Search

Tammie Sevieri-Coffey

Boise, ID
4.0S year-end 2026
91 matches · 54W–37L · seasons 20192026
Bump probability
3.54.04.5lowhigh

Where this rating stands today. Taller means more likely. The dashed lines are the band edges, and the three shaded areas are the three percentages below.

3.70
estimated dynamic rating
Where the rating sits now, on 10 matches this season · USTA never publishes this number
1%
down to 3.5
99%
stay 4.0
0%
up to 4.5

A 4.0 runs from 3.51 to 4.00. This rating sits in the middle of the band, and every match moves it.

Our estimate, not a USTA figure — scale measured at this point of 2023 on 2160 players. Graded publicly in December when USTA publishes year-end ratings. It moves when you play, and occasionally when we improve the model.

Where you rank
Boise · 4.0
42 of 59
ID · 4.0
89 of 123

Tammie is ranked among players at the same level in the same place, by our estimated dynamic rating — not the published level, which is the same for everyone in the band. Groups smaller than five are not ranked, because a placing out of two is noise dressed as standing.

Over timerating by season, and how you rank
Rating by season

Tammie has been a steady 4.0 across all 7 seasons on record.

3.54.02019202020212022202320242026

The line is our estimate; the horizontal lines are level boundaries, so crossing one is a bump. Hollow points are years we inferred from the level played the following season, because USTA publishes a current rating but no history. The smaller, faded points — 2024 — rest on fewer than 5 matches, where the estimate is mostly the level the player was entered at rather than anything they did on court. Read the shape, not the value.

How you rank at your level
At 4.0, Tammie has gone from the 91st to the 66th percentile of players at that level, 2019 to 2021.

Percentile compares the same level in the same season, by share of games won. Mixed is shown for context — USTA rules exclude it from your adult rating unless mixed is all you play.

By level5 levels played
4.0
70.6%
24W–10L · 57.3% of games
4.5
77.8%
7W–2L · 57.6% of games
8.0
43.8%
7W–9L · 48.4% of games
8.0mixed
33.3%
4W–8L · 47.7% of games
8.5mixed
63.6%
7W–4L · 54.2% of games

Games won matters more than matches won — NTRP adjusts on margins.

Match history91 matches
W
Wendy Elison / Nicole Osbornchamps
2026-08-01 · #3 Doubles · with Anne Marie Carlisle
expectation pending — we're still fetching an opponent's record
6-3, 6-1
W
Dolly Gonzales / Wendy Elisonchamps
2026-07-31 · #1 Doubles · with Debbie Merritt
expectation pending — we're still fetching an opponent's record
6-3, 6-1
L
2026-06-25 · #2 Doubles · 8.0 · with Lisa Hilde
0.018below expectation — took 14% of games against 32% expected
6-1, 6-1
L
Michelle Meyers / Cindy Duncan
2026-06-11 · #2 Doubles · 8.0 · with Valerie Roberts
expectation pending — we're still fetching an opponent's record
7-6, 2-6, 1-0
W
2026-06-02 · #3 Doubles · 8.0 · with Valerie Roberts
expectation pending — we're still fetching an opponent's record
6-3, 2-6, 1-0
L
Jacqueline Gunn / Christine Elwer
2026-05-28 · #3 Doubles · 8.0 · with Lisa Hilde
expectation pending — we're still fetching an opponent's record
6-0, 6-1
L
2026-04-16 · #2 Doubles · 4.0 · with Lisa Hilde
0.053below expectation — took 20% of games against 48% expected
6-2, 6-1
W
2026-04-14 · #1 Doubles · 4.0 · with Kathy Scribner
+0.037better than expected — took 80% of games against 58% expected
6-2, 6-1
L
Kristie Thompson / Tory Goltry
2026-04-02 · #1 Doubles · 4.0 · with Kathy Scribner
expectation pending — we're still fetching an opponent's record
6-7, 7-6, 1-0
L
Kathy Adamson / Lisa Trujillo-Dunn
2026-03-31 · #2 Doubles · 4.0 · with Valerie Roberts
expectation pending — we're still fetching an opponent's record
7-5, 6-4
W
Stephen Sowinski / Vicki McBridemixed
2025-09-11 · #3 Doubles · 8.5 · with Ken Coffey
mixed — doesn't count toward your NTRP rating
6-3, 3-6, 1-0
W
2025-09-09 · #3 Doubles · 8.5 · with Ken Coffey
mixed — doesn't count toward your NTRP rating
6-3, 3-6, 1-0
What an account addsprivate to you

Signing in lets you point an account at your own record and keep things alongside it: notes on individual matches, your racquet and string setup, restring reminders, friendly matches that never reach TennisLink, and a diary of what you changed and what happened after.

None of it is visible to anyone else. Not to other players, not on your public page, not in search. Every private table is scoped to your account at the database level, so it is enforced rather than promised. The public page you are looking at is built from USTA match results and nothing else.

Not affiliated with or endorsed by the USTA. Rating shown is the published USTA year-end figure; match data is from USTA TennisLink.