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Jeffrey Krum

Portland, OR
4.0C year-end 2025
58 matches · 28W–30L · 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.

3.69
estimated dynamic rating
Where the rating sits now, on 4 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 lower 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
Portland · 4.0
137 of 266
OR · 4.0
254 of 498

Jeffrey 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
How you rank at your level
At 8.0, Jeffrey has gone from the 66th to the 36th percentile of players at that level, 2021 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 level2 levels played
8.0
46.2%
18W–21L · 50.1% of games
8.0mixed
60%
3W–2L · 56.9% of games

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

Match history58 matches
L
Tom Lonergan / Alex Pulaski
2026-05-15 · #3 Doubles · 8.0 · with Bill Henderson
0.032below expectation — took 41% of games against 56% expected
6-1, 3-6, 1-0
L
2026-04-23 · #3 Doubles · 8.0 · with Jonathan Barg
0.015about as expected — took 52% of games against 56% expected
7-6, 3-6, 1-0
L
2026-04-03 · #2 Doubles · 8.0 · with Brian Posewitz
0.086below expectation — took 25% of games against 63% expected
6-1, 6-3
W
2026-03-26 · #3 Doubles · 8.0 · with Bill Henderson
+0.069better than expected — took 80% of games against 45% expected
6-1, 6-2
W
2025-09-13 · #3 Doubles · with Donald Brenneman
not counted — an opponent has no rating on record
6-3, 4-6, 1-0
L
Ed Singler / William Kellychamps
2025-09-12 · #3 Doubles · with William Campbell
not counted — an opponent has no rating on record
6-2, 3-6, 1-0
W
Jeff Brantner / Wally Morrisonchamps
2025-09-11 · #3 Doubles · with Donald Brenneman
not counted — an opponent has no rating on record
7-6, 1-6, 1-0
L
2025-04-18 · #2 Doubles · 8.0 · with Donald Brenneman
not counted — an opponent has no rating on record
6-1, 7-5
W
2025-04-10 · #2 Doubles · 8.0 · with Donald Brenneman
not counted — an opponent has no rating on record
7-6, 6-2
W
Bill Lowblad / John Leach
2025-04-03 · #2 Doubles · 8.0 · with Peter McKittrick
not counted — an opponent has no rating on record
7-5, 7-5
W
Alan Kaplan / Arthur Edwards
2025-03-20 · #3 Doubles · 8.0 · with Donald Brenneman
not counted — an opponent has no rating on record
6-3, 6-2
L
2025-03-13 · #3 Doubles · 8.0 · with Donald Brenneman
not counted — an opponent has no rating on record
6-0, 6-3
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.