Quick disclaimer – This is only for teams who play a regular head-to-head season/dual match season. For example, Cross County, Track and Swimming do not apply. Also, I haven’t been able to find wrestling results, so no wrestling teams on the list. Also also, I used the NCAA format for ties, where they are worth .5 of a win and .5 of a loss.

Results via Oregonprepsports.net
TEAM – RECORD – WIN PERCENTAGE
1 Summit Boys Tennis – 53-8 – 86.8%
2 Bend Girls Soccer – 71-8-8 – 85%
3 Mountain View Football – 47-10 – 82.4%
4 Crook County Volleyball – 154-32-4 – 82.1%
5 Sisters Volleyball – 121-28-4 – 80.3%
6 (t) Bend Boys Soccer – 64-16-6 – 77%
6 (t) Summit Girls Soccer – 63-16-8 – 77%
8 Mountain View Boys Basketball – 97-34 – 74%
9 Bend Girls Tennis – 48-19 – 71.6%
10 Culver Football – 42-17 – 71.1%
11 Summit Volleyball – 89-39 – 69.5%
12 Bend Baseball – 98-44 – 69%
13 Mountain View Volleyball – 84-43-1 – 66%

As you can see, volleyball teams in Central Oregon win a lot of their matches! Crook County, Sisters, Summit and Mountain View all made the top 13. Also Bend and Summit girls soccer teams placed high and that’s with them beating up on each other each year.