Series Rules & Regulations

  • Teams participating with the Series will be subject to a mandatory Technical/Safety Inspection at each event before entering competition.
  • Qualifying will consist of three or four sessions. If due to weather or other conditions, one completed round of qualifying is all that’s required to set the field.
  • Competitors will receive a run card (bracket classes) or a pairings sheet (heads-up classes) that will determine what lane your qualifying passes will be in. The series reserves the right to modify qualifying lane assignments at any time.
  • Once qualifying has concluded and a ladder has been established, pairings will not be changed. However, should a qualified vehicle and racer be unable to make the first round of eliminations, an alternate will be inserted in his or her place.
  • All first-round points will remain with the qualified racer. Alternates will not be eligible for any round points, regardless of how far they advance past round one.
  • If an event is postponed due to weather or other conditions prior to the start of eliminations, it is necessary that the qualified driver be in attendance and participates at the rescheduled date to be eligible for all points and awards.
  • If an event is postponed due to weather or other conditions, the teams elimination round runs at the rescheduled date may be required to count as qualifying for the current event.
  • Contestants must prominently display the Series decals and class sponsor decals in approved locations. Failure to comply will result in the loss of earned event payouts.
  • All crew members are expected to wear matching collared shirts and will be required to wear Series supplied identification for starting line access.
  • Pre-paid competitors and their crew will be placed on a pre-entry list to expedite entry into the race tracks.
  • All cars in competition must be tasteful in appearance, lettered/numbered, and professionally decaled.
  • Competitors and crew members must sign the Insurance Waiver when provided by the track.
  • It is the responsibility of the participant, not the Series or any track, to ensure that all safety equipment is not modified or altered, is approved and is correctly installed, worn, maintained and used.

Qualifying Procedures

During qualifying, all bracket competitors will be given a lane assignment for their first round of qualifying.

Heads-up competitors will be paired for qualifying and given lane assignments. The pairings and lane assignments will be determined by a random draw.

To prevent multiple “single runs”, USDS officials reserve the right to change lane assignments at any time. Every effort will be made to avoid “single runs”, in qualifying. The best way to ensure that your qualifying lane is not changed, is to ensure that you are in the staging lanes, at the requested times.

Code of Conduct

Competitors and their crew are expected, at all times, to conduct themselves in a professional and non-disruptive manner consistent with good sportsmanship, fairness and safety. Drag racing is a family-oriented sport with events suitable for attendance by all and, as such, any participant, or crew member who;

(1) verbally or physically threatens another person;
(2) uses vulgar or derogatory language;
(3) engages in unsportsmanlike conduct;
(4) engages in conduct detrimental to the sport of racing;
(5) creates a condition or circumstance that is unsafe, unfair, unsportsmanlike, or out of order;
shall be subject to disciplinary action.


Pro Modified Class Rules

SUPERCHARGED (Screw-type Supercharger) ENTRIES: Minimum weight (clutch or converter) at the conclusion of run, including driver: 2600 pounds.

Maximum C-Rotor supercharger overdrive limit is 90.0 percent

Maximum D-Rotor supercharger overdrive limit is 108.0 percent

SUPERCHARGED (Roots Supercharger) ENTRIES:

Minimum weight at the conclusion of run, including driver: 2500 pounds 14-71 Supercharger only

Maximum supercharger overdrive limit is 50.0 percent

TURBOCHARGED ENTRIES:

Minimum weight at the conclusion of run, incl. driver: 2600lbs,

Single turbocharger limited to 120mm maximum;

Twin turbocharger limited to 88mm maximum.

NITROUS ENTRIES:

Minimum weight at the conclusion of run, incl. driver: 2425lbs.

Competitors must comply with NHRA Top Sportsman / Advance ET Safety Rules and Regulations at TMP and IHRA Top Sportsman / Advance ET Safety Rules and Regulations at the GBM.

The use of Nitromethane is prohibited.

Form fitting engineered seat mandatory.

These rules may be adjusted at anytime during the season to ensure parity amongst the class.

Pro Modified Points Distribution

Entry Points: 50

Qualifying Points: 1st – 8, 2nd – 7, 3rd – 6, 4th – 5, 5th & 6th – 4, 7th & 8th – 3, 9 through12 – 2, 13-16 – 1 point.

All first round competitors earn 20 points and an additional 20 points for each round win thereafter.

Additional Points

10 points to all contestants after completion of one qualifying run.

20 points for ET record* (Starting Stratford Weekend – July 14-16)

5 points for best reaction time in competition.

5 points for the quickest ET during eliminations.

Low E.T of each qualifying session – 3, Second lowest – 2, Third lowest – 1.

*Only if full session is completed

Note: Teams must complete Technical Inspection to receive Entry points.

Ties will be broken as follows: 1 – Most event win points; 2 – Most event runner up points; 3 – Most round points; 4 – Most qualifying points.


