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Muff Heffernan

Clyde Hill, WA
3.5C year-end 2025
41 matches · 22W–19L · seasons 20232026
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.

3.30
estimated dynamic rating
Where the rating sits now, on 16 matches this season · USTA never publishes this number
0%
down to 3.0
99%
stay 3.5
1%
up to 4.0

A 3.5 runs from 3.01 to 3.50. This rating sits in the upper half 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
WA · 3.5
588 of 1364

Muff 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

Muff has been 3.5 for all 4 seasons on record, but moved a long way inside it — from the bottom of the band to the middle.

3.03.52023202420252026

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, Muff has gone from the 43rd to the 64th percentile of players at that level, 2023 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 level2 levels played
3.5
47.1%
16W–18L · 48.2% of games
7.0
83.3%
5W–1L · 56.3% of games

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

Match history41 matches
W
2026-07-22 · #1 Doubles · 3.5 · with Marcia Hood
+0.017better than expected — took 48% of games against 43% expected
3-6, 7-6, 1-0
L
2026-07-21 · #1 Doubles · 3.5 · with Marcia Hood
+0.008about as expected — took 45% of games against 42% expected
6-3, 4-6, 1-0
L
2026-07-17 · #1 Doubles · 3.5 · with Lindsey Holt
0.007about as expected — took 47% of games against 50% expected
6-2, 2-6, 1-0
W
Jennifer Harris / Alison Scott
2026-07-09 · #1 Doubles · 3.5 · with Lindsey Holt
+0.023better than expected — took 62% of games against 50% expected
7-5, 6-3
W
2026-06-04 · #1 Doubles · 3.5 · with Lindsey Holt
+0.021better than expected — took 62% of games against 51% expected
6-2, 7-6
W
2026-06-02 · #1 Doubles · 7.0 · with Ann Imus
+0.003about as expected — took 54% of games against 53% expected
6-7, 7-5, 1-0
W
Jennifer Andrews / Jodi Merrywell
2026-05-28 · #2 Doubles · 3.5 · with Marcia Hood
0.005about as expected — took 50% of games against 53% expected
6-3, 2-6, 1-0
W
2026-05-27 · #1 Doubles · 7.0 · with Ann Imus
+0.016better than expected — took 65% of games against 56% expected
7-5, 6-2
W
Susan Sodorff / Lori Powers
2026-04-29 · #1 Doubles · 7.0 · with Ann Imus
+0.016better than expected — took 63% of games against 54% expected
6-3, 6-4
W
2026-04-23 · #1 Doubles · 3.5 · with Lindsey Holt
+0.044better than expected — took 80% of games against 56% expected
6-1, 6-2
W
2026-04-09 · #1 Doubles · 3.5 · with Lindsey Holt
0.017below expectation — took 47% of games against 56% expected
2-6, 6-4, 1-0
L
Ellen Murphy / Sarah Yoon
2026-04-03 · #1 Doubles · 3.5 · with Joanne Hasbrook
+0.026better than expected — took 47% of games against 37% expected
3-6, 6-3, 1-0
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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.