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Jack Griffin

Lake Oswego, OR
4.5C year-end 2025
48 matches · 27W–21L · seasons 20192026
Bump probability
4.04.55.0lowhigh

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.

4.27
estimated dynamic rating
Where the rating sits now, on 8 matches this season · USTA never publishes this number
0%
down to 4.0
100%
stay 4.5
0%
up to 5.0

A 4.5 runs from 4.01 to 4.50. 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
Lake Oswego · 4.5
2 of 18
OR · 4.5
24 of 226

Jack 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

Jack has been a steady 4.5 across all 2 seasons on record.

4.04.520192021

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. The smaller, faded points — 2021 — rest on fewer than 5 matches, where the estimate is mostly the level the player was entered at rather than anything they did on court. Read the shape, not the value.

How you rank at your level
At 9.0, Jack has gone from the 86th to the 52nd percentile of players at that level, 2019 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 level3 levels played
4.5
55.6%
5W–4L · 51.2% of games
8.0
1W–2L
not enough matches yet
9.0
53.6%
15W–13L · 51.6% of games

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

Match history48 matches
L
2026-05-15 · #1 Doubles · 8.0 · with Jim DeWeese
0.048below expectation — took 53% of games against 67% expected
6-4, 2-6, 1-0
W
John Williams / Bill Henderson
2026-05-12 · #1 Doubles · 8.0 · with Jim DeWeese
+0.030better than expected — took 92% of games against 68% expected
6-1, 6-0
L
2026-03-10 · #1 Doubles · 8.0 · with Jim DeWeese
0.019below expectation — took 46% of games against 54% expected
6-7, 7-5, 1-0
L
David Reynoldson / Christopher Haddon
2025-11-23 · #1 Doubles · 9.0 · with Mike McNairy
0.033below expectation — took 38% of games against 54% expected
7-5, 6-3
W
2025-11-09 · #1 Doubles · 9.0 · with Mike McNairy
+0.056better than expected — took 71% of games against 43% expected
6-2, 6-3
L
David Reynoldson / Bo Johnson
2025-10-25 · #1 Doubles · 9.0 · with Renato Bernasconi Zuccari
0.038below expectation — took 33% of games against 52% expected
6-2, 6-4
W
Todd Siegel / David Reynoldson
2025-09-13 · #2 Doubles · 9.0 · with Kirt Eftekhar
+0.024better than expected — took 56% of games against 46% expected
6-1, 2-6, 1-0
W
2025-09-06 · #3 Doubles · 9.0 · with Steve Bolstad
+0.053better than expected — took 65% of games against 41% expected
6-2, 7-5
L
2024-12-06 · #3 Doubles · 9.0 · with Joerg Droste
not counted — an opponent has no rating on record
7-6, 5-7, 1-0
L
2024-11-23 · #2 Doubles · 9.0 · with Leonard Wofford
not counted — an opponent has no rating on record
6-3, 3-6, 1-0
W
2024-10-12 · #1 Doubles · 9.0 · with Paul Wulf
not counted — an opponent has no rating on record
6-3, 6-3
L
2024-09-29 · #3 Doubles · 9.0 · with Steve Eggerts
not counted — an opponent has no rating on record
6-1, 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.