Outlaw 10.5 Class Rules

1/8th mile racing, 16 car qualified field

400 Pro Tree, Heads up Racing

Engine: Single Power Adders ONLY

Naturally Aspirated – No Size Limit & No Minimum Weight

Nitrous – Small Block stock bore spacing No Minimum Weight – Small Block non-stock bore spacing 2150lbs (deduct 100lbs for less than 550 CI) – Big Block 4.84 & 4.90 bore spacing 2150lbs(deduct 100lbs for less than 550CI) – Big Block 5.00 bore spacing 2550lbs – Big Block 5.20/5.30 bore spacing 2650lbs, Max Eng. Size 1,000 CID

Turbo Charged & Super Charged – Single Turbo Small Block 2500lbs, Big Block 2700lbs – Twin Turbo 91mm-94mm Small Block 2650lbs, Big Blocks 3000lbs – Twin Turbo 88mm & smaller small block 2550lbs, Big Blocks 2900lbs – Turbo Charged Big Block less than 550ci utilizing a stock bore space block deduct 100lbs – Centrifugal Superchargers Small Block 2500lbs, Big Block 2700lbs(deduct 100lbs for stock bore space less than 550CI) – Twin Centrifugal Superchargers Small Block 2700lbs, Big Block 3000lbs(deduct 100lbs for stock bore space less than 550CI) – Roots Supercharger Small Block 2500lbs, Big Block 2700lbs – Screw Supercharger maximum engine size 540CI, maximum overdrive 122% “C” rotor 3000lbs, maximum overdrive 125% “D” rotor 2850lbs, Turbo Charged or Supercharged with conventional(non-hemi) heads deduct 100lbs 4 & 6 cylinder alcohol & intercooler permitted. 350ci and smaller no minimum weight, 351-499ci will be required to run at small block weights, 500-670ci will be required to run at big block weights…

Maximum engine size on all turbo charged entries is 670CI – Any turbo charged or supercharged combination utilizing a SB block with non-stock bore space add 100 lbs to above weights.

Twin Turbo charged combinations using 84mm and smaller deduct 100 lbs from current weights

Mufflers mandatory, inserts are not considered mufflers, turbo charged entries DO NOT NEED MUFFLERS. Zoomies permitted but the type of zoomie must be approved prior to use. Maximum tubing size for zoomies is 2-5/8″.

If utilizing 1990 or older factory a-arms deduct 50 lbs.

Alcohol permitted on non-intercooled cars only but permitted on 4 & 6 cylinder cars. Forced Induction cars utilizing racing gas deduct 100lbs. Nitro-methane prohibited.

NHRA Pro ladder and safety tech.

Minimum Ground clearance of 3″ from front of nose to 12″ behind the front spindle.

Towing allowed but you must stop at scales.

Deep staging allowed, but starter will not wait for racer to get deep. Auto-start will be on at ALL times. Once both vehicles are pre-staged either side stage light will activate a 7 second auto-start. Once your competitor stages you will have 7 seconds to stage. If you fail to stage within that time the tree will automatically activate and you will be disqualified. Disqualifications will be based on a first or worse basis in accordance with the NHRA rule book. Controversial decisions not covered by the NHRA rule book will be determined by the race director.

Head & Neck restraint MANDATORY.

Lower engine containment device MANDATORY.

Maximum front overhang 45″ measured from the centerline of the front spindles.

NHRA chassis certification mandatory.

Mandatory drive tire size of 33×10.5W on a 15″ or 16″ wheel.

Air bottles on N/A, Supercharged and Turbo Charged vehicles are to be filled with CO2 only. The use of nitrous oxide in place of CO2 is PROHIBITED.

All fuels used are to be unmodified fuel as produced by the original manufacturer and must be commercially available. The use of fuel additives is PROHIBITED. All entries are subject to fuel check ay any time.

The use of specially produced “one off” parts that are not commercially available and are deemed, by race director to have a performance advantage is PROHIBITED.

Rules are subject to change at any time without notice in order to keep parity.

Outlaw 10.5 Points Distribution

Entry Points: 100

Qualifying Points: 1st – 116, 2nd – 115, 3rd – 114, 4th – 113, 5th – 112, 6th – 111, 7th – 110, 8th – 109, 9th – 108, 10th – 107, 11th – 106, 12th – 105, 13th – 104, 14th – 103, 15th – 102, 16th – 101, 17th – 100……

Competition Points: Winner – 40, Runner-up – 30, Semi-finalist – 20, Quarter-finalist – 10

Bonus Points: Five (5) bonus points to the competitor with the best reaction time in competition.

Note: Teams must complete Technical Inspection to receive Entry points.

Ties will be broken as follows: 1 – Most event win points; 2 – Most event runner up points; 3 – Most round points; 4 – Most qualifying points.


