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Dayna Porter

Vancouver, WA
3.5C year-end 2025
155 matches · 81W–74L · seasons 20202026
Bump probability
3.03.54.0lowhigh

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.

3.23
estimated dynamic rating
Where the rating sits now, on 18 matches this season · USTA never publishes this number
0%
down to 3.0
100%
stay 3.5
0%
up to 4.0

A 3.5 runs from 3.01 to 3.50. 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
Vancouver · 3.5
25 of 39
WA · 3.5
783 of 1209

Dayna 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.

Teams59 teams · 2001–2027
Over timerating by season, and how you rank
Rating by season

Dayna has been a steady 3.5 across all 7 seasons on record.

3.03.52020202120222023202420252026

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.

How you rank at your level
At 3.5, Dayna has gone from the 66th to the 79th percentile of players at that level, 2020 to 2026.

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 level6 levels played
3.5
52.4%
33W–30L · 52.7% of games
4.0
12.5%
1W–7L · 35.4% of games
7.0
76.9%
10W–3L · 59% of games
8.0
57.1%
4W–3L · 43.5% of games
7.0mixed
54.9%
28W–23L · 51.4% of games
8.0mixed
50%
4W–4L · 48.3% of games

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

Match history155 matches
W
2026-04-25 · VTC-Mills/Porter · #3 Doubles · 7.0 · with Pete Kovalenko
+0.000better than expected — took 72% of games against 64% expected
6-0, 7-5
L
2026-03-29 · VTC-Griffith · #2 Doubles · 3.5 · with Lynne Nieda
0.025below expectation — took 43% of games against 54% expected
6-4, 7-6
W
2026-03-21 · VTC-Griffith · #2 Doubles · 3.5 · with Lynne Nieda
+0.040better than expected — took 80% of games against 57% expected
6-2, 6-1
W
2026-03-20 · VTC-Mills/Porter · #1 Doubles · 7.0 · with Murray Jansen
+0.000better than expected — took 71% of games against 58% expected
6-1, 6-4
W
2026-03-14 · VTC-Mills/Porter · #3 Doubles · 7.0 · with Murray Jansen
+0.000better than expected — took 67% of games against 52% expected
6-2, 6-4
W
2026-02-22 · VTC-Griffith · #3 Doubles · 3.5 · with Rebecca Griffith
0.002about as expected — took 58% of games against 58% expected
7-5, 7-5
W
Shelly Griffith / Renea Johnson
2026-02-13 · VTC-Griffith · #2 Doubles · 3.5 · with Julie Gorecki
+0.008better than expected — took 65% of games against 59% expected
6-2, 7-5
L
2026-01-31 · VTC-Griffith · #2 Doubles · 3.5 · with Julie Gorecki
+0.004about as expected — took 50% of games against 47% expected
1-6, 6-2, 1-0
L
2025-11-15 · VTC-Pluymers/Pickering · #2 Doubles · 8.0 · with Lorna Goth
0.015below expectation — took 33% of games against 43% expected
6-2, 6-4
W
2025-11-08 · VTC-Porter/Griffith · #3 Doubles · 7.0 · with Matthew Thompson
+0.000below expectation — took 59% of games against 69% expected
7-6, 6-3
W
2025-11-02 · VTC-Porter/Griffith · #2 Doubles · 7.0 · with Kyle Williams
+0.000about as expected — took 62% of games against 58% expected
7-5, 6-3
W
2025-11-01 · VTC-Mills · #3 Doubles · 7.0 · with Lynne Nieda
0.058below expectation — took 50% of games against 71% expected
6-4, 3-6, 1-0
What an account addsprivate to you

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