In Belgium, the effect of Kovalainen's two extra stops was wiped out by the safety car, and Trulli spun (or was hit, I can't remember) right after the restart. He had been in front.
In Brazil Trulli had a hydraulics problem, but still finished right behind Kovalainen.
In Abu Dhabi Trulli had a front wing problem from the beginning.
Japan: Trulli was behind, but not by far and he had a big hydraulic problem in the final laps which made him slow down.
Singapore: Kovalainen was ahead but not by much, and Trulli may have finished ahead if not for yet more bad luck.
Hungary: Trulli's strategy was screwed by the safty car.
You can say the same for most races of 2010: Trulli was stronger, but was far more unlucky.
In Japan, Trulli was also screwed by strategy, could easily finished in front without hydraulic problems
In Bahrain Jarno was clearly ahead, when hydraulic problems started
In Canada Jarno also was clearly faster
In 2011 although Trulli lost in quals,he was always close or ahead in races before Korea.
Australia - Jarno was on prime in first stint, then Heikki retired
Malaysia -Jarno spun in the beginning, but he stayed in Kova's pace before retirement
Turkey- Trulli finished ahead
Spain -was ahead by 15 seconds, when Kova crashed
Monaco -was clearly ahead, Heikki cut gap with the help of safety car
Canada -Jarno was ahead, Heikki retired, Jarno had problems.
Valencia -they were close during the race on different strategy, Heikki just had the edge due two 3 stops in the end
Belgium -Trulli was clearly ahead
Monza-Trulli win qual, lost to Kova in start, but was hit by Massa, then he was quicker during the race despite another strategy
Singapore - stayed ahead, but then was hit by Jaime
Suzuka-ran close during all race
Then in Korea and Abu Dhabi Trulli lost a lot to Kova, but in India he was hit by Narain in 1 lpa, and in Brazil it was again different strategy.