Search

Mark Sinkey

Mercer Island, WA
3.5C year-end 2025
47 matches · 29W–18L · seasons 20192026
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.

3.29
estimated dynamic rating
Where the rating sits now, on 8 matches this season · USTA never publishes this number
0%
down to 3.0
100%
stay 3.5
0%
up to 4.0

A 3.5 runs from 3.01 to 3.50. 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
Mercer Island · 3.5
49 of 90
WA · 3.5
648 of 1460

Mark 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

Mark has played at 4.0, 3.5 across 5 seasons — 0 moves up and 1 down.

3.03.54.020192020202220232025

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 — 2019, 2020 — 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 7.0, Mark has gone from the 78th to the 89th percentile of players at that level, 2025 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 level4 levels played
3.5
50%
5W–5L · 53.9% of games
4.0
0W–2L
not enough matches yet
7.0
76.2%
16W–5L · 61.3% of games
7.0mixed
1W–2L
not enough matches yet

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

Match history47 matches
W
2026-06-18 · #2 Doubles · with William Chapman
0.006about as expected — took 47% of games against 52% expected
2-6, 6-4, 1-0
L
2026-06-16 · #2 Doubles · with James Sayre
0.016below expectation — took 38% of games against 46% expected
6-2, 7-6
W
2026-06-03 · #2 Doubles · 7.0 · with James Sayre
+0.001about as expected — took 67% of games against 62% expected
6-3, 6-3
W
2026-05-25 · #2 Doubles · 7.0 · with James Sayre
+0.012better than expected — took 80% of games against 66% expected
6-3, 6-0
W
Jim Muenz / Steve Carl
2026-05-13 · #3 Doubles · 7.0 · with James Sayre
+0.025better than expected — took 92% of games against 69% expected
6-0, 6-1
W
2026-05-06 · #3 Doubles · 7.0 · with James Sayre
0.015below expectation — took 56% of games against 61% expected
7-5, 7-6
W
2026-04-30 · #3 Doubles · 7.0 · with James Sayre
0.015about as expected — took 71% of games against 70% expected
6-2, 6-3
L
2025-09-13 · #1 Doubles · with Alan Mitchel
0.006about as expected — took 37% of games against 42% expected
6-3, 6-4
W
Steve Gundersen / Mark Taylorchamps
2025-09-12 · #2 Doubles · with Charles Naden
+0.059better than expected — took 62% of games against 37% expected
6-3, 7-5
W
Tim Reid / Kenneth Baumgartnerchamps
2025-09-11 · #1 Doubles · with Alan Mitchel
0.005about as expected — took 63% of games against 62% expected
6-3, 6-4
L
2025-09-05 · #1 Doubles · 7.0 · with Jeff O'Mara
0.030below expectation — took 32% of games against 48% expected
7-6, 6-0
W
Steven Rogers / Terry Lundeen
2025-06-11 · #2 Doubles · 7.0 · with Charles Naden
+0.018better than expected — took 63% of games against 54% expected
6-3, 6-4
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.