Times achieved at an altitude of 3,000 feet or above may be adjusted as follows:
Time Adjustment
| Event Distance |
3000-4250 Feet Billings Great Falls Helena Kalispell Missoula |
4251-6500 Feet Bozeman Butte |
Above 6500 Feet |
| 200 |
.50 Sec |
1.20 Sec |
1.60 Sec |
| 400 or 500 |
2.50 Sec |
5.00 Sec |
7.00 Sec |
| 800 Freestyle Relay |
2.00 Sec |
4.8 Sec |
6.4 Sec |
| 800 or 1000 |
5.00 Sec |
10.00 Sec |
15.00 Sec |
| 1500 or 1650 |
11.00 Sec |
23.00 Sec |
32.50 Sec |
(1) Subtract the time indicated above from the actual time achieved at altitude. This is the time to be used on the entry form and seeding will be based on that time. Information relative to the adjustment accompanying the entry form must include name of swimmer, event, date of performance, elevation location, actual time, corrected time and signature of coach.
(2) A swimmer or relay may use the above adjustments to meet the national qualifying time standard and seeding will be based upon that time.
-Taken from the 2013 USA Swimming Times Module Policy Manual
