1 was Red Bull driver Daniel Ricciardo, whose fast lap of 1:39.711 was .201 of a second better than the next quickest driver, his teammate Max Verstappen.
Speeds picked up and lap times dropped in the more representative FP2 session. Grosjean wrapped FP2 as the seventh-quickest driver with a time of 1:40.384, which was 1.724 seconds better than his best lap in FP1. His quick time came on the 10th of his 33 laps on a set of hypersoft tires. Magnussen shaved 1.298 seconds off his FP1 time with a lap of 1:41.154 to finish the session 15th overall. His fast lap came on his 10th tour as well, also while utilizing the hypersoft tire. He completed 32 laps.
Grosjean began FP2 on Yellow soft tires and Magnussen started on Purple ultrasofts. Both drivers turned seven laps apiece on these respective compounds before going back to the hypersofts.
Kimi Räikkönen of Scuderia Ferrari topped FP2 with a track-record mark of 1:38.699, which was .011 of a second better than his nearest pursuer, Mercedes’ Lewis Hamilton.
Between the two sessions, Haas F1 Team ran a total of 106 laps – 54 by Grosjean and 52 by Magnussen.