Raikkonen started from pole position for the first time in nine years, and led after the first corner, but his Ferrari team-mate Sebastian Vettel got in front after Ferrari called the Finn in to the pits on Lap 36.
Vettel proceeded to quicken the pace as Raikkonen struggled in traffic and, when the German emerged from his first stop, the overcut was complete. Four-time world champion went on to claim his second Monaco win by more than 10 seconds.
The Finn cut an unhappy figure following the race, suggesting that he was unhappy with his team’s pit-lane strategy, and when asked about the race he replied: “Ermmmmm…. hard to say really. It is still second place but it doesn’t feel awful good. It is how it goes sometimes but we go to the next race.”
Within recommendations his race strategy was chosen in a way that would benefit Vettel’s title hopes, when asked why he pitted when he did, the Finn added: “I was called in. That is about it.
“Obviously they had reasons for it, but it is not up to me to answer.
“I can stop the car if I like [in the pits] as I am driving it, but we work as a team and if you don’t believe what you have been told or how it works it will get very complicated.
“Today as a team we wanted a one-two, it happened, but for myself, I could have done a bit better. I haven’t seen the big picture, I only know that we came second.
“The team got a one-two, which is great for the team, but the rest – until we have meetings and we can see all the graphs I don’t know.”
Vettel was delighted to win such an “intense race”, and extend his lead over Lewis Hamilton at the top of the drivers’ championship to 25 points.
“I went through a really tricky phase with some tricky tyres – they started to slide but had a second chance after the pit,” the German four-time world champion said.
“I got a couple of really good laps where I could control the pace and I was able to use the safety car. This circuit is tricky with cold tyres.
“We couldn’t plan much but the plan was to pull away and as soon as the gap opened I took it. I was surprised myself.”