A common rule in many levels of motorsport states the last (specific number, usually between 2-10) laps must be run under green flag conditions, or as sometimes called when the number is two, the green-white-checker finish. When the race would otherwise end as a yellow–checker finish (during which no competition may take place, including no passing), this rule gives the field an attempt to finish the race under a green-flag, racing condition. Instead of ending the race when the stated distance has been covered, it continues until the green flag is given (signalling the end of the caution condition), at which time the drivers resume the race with the number of green flag laps remaining at the time (2-10), regardless of the actual number of laps covered to that point.
Depending on the series' sanctioning body, there may be a number of possible variants cited in the application of this rule.
- 1 ARCA
- 2 NASCAR
- 2.1 Regional Series (until 2010)
- 2.2 Camping World Truck Series (1995–2004)
- 2.3 Current Rule (National Series since July 25, 2004 and Regional Series since 2010 Season All-Star Showdown in 2011)
- 3 Other uses
- 4 Notes and references
- 5 External links
In the ARCA Racing Series, there is a two-stage version of the rule. The rules are arranged such that the checkered flag must wave under green flag conditions.
- If the final scheduled lap of the race is under caution, when the green flag is waved for the restart attempt, there are two laps remaining in the race. If a caution comes out at any time during the first of the two laps, each subsequent restart will be a two-lap restart.
- If the furled yellow flag with a downwards-pointed finger (one lap before restart in single file formation) is given with two laps remaining in the race, and the restart is on the final scheduled lap, the green and white flag will be waved together and the race will have only one lap remaining.
- If a caution comes out during the final lap (after the white flag has been displayed), the race returns to yellow immediately. On the ensuing restart, a green and white flag are waved to signal one lap is remaining in the race. Should a yellow flag wave before the leader crosses the finish line, the race will continue under yellow until the restart, which again is one lap.
Such a format allows an unlimited number of attempts at a green flag finish. During the event at Gateway International Raceway on July 28, 2006, 22 laps (27.5 miles) were added to the 120-lap (150-mile) scheduled distance.
This version, or a similar variant with no green/white rule, is used in most short tracks.
Regional Series (until 2010)
The Camping World East and West Series use a rule similar to the ARCA rule with an unlimited number of attempts. In April 2005, two green-white-checkered attempts were used at Phoenix International Raceway for a Camping World West race.
Camping World Truck Series (1995–2004)
The NASCAR Camping World truck Series adopted a green-white-checkered flag rule initially during nationally televised 200-lap exhibition races at Tucson Raceway Park in Arizona.
When the green flag is waved on the restart, there are two laps remaining in the race. If the yellow flag comes out at any time during the restart, each subsequent restart will be a two-lap restart. (From 1995 until mid-1998 and again since 2003, racing back to the caution was prohibited in the series.)
However, if on the restart, there will be just one scheduled lap remaining, there is a green and white flag restart for the lap. That rule was implemented a few times.
In the middle of the 1998 season, however, a rule change by NASCAR affected the rule; if the yellow flag comes out during the final lap of the race, the trucks would race to the finish. (In the middle of the 1998 season, as NASCAR eliminated the two-segment races, NASCAR permitted the trucks to race to the caution.) That rule was eliminated in September 2003 as a result of the ban on racing back to the caution following a dangerous incident in Loudon.
In a July 2004 race at Gateway International Raceway, multiple green-white-checkered restarts resulted in a 160-lap race going 14 additional laps. After that race, the rule was changed to standardise the rule with NASCAR's other national series, which also adopted the rule.
Current Rule (National Series since July 25, 2004 and Regional Series since 2010 Season All-Star Showdown in 2011)
Throughout most of its history, NASCAR held to a very strict rule of their races going only to the advertised distance, as indicated on the entry form, in national racing. The only exception was at The Winston, an exhibition, non-points, "all star" event. In that event, caution laps would not count during the final segment(s) of the race, in order to insure the race would have maximum green flag racing.
From 2001–2002, the other non-points, exhibition event during the season, the Bud Shootout adopted the green-white-checkered rule, if necessary. It was not used during that period.
In the late 1990s, NASCAR's other two national series, the Sprint Cup Series and Nationwide Series, had set a loose precedent that allowed for a red flag to be displayed during a late-race caution flag. At the time, races on the other two national circuits were prohibited from being extended beyond the advertised distance. The action would temporarily halt the race, allowing safety crews to clear the track, and allow for a full restart, without the field having burned up the remaining laps under yellow. Initially, the rule was used only on short tracks, but eventually spread to all races. The implementation, however, was widely inconsistent, and inevitably would lead to controversy.
At the 2002 Pepsi 400, a late-race caution came out, and participants and spectators expected a red flag. NASCAR chose not to halt the race, citing too few laps remaining, and fans pelted the circuit with cans, seat cushions, and other debris as it finished under yellow. The decision not to go back to green was based on incidents that happened on the two restrictor plate tracks (Daytona International Speedway and Talladega Superspeedway). In the 1993 Winston 500 at Talladega, the field went back to green with two laps to go. Through the dogleg towards the finish line, the tightly-bunched field caused Dale Earnhardt to tag Rusty Wallace, causing Wallace to go airborne and flip violently, similar to his earlier wreck at the 1993 Daytona 500. In the 1997 Pepsi 400 at Daytona, a restart with one lap to go caused a multi-car crash, which injured Mark Martin.
