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Kirk Porritt

Boise, ID
4.0C year-end 2025
345 matches · 213W–132L · 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.

3.95
estimated dynamic rating
Where the rating sits now, on 33 matches this season · USTA never publishes this number
0%
down to 3.5
73%
stay 4.0
27%
up to 4.5
Projected to December: 0% down · 93% stay · 7% up, from a year-end estimate of 3.88. Lower than today’s 3.95 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 4.0 runs from 3.51 to 4.00. This rating sits in the top 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
Boise · 4.0
6 of 16
ID · 4.0
16 of 38

Kirk 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

Kirk has been 4.0 for all 8 seasons on record, but moved a long way inside it — from the middle of the band to the top.

3.54.020192020202120222023202420252026

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, Kirk has gone from the 67th to the 83rd 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 level8 levels played
4.0
75.9%
85W–27L · 60.7% of games
4.5
35%
7W–13L · 43.6% of games
5.0
66.7%
4W–2L · 47.7% of games
8.0
3W–0L
not enough matches yet
7.0mixed
61.1%
22W–14L · 55% of games
7.5mixed
70.8%
17W–7L · 54.6% of games
8.0mixed
63.2%
36W–21L · 55.4% of games
8.5mixed
46.2%
6W–7L · 46.6% of games

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

Match history345 matches
W
Chelsey Melby / Raymond Ottomixed
2026-07-22 · #2 Doubles · 8.0 · with Kathy Scribner
mixed — doesn't count toward your NTRP rating
4-6, 6-2, 1-0
W
David Brake / Thomas Gwinnmixedchamps
2026-07-18 · #3 Doubles · with Rick Roby
mixed — doesn't count toward your NTRP rating
6-1, 6-3
L
Ruby Graham / Luke Holdenmixedchamps
2026-07-11 · #1 Doubles · with Monica Hubbard
mixed — doesn't count toward your NTRP rating
7-6, 7-5
L
Natalie Romaniw / Naga Bhargav Paritalamixedchamps
2026-07-10 · #1 Doubles · with Monica Hubbard
mixed — doesn't count toward your NTRP rating
6-3, 6-3
W
Darwin Sloop / Julie Sloopmixed
2026-07-09 · #1 Doubles · 7.0 · with Gillian Donahey
mixed — doesn't count toward your NTRP rating
6-4, 3-6, 1-0
W
Jeff Huhn / Alaina Sayersmixed
2026-07-07 · #2 Doubles · 7.0 · with Morgan White
mixed — doesn't count toward your NTRP rating
4-6, 6-4, 1-0
W
Ashley Tribble / Dylan Lucasmixed
2026-07-06 · #3 Doubles · 8.0 · with Debbie Merritt
mixed — doesn't count toward your NTRP rating
6-2, 6-3
L
Scott Stewart / Stephen Heath
2026-06-24 · #2 Doubles · 4.0 · with Jarrett Rummel
expectation pending — we're still fetching an opponent's record
6-3, 6-4
L
Paul Hefner
2026-06-15 · #2 Singles · 4.0
expectation pending — we're still fetching an opponent's record
6-2, 7-5
W
Dan Holmes / Chadd Cripe
2026-06-10 · #1 Doubles · 4.0 · with Rick Roby
expectation pending — we're still fetching an opponent's record
6-0, 6-3
W
Todd Miller / Darwin Sloop
2026-06-08 · #3 Doubles · 4.0 · with Jarrett Rummel
expectation pending — we're still fetching an opponent's record
6-1, 6-3
W
Ryan Cook
2026-06-03 · #1 Singles · 4.0
expectation pending — we're still fetching an opponent's record
6-3, 6-1
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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.