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Stefko Kostadinov

LYNNWOOD, WA
3.5C year-end 2025
139 matches · 77W–62L · seasons 2019–2025
Where Stefko sits
65
2.5
683
3.0
1159
3.5
856
4.0
395
4.5
67
5.0

Stefko is one of 1159 men at 3.5 in this cohort of 3225. Levels at or below 3.5 account for 59% of them. Shown for men only: NTRP is a gender-specific standard, so a pooled curve would compare against the wrong bar.

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

Stefko has played at 3.0, 3.5 across 6 seasons — 1 move up and 0 down.

2.53.03.5201920212022202320242025

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, Stefko has gone from the 42nd to the 26th percentile of players at that level, 2022 to 2025.

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
3.0
62.2%
23W–14L · 58.2% of games
3.5
44%
11W–14L · 50.8% of games
6.0
72.7%
8W–3L · 58.5% of games
7.0
27.3%
3W–8L · 41.9% of games
6.0mixed
55.2%
16W–13L · 52.4% of games

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

Match history139 matches
L
2025-03-15 · #3 Doubles · 3.5 · with Miroslav Doytchev
−0.039below expectation — took 38% of games against 56% expected
7-5, 6-3
W
N/A
2025-03-09 · #3 Doubles · 3.5 · with Atul Agrawal
+0.003better than expected — took 100% of games against 82% expected
6-0, 6-0
L
2025-03-01 · #3 Doubles · 3.5 · with Miroslav Doytchev
−0.027below expectation — took 41% of games against 53% expected
7-6, 6-3
L
2025-02-08 · #3 Doubles · 3.5 · with Miroslav Doytchev
−0.027below expectation — took 32% of games against 46% expected
7-6, 6-0
L
2025-01-19 · #3 Doubles · 3.5 · with Miroslav Doytchev
−0.023below expectation — took 48% of games against 57% expected
7-6, 4-5, 1-0
L
Mark de Vere White / John Ferry
2025-01-12 · #1 Doubles · 3.5 · with Petrus Wong
−0.024below expectation — took 29% of games against 43% expected
6-2, 6-3
L
Cameron Buck / John Digenan
2024-11-16 · #3 Doubles · 7.0 · with Rodney Rowen
+0.014about as expected — took 37% of games against 35% expected
6-4, 6-3
L
2024-10-25 · #2 Doubles · 7.0 · with Kenn Wildes
−0.063below expectation — took 14% of games against 48% expected
6-0, 6-2
W
Eric Anderson / Matt Uyttendaele
2024-10-19 · #2 Doubles · 7.0 · with Mike Rayburn
+0.052better than expected — took 50% of games against 34% expected
2-6, 6-3, 1-0
L
David Taft / Michael Donnelly
2024-10-13 · #1 Doubles · 7.0 · with Kenn Wildes
−0.036below expectation — took 33% of games against 52% expected
6-4, 6-2
L
Marshall Longtin / Colin Williams
2024-09-07 · #1 Doubles · 7.0 · with Rick Olson
+0.008about as expected — took 48% of games against 44% expected
6-4, 4-6, 1-0
L
2024-04-05 · #3 Doubles · 3.5 · with Miroslav Doytchev
−0.006about as expected — took 47% of games against 49% expected
2-6, 6-2, 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.