For 2003 and 2004, the red flag rules were clarified somewhat to standardise the use, with a specific lap, usually five laps remaining, being the lap designated as the "last red flag lap." Television would mention such a lap during the race specifics on broadcasts. In late 2003, NASCAR, in an unrelated move, added the Beneficiary Rule and prohibited drivers from racing back to the start/finish line when yellow flags were displayed after Casey Mears, attempting to gain a lap back, nearly ran into a stalled Dale Jarrett in such an instance. The field was frozen at the onset of the yellow based on the last timing interval. The unforeseen combination of the two new rules created unexpected problems.
A controversial finish to the 2004 Aaron's 499 at Talladega occurred as Jeff Gordon and Dale Earnhardt, Jr. were racing for the lead with five laps remaining. The field was working Lap 184 of 188, beyond the point of when a red flag could halt the race (the last red flag lap was 184). As Earnhardt, Jr. was passing Gordon for the lead, Brian Vickers spun in turn three. When the caution was displayed, freezing the field, it was determined that Gordon's car was just ahead of Earnhardt's, and Gordon was scored as the leader, and thus, the winner. On the final lap, some angry fans again threw debris (seat cushions, alcoholic beverage bottles) on the track at Gordon's car, which angered many observers, including Fox commentators Chris Myers and Jeff Hammond.
In the wake of the controversies, in mid-July 2004, all three touring series adopted a new, revised green-white-checkered rule. The revised format handles late-race cautions in a standardized manner. The rule was adopted in 2011 for all NASCAR regional series, and adopted in 2012 for Euro Race Car after NASCAR took over sanctioning of the series as a NASCAR regional series.
Caution after the leader starts final lap (2004–present) or after third restart in situation (2010–present)
The race is over. Positions are frozen at the moment of the yellow flag, and the scoring is official as cars cross the finish line. The second point is a critical one: cars must be able to complete the final lap under their own power. The 2007 LifeLock 400 was somewhat controversial for this reason. Greg Biffle was the leader on the final lap when the caution flag was shown, but his car then ran out of fuel. Biffle was not able to maintain pace car speed, but he did manage to coast across the finish line and was awarded the win despite being passed by some cars while under caution.
There is a notable exception to this rule. If there is an incident during the final lap behind the leaders, and the run to the finish line is clear for the leaders, NASCAR may delay the caution until the checkered flag is shown, allowing the leaders to race for the win. In such cases track safety workers may arrive at the scene of the incident. This exception was used at the 2007 Daytona 500 during a last lap wreck in the tri-oval, the 2009 Aaron's 499 when Carl Edwards went airborne into the catch fence off of Ryan Newman's hood and came to a rest in the middle of the track as cars skirted to either side to cross the line, the 2013 Daytona 500 where a small wreck occurred in turn 2 at the back of the pack, and the 2013 Coke Zero 400 where two wrecks unfolded on the last lap - one in turn 2 and another coming to the tri-oval.
Caution with two laps remaining
If a caution period starts, or continues, any time with two laps remaining in the scheduled distance, NASCAR allows at least one attempt to finish the race under green flag conditions. From 2004 through 2009, one attempt was allowed; starting in 2010, up to three attempts can be made. This began with the 2010 Budweiser Shootout. With two laps to go, during an official green-white checkered, Jeff Gordon got into the back of Greg Biffle, creating a multi-car wreck and giving the win to Kevin Harvick.
When it is determined that the track is clear for racing, the green flag is shown, indicating the restart. As the leader completes the first lap, the white flag is shown, signaling the final lap. As the leader completes the second lap, the checkered flag is shown, signaling the conclusion of the race.
If the caution flag is shown during the first of the two laps, positions are frozen as they would be during a regular race caution, and a second green-white-checker attempt will be made, up to a maximum of three attempts. If the caution flag after the white flag is shown during the first two attempts, or during the third attempt at any time, the race is over. The field is automatically frozen at the moment of the yellow flag, and the scoring is official as cars cross the finish line.
In the event of a race ending due to caution, video evidence is used in addition to scoring loops to determine the official order of finish.
A green-white-checkered finish will extend the race beyond its advertised distance, and competitors were not allowed to pit for fuel without losing positions. Teams are responsible for considering the extended distance in their fuel strategies. However, if the cleanup is expected to take considerable time, NASCAR may red flag the race with the cars on the track, so that cars don't consume all their fuel under caution.
Often short track races that run less than 55km (35 miles) will use a rule the states no caution laps count. This is commonplace for typical 30-lap feature races.
Other short track races (especially those of 100 laps or more) will use a rule stating the last five laps must be run under green flag conditions, often with a rule stating five consecutive laps must be run under green. If a caution occurs during the last five laps, the counter may be reset, depending on the track, and the five laps begins on the ensuing restart.
British Superbike Championship motorcycle racing uses a similar rule after two-thirds of the race has been completed. After two-thirds of the race laps (rounded down) have been completed, if a caution is called, the race will be extended by three laps.
For example, in an 18-lap race, the caution is waved on the 14th lap (two-thirds is 12 laps). The caution period lasts three laps, with the safety car coming in at the end of the 16th lap, effectively calling the restart on Lap 17. which would be two laps remaining. However, British Superbike rules state once two-thirds of the race distance is passed, the first three laps of a caution "do not count as race laps," similar to short-track racing, thereby implementing a green-white-checkered style rule where the three laps are added to the scheduled race distance, thereby making the race a total of 21 laps.
Notes and references
- Newton, David (2010-02-11). "Green-white-checker rule expanded". ESPN.com. Retrieved 2010-02-11.