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Stephanie Guffin

Charlotte, NC
3.5C year-end 2025
52 matches · 35W–17L · seasons 2019–2026
Bump probability
3.03.54.0lowhigh
Where this rating stands today. Taller means more likely.
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The dashed lines are the edges of your band. The three shaded areas are exactly the three percentages below — area here is the chance of one outcome for you, not a count of players.
3.47
estimated dynamic rating
Where the rating sits now, on 5 matches this season · USTA never publishes this number
0%
down to 3.0
65%
stay 3.5
35%
up to 4.0
Projected to December: 0% down · 91% stay · 9% up, from a year-end estimate of 3.39. Lower than today’s 3.47 because form regresses — players this far into their band partway through a season have historically finished nearer the middle of it. Keep playing at this level and the numbers above are the ones that hold.

A 3.5 runs from 3.01 to 3.50. This rating sits in the top of the band, and every match moves it.

Our estimate, not a USTA figure.
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scale measured at this point of 2023 on 2160 players. It moves when you play, and occasionally when we improve the model. USTA publishes year-end ratings in December, which is when this gets graded against what actually happened.
Where you rank
Charlotte · 3.5
76 of 176
NC · 3.5
139 of 293
By our estimated rating, not the published level.
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Stephanie is ranked against players at the same level in the same place. The published level is identical for everyone in a band, so it cannot separate them — our estimate can. Groups smaller than five are not ranked at all, because a placing out of two is noise dressed as standing.
Over timerating by season, and how you rank
Rating by season

Stephanie has played at 3.5, 4.0 across 5 seasons — 1 move up and 1 down.

3.03.54.020192022202420252026

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 4.0, Stephanie has gone from the 39th to the 44th percentile of players at that level, 2022 to 2024.

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
75%
12W–4L · 62.6% of games
4.0
46.7%
7W–8L · 53.4% of games
4.5
1W–2L
not enough matches yet
6.5
2W–0L
not enough matches yet
7.5
100%
7W–0L · 70.5% of games
8.5
1W–0L
not enough matches yet

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

Match history52 matches
W
Celeste Horton / Lizette Conover
2026-08-03 · #2 Doubles · 7.5 · with Brooke Leonnig
expectation pending — we're still fetching an opponent's record
6-2, 6-3
W
Liesl Graf / Lauren Sandberg
2026-04-15 · #1 Doubles · 3.5 · with Brooke Leonnig
expectation pending — we're still fetching an opponent's record
7-5, 6-1
L
Julia Dillon / Chris Kennedy
2026-04-08 · #2 Doubles · 3.5 · with Bridget Happney
expectation pending — we're still fetching an opponent's record
6-4, 6-1
L
Anait Balasanyan / Kirsten Rodgers
2026-03-18 · #3 Doubles · 3.5 · with Allyson Dunlap
expectation pending — we're still fetching an opponent's record
6-4, 7-5
L
Cindy Rhoten / Stephanie Rock
2026-03-11 · #1 Doubles · 3.5 · with Brooke Leonnig
expectation pending — we're still fetching an opponent's record
6-7, 6-3, 1-0
L
2025-07-23 · #2 Doubles · 4.5 · with Renee Preece
+0.007better than expected — took 57% of games against 51% expected
1-6, 7-6, 1-0
L
Amanda Jarman / Amy Erwin
2025-07-07 · #2 Doubles · 4.5 · with Ivy Tedrick
expectation pending — we're still fetching an opponent's record
6-2, 6-2
W
2025-07-02 · #2 Doubles · 4.5 · with Lisa Stewart
expectation pending — we're still fetching an opponent's record
7-5, 0-6, 1-0
W
N/A
2025-04-25 · #1 Singles · 4.0
expectation pending — we're still fetching an opponent's record
6-0, 6-0
W
2025-04-04 · #1 Singles · 4.0
−0.052below expectation — took 55% of games against 72% expected
6-3, 5-7, 1-0
W
2024-09-02 · #3 Doubles · 8.5 · with Laura Williams
expectation pending — we're still fetching an opponent's record
6-4, 6-2
W
Amy Schroeder / Jana Joneschamps
2024-08-16 · #1 Doubles · with Lisa Anderson
expectation pending — we're still fetching an opponent's record
5-7, 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.