2025 Greater Houston Race Series
We are excited to announce the return of the Greater Houston Race Series (GHRS) for 2025!
All online early race entries are eligible for the Free set of tires drawing at the driver’s meeting! *Must have 40 or more online entries for tire drawing.
The Greater Houston Race Series will be a 14-race season, 7 at Speedsportz and 7 at GCKI. This will be made up of a Spring and Fall Championship, with the best 5 out of 7 races per season counting for points. To be eligible for a season championship you must compete in at least 2 events at each track per Spring or Fall Season. (Double header counts as one race event for drops and/or participation purposes)
In addition to the Spring and Fall Series winners, the 2025 GHRS overall Championship will be the combined best 5 of 7 race points from both the Spring and Fall Series. To qualify for the 2025 overall championship, a minimum of 2 race events per season per venue is required.
- GHRS SPRING SERIES
- Race 1 - Jan 26 GCKI (CW)
- Race 2 - Feb 16 SRP (Full Track CW)
- Race 3 - Mar 9 GCKI (CCW)
- Race 4 - Apr 13 SRP
- Race 5 & 6 - May 17 (CW) & 18 (CCW) GCKI
- Race 7 - Jun 16 SRP
- GHRS FALL SERIES
- Race 1 - Jul 13 GCKI (CW)
- Race 2 - Aug 9 SRP Sat. Night Race
- Race 3 - Sep 7 GCKI (CCW)
- Race 4 & 5 - Oct 11 & 12 SRP
- Race 6 - Nov 9 GCKI (CW)
Race 7 - Dec 14 SRP
- Members of either SRP or GCKI pay $75 race entry fee, which includes ONLY the racers wrist band. All others buy wrist band at the gate.
- The non-member entry fee at both tracks is $125.
- Club members may practice for free the day before a race at both tracks, Non-members pay the track defined practice day fee.
RACE FORMAT:
The race day format shall be controlled practice, followed by qualifying session, 12 lap Pre-final, 16 lap main. (Number of laps may be modified by race director based on weather or track configuration)
In the event a class has less than 4 entries, race day trophies will be awarded for one less than the number of entries. Each class MUST have a minimum of 5 entries for that race to count towards season points.
Classes may be combined on track at the discretion of the race director, depending on the number of entries.
*Classes may be added/dropped, or weights modified if needed to enable fair and competitive racing.
SPECS AND RACE CLASSES:
2025 2-STRIKE CLASS STRUCTURE
| CLASS |
AGE RANGE |
MINIMUM WEIGHT |
| Micro Swift |
7-10 |
220 |
| Mini Swift |
9-12 |
245 |
| 100cc Jr |
12-15 |
320 |
| 100 Sr |
15+ |
360 |
| 100cc Master |
30+ |
390 |
| Sr Shifter |
15+ |
385 |
| TAG Jr |
12-15 |
320 |
| TAG Sr |
15+ |
360 |
| TAG Master |
30+ |
385 |
Engine Specifications:
IAME East Technical - Engine Fiche & Supplemental Rules
*If running non-IAME engine, equivalent Engine Fiche or Technical Documents*
**Fuel**
Fuel: VP MS98, VP C12
Oil: Motul 2T / ELF HTX909
**Tires**
All classes shall run Evinco Blue tires, except TAG and Shifter which run Evinco Red.
Both old and new compounds are acceptable.
2025 4-STROKE CLASS STRUCTURE:
| CLASS |
AGE RANGE |
MINIMUM WEIGHT |
CARB SLIDE / OTHER |
| GXH50 Kid Kart |
5-8 |
150 |
Gearing - 15:89 |
| LO206 Cadet |
7-13 |
245 |
Green (#555740) |
| LO206 Jr |
12-15 |
320 |
Yellow (#555741) |
| LO206 Sr |
15+ |
360 |
Black (#55590) |
| LO206 Master |
30+ |
390 |
Black (#55590) |
Engine Specifications:
LO206 United States Ruleset.
Kid Kart Ruleset:
Honda Performance Development GXH50 Class Information
*Both Briggs and Honda engine packages are allowed for Kid Kart class. Weight for
either engine package may be adjusted at the discretion of series management to
enhance fairness if needed
**Fuel**
VP MS93 / Buc-ees Ethanol-free 87 octane / Speedsportz Ethanol-free
**Tires**
All classes shall run Evinco Blue tires.
Both old and new compounds are acceptable
*Classes may be added/dropped, or weights modified if needed to enable fair and competitive racing.
Click on map for directions