Top Dragster Class Rules

Maximum dial is 7.70 seconds quarter-mile, and 4.99 seconds eighth-mile for Top Dragster.

Cross Talk will be utilized wherever possible.

Each entry must have a current NHRA or IHRA Competition License.

Engine diapers mandatory.

Double Entries are prohibited.

Competitors may dial quicker between rounds; however they may only dial a maximum of .20-second slower than their qualified time.

Lane choice – Low dial

Top Sportsman will compete on a Sportsman ladder.

Handicapped start system utilizing a .5-second full tree.

Top Dragster will be prohibited from running quicker than 6.00 seconds, as per NHRA rules. The Ultimate Showdown Series will enforce this rule at all races including events at IHRA sanctioned tracks.

Top Sportsman & Top Dragster are two separate Classes. Drivers may enter and compete in both.

Competitors must comply with NHRA Top Dragster Safety Rules and Regulations at NHRA Sanctioned Tracks and IHRA Top Sportsman Safety Rules and Regulations at IHRA Sanctioned tracks.

The use of any ignition system (ie. MSD 7531) or related accessory (ie. MSD 7561) or power grid accessory (ie. MSD 7761) that uses a multi-point rev limiter or rate of acceleration limiter are prohibited from use.

Top Dragster Points Distribution

Entry Points: 100

Qualifying Points: 1st and 2nd – 20, 3rd and 4th – 19, 5th and 6th – 18, 7th and 8th – 17, 9th and 10th – 16, 11th and 12th – 15, 13th and 14th – 14, 15th and 16th – 13, 17th and 18th – 12, 19th and 20th – 11, 21st and 22nd – 10, 23rd and 24th – 9, 25th and 26th – 8, 27th and 28th – 7, 29th and 30th – 6, 31st and 32nd – 5, 33rd and 34th – 4, 35th and 36th – 3, 37th and 38th – 2, 39th and 40th – 1.

Competition Points: Winner – 120, Runner-up – 100, Semi-finalist – 80, Quarter-finalist – 60, Eighth-finalist – 40, First round loser – 20

Bonus Points: Five (5) bonus points to the competitor with the best reaction time in competition. Ten (10) points for perfect (.000) reaction time.

Note: Teams must complete Technical Inspection to receive Entry Points.

Ties will be broken as follows: 1 – Most event win points; 2 – Most event runner up points; 3 – Most round points; 4 – Most qualifying points.


Top Sportsman Class Rules

Maximum dial-in is 7.99 seconds quarter-mile, and 5.29 seconds eighth-mile for Top Sportsman.

Cross Talk will be utilized wherever possible.

Each entry must have a current NHRA or IHRA Competition License.

Engine diapers mandatory.

Double Entries are prohibited.

Competitors may dial quicker between rounds; however they may only dial a maximum of .20-second slower than their qualified time.

Lane choice – Low dial

Top Sportsman will compete on a Sportsman ladder.

Handicapped start system utilizing a .5-second full tree.

Top Sportsman will be prohibited from running quicker than 6.00 seconds, as per NHRA rules. The Ultimate Showdown Series will enforce this rule at all races including events at IHRA sanctioned tracks.

Top Sportsman & Top Dragster are two separate Classes. Drivers may enter and compete in both.

Competitors must comply with NHRA Top Sportsman Safety Rules and Regulations at NHRA Sanctioned Tracks and IHRA Top Sportsman Safety Rules and Regulations at IHRA Sanctioned tracks.

The use of any ignition system (ie. MSD 7531) or related accessory (ie. MSD 7561) or power grid accessory (ie. MSD 7761) that uses a multi-point rev limiter or rate of acceleration limiter are prohibited from use.

Top Sportsman Points Distribution

Entry Points: 100

Qualifying Points: 1st and 2nd – 20, 3rd and 4th – 19, 5th and 6th – 18, 7th and 8th – 17, 9th and 10th – 16, 11th and 12th – 15, 13th and 14th – 14, 15th and 16th – 13, 17th and 18th – 12, 19th and 20th – 11, 21st and 22nd – 10, 23rd and 24th – 9, 25th and 26th – 8, 27th and 28th – 7, 29th and 30th – 6, 31st and 32nd – 5, 33rd and 34th – 4, 35th and 36th – 3, 37th and 38th – 2, 39th and 40th – 1.

Competition Points: Winner – 120, Runner-up – 100, Semi-finalist – 80, Quarter-finalist – 60, Eighth-finalist – 40, First round loser – 20

Bonus Points: Five (5) bonus points to the competitor with the best reaction time in competition. Ten (10) points for perfect (.000) reaction time.

Note: Teams must complete Technical Inspection to receive Entry Points.

Ties will be broken as follows: 1 – Most event win points; 2 – Most event runner up points; 3 – Most round points; 4 – Most qualifying points.