Description
Reston Masters Swim Team is pleased to announce the 37th edition of the Jim McDonnell Lake Swims.
Sanctioned by Potomac Valley LMSC for US Masters Swimming, Sanction#: 105-W001
The swims will be held on Sunday, May 25, 2025 at Lake Audubon in Reston, VA. (Directions)
Race Information
Course Map: 1-mile open water course (map). Swim counterclockwise beginning at Lake Audubon Pool end.
The races will be started using a rolling start: Instructions will be provided for swimmers during the briefing prior to the race. Swimmers will be seeded fast to slow using the 1650 yard time provided at registration. All participants will wear timing chips.
Race Day Timeline:
- 6:00am: Check-in opens (all races)
- 6:30am: Lake Audubon Pool house opens
- 7:00am: Lake Audubon Pool opens for warm-up
- 7:30am: 1-Mile Line-up and Safety Briefing
- 8:00am: 1-Mile race begins
- 8:50am: 1-Mile reaches time limit and race ends
- 9:00am: 2-Mile check-in closes
- 9:15am: 2 Mile Line-up and Safety Briefing
- 9:45am: 2-Mile race begins
- 11:00am: Lake Audubon Pool closes for warm-down
- 11:30am: Lake Audubon Pool house closes and race course clean-up begins
Swimmers may enter both the 1-mile and 2-mile swims:
- 1-mile Race: CAT I & CAT II divisions; time limit 50 minutes.
- 2-mile Race: CAT I and CAT II divisions; time limit 90 minutes. All 2-mile contestants who have not completed the first 1-mile lap within 45 minutes will be directed to exit the course as they pass the boat ramp.
Temperature Restrictions: No wetsuits or heat retaining swimwear in water above 78 degrees. If swimmers are not able to meet the requirements for CAT I swimwear, then they may swim in CAT II using swimwear configurations allowed in CAT II (see Swimwear Categories below).
Water Quality: Reston lakes are managed by Reston Association, which does not maintain the lakes to swimming standards. Participants swim at their own risk. Approximately one week before the race, RA will test the water and if deemed unsafe, RMST will cancel the event.
Scoring Divisions for Races: Scoring divisions are divided by overall, gender, five year age groups and swimwear category. All scoring divisions in a race swim simultaneously and are scored separately. You may swim in only one scoring division for each race distance. You may change your Swimwear Category at the starting line.
Swimwear Categories: USMS Category I (CAT I): swimsuits shall be made from textile materials; may not be buoyant or heat retaining; for both men and women, the swimsuit shall not cover the neck and shall not extend past the shoulder nor below the ankles. USMS Category II (CAT II): all other swimsuits, including wetsuits; no restriction on coverage. There are other differences, which you should be familiar with, so there are no surprises on race day. Swimwear categories are defined in Article 303.4 Swimwear for Open Water Events (www.usms.org/rules/part3.pdf, 2024 USMS Rule Book, pg 67.) You may change your Swimwear Category at the starting line.
USMS, Local, State and National COVID-19 protocols will be followed.
Entry Information
Regular registration closes on Sunday May 18th, 2025 at 11:59 PM EDT.
No entry changes after entry closing date. This includes any new entries, added swims, or changed entry information.
Eligibility: Minimum participation age is 18 by race event date. Swimmers must be registered with USMS or be a Masters swimming member of a World Aquatics member federation or obtain a USMS One Event registration (OEVT).
Entry limit per race is a maximum of 300 swimmers.
Race Fee Schedule
This year we are offering early-bird pricing and we will also be extending our regular registration window with last-minute pricing. The fees and registration periods are:
| Registration Period | 1 Mile | 2 Mile | 1+2 Mile | Begins | Ends |
|---|---|---|---|---|---|
| Early-Bird Pricing | $100** | $100** | $140** | January 1st | January 13th @ Midnight EST |
| Regular Pricing | $125** | $125** | $175** | January 14th | May 18th @ Midnight EDT |
| Last-Minute Pricing | $175** | $175** | $220** | May 19th | May 23th @ Midnight EDT |
** One Event Registration: 2025 prices are unchanged from 2024. However, all registration fees listed above include the $20 fee for USMS One Event Registration. This fee will be discounted following successful USMS or World Aquatics verification
Refunds, Transfers, and Deferrals: There are no refunds, no deferrals of fees to next year and no selling/transfer of slots in swims. Swimmers will be required to confirm agreement with this policy before submitting their entry.
Registration Protection Insurance: We are offering the option to purchase Protecht RegShield registration protection insurance. Registration protection insurance can provide peace of mind to participants who register early and are concerned a future covered reason such as an injury or family emergency may prevent them from participating in the event.
Additional Information
Individual Awards: Awards will be given to 1st through 3rd place for age group scoring divisions.
T-shirts: Each 1-mile or 2-mile race participant will receive a maximum of one t-shirt with their entry.
Benefit: The Jim McDonnell Lake Swims donate a portion of the event proceeds to local charities.
Historical Water Temperatures
Lake Audubon's temperature fluctuates during the day and is dependent on sunshine and rainfall. The 2-Mile race held at 9:45AM on 5/29/2016 is the only race in recent history where the water was above 78º and wetsuits were illegal. Wetsuits were legal for the 2016 1-Mile race at 8:00AM. This year's water temperatures are here.
Race Contact Info
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