Groups
1. Race Distances:
| Event | Total Dsitance | Swim | Bike | Run (mountain Cross) |
| X-Triathlon | 128 KM | 3 KM | 100 KM | 25 KM |
| Extreme Triathlon Relay (X-Relay) | 128 KM | 3 KM | 100 KM | 25 KM |
| Extreme Triathlon Sprint (X-Sprint) | 64 KM | 1.5 KM | 50 KM | 12.5 KM |
| Extreme Triathlon Fun (X-Fun) | 30.75 KM | 0.75 KM | 25 KM | 5 KM |
| X-Aquathlon | 5.75 KM | 0.75 KM | — | 5 KM |
- Additional information about the race venue and route will be published on:
- CTSA Member Infomation System
- Weihai Sports Bureau website: http://tyj.weihai.gov.cn/
- Weihai Sports WeChat Official Account: whtyxx
- Note: Final race distances may be adjusted. Refer to the Athlete Guide or Technical Briefing for confirmation.
2. Group Settings & Eligibility Requirements
| X-Triathlon Sprint (16 Groups) | Age Range |
| X-Sprint M 20-24 Age Group | 18-24 years |
| X-Sprint M 25-29 Age Group | 25-29 years |
| X-Sprint M 30-34 Age Group | 30-34 years |
| X-Sprint M 35-39 Age Group | 35-39 years |
| X-Sprint M 40-44 Age Group | 40-44 years |
| X-Sprint M 45-49 Age Group | 45-49 years |
| X-Sprint M 50-54 Age Group | 50-54 years |
| X-Sprint M 55-59 Age Group | 55-59 years |
| X-Sprint M 60-64 Age Group | 60-64 years |
| X-Sprint M 65-69 Age Group | 65-69 years |
| X-Sprint M 70+ Age Group | 70-75 years |
| X-Sprint F 20-29 Age Group | 20-29 years |
| X-Sprint F 30-39 Age Group | 30-39 years |
| X-Sprint F 40-49 Age Group | 40-49 years |
| X-Sprint F 50-59 Age Group | 50-59 years |
| X-Sprint F 60+ Age Group | 60-75 years |
| X-Triathlon Fun (11 Group) | Age Range |
| X-Fun M 16-19 Age Group | 16-19 years |
| X-Fun M 20-29 Age Group | 20-29 years |
| X-Fun M 30-39 Age Group | 30-39 years |
| X-Fun M 40-44 Age Group | 40-44 years |
| X-Fun M 45-49 Age Group | 45-49 years |
| X-Fun M 50-59 Age Group | 50-59 years |
| X-Fun M 60+ Age Group | 60-75 years |
| X-Fun F 16-19 Age Group | 16-19 years |
| X-Fun F 20-34 Age Group | 20-34 years |
| X-Fun F 35-49 Age Group | 35-49 years |
| X-Fun F50+ Age Group | 50-75 years |
| X-Aquathlon (4 Group) | Age Range |
| X-Aquathlon M 16-40 Age Group | 16-40 years |
| X-Aquathlon M 41-75 Age Group | 41-75 years |
| X-Aquathlon F 16-40 Age Group | 16-40 years |
| X-Aquarhlon F 41-75 Age Group | 41-75 years |
- 1. Athlete age is determined as of December 31 of the competition year.
- 2. Any group with 3 or fewer registrants will not be held. Athletes in such groups will be reassigned to the nearest age group. Final grouping will be announced in the official start list.
- 3. Relay Rules: Each team consists of 3 athletes (no gender restriction).Each team member must complete one discipline: swimming, cycling, or running.Transitions occur in a designated area via timing chip exchange.The team's total time is recorded based on when the last runner crosses the finish line.
