they are judged with an assistance of a DriftBox, which determines angle, keeping to the correct racing line and speed. That will be given a score up to a maximum of 100.0, should a driver score that point, he will be given a bonus score of 1 point which will be added to his score they accumulates during the tsuiou round. At the end when all drivers are judged, the judges picks the sixteen drivers for the tsuiou round, the highest scoring driver will be paired up against the sixteenth highest scorer, the second highest will be paired against the fifteenth highest and so on. Between this and the following tsuiou round, there is a pit walk session at the paddock area for spectators, usually off-limits to them, where they can get close to the D1 personnel, drivers and cars. This usually lasts up to an hour which the crowds disembark back to the crowd area ready for the tsuiou round. During a tsuiso round battle, one car follows another through the course, attempting to keep up with or even pass the car in front. It does not matter if the drifting line is wrong: it matters who has the most exciting drift. Normally, the leading car usually produces a maximum angle drift, but still closes off the inside line to prevent passing. The chasing car usually drifts with less angle, but very close to the lead car. However, the chasing car does not even have to keep up. In fact, in some cases, if a car that was left behind on the straight manages produces a beautiful drift, it could win that round. A spin, under-steer, or collision, results in a disqualification and a zero score for the offending party in that battle. At the final round, the two finalists will be gathered in front of the judging stand, which they park up together and stand by their car to be formally addressed by the judges, the driver would return to the starting line to continue with their last sets of tsuiou rounds. Until 2004, there was a third place playoff for the losing semi finalists, which has been dropped. Should there be no sudden death rounds being called up, the finalists would return in front of the judging area with the losing drivers, who would return from the starting line; where the winner's name will be called up