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Brian Kosobucki

Verona, WI
4.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
330 matches · 216W–114L · seasons 2019–2026

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Match history330 matches
W
Michael Walsh / Kevin Johnson
2026-09-08 · WI Combo 8.5M MALT Kosobucki · #3 Doubles · 8.5 · with Elliott Appel
doesn’t count toward your NTRP rating
6-1, 6-2
W
expectation pending — we’re still fetching an opponent’s record
7-5, 6-2
L
2026-08-17 · WI Combo 9.5M MALT Kosobucki · #3 Doubles · 9.5 · with Jacob Rodgers
doesn’t count toward your NTRP rating
6-3, 3-6, 0-1
L
2026-08-16 · WI Mid Tri Mixed Doubles MALT Kosobucki · #1 Doubles · with Samantha Saetang
expectation pending — we’re still fetching an opponent’s record
6-3, 3-6, 0-1
L
2026-08-09 · #3 Doubles · with Ian Pray championship
expectation pending — we’re still fetching an opponent’s record
5-7, 6-4, 0-1
W
Nathan Jung / Jacob Chapman
2026-08-04 · WI Combo 8.5M MALT Kosobucki · #1 Doubles · 8.5 · with David Stluka
doesn’t count toward your NTRP rating
7-5, 6-0
W
2026-08-02 · WI Mid Tri Mixed Doubles MALT Kosobucki · #1 Doubles · 0.0 · with Michelle Tallentyre
expectation pending — we’re still fetching an opponent’s record
6-3, 6-0
W
N/A
2026-07-26 · WI Mixed 18 & Over 9.0 MALT Kosobucki · #3 Doubles · 9.0 · with Amberlee Baugus mixed
doesn’t count toward your NTRP rating
6-0, 6-0
W
N/A
2026-07-25 · WI Mixed 18 & Over 9.0 MALT Kosobucki · #3 Doubles · 9.0 · with Samantha Finnegan mixed
doesn’t count toward your NTRP rating
6-0, 6-0
W
2026-07-18 · WI Mixed 18 & Over 9.0 MALT Kosobucki · #2 Doubles · 9.0 · with Amberlee Baugus mixed
doesn’t count toward your NTRP rating
6-3, 6-4
W
2026-07-14 · WI Adult 18&O 4.5M MALT Kosobucki · #3 Doubles · 4.5 · with Ian Pray
expectation pending — we’re still fetching an opponent’s record
7-5, 7-5
W
2026-07-02 · WI Adult 18&O 5.0M MALT Kosobucki · #1 Doubles · 5.0 · with Xavier Sanga
expectation pending — we’re still fetching an opponent’s record
7-5, 3-6, 1-0
Where you rank locallyagainst everyone at your level
Teams52 teams · 2021–2026
Over timerating by season, and how you rank
By level12 levels played
0.0
1W–0L
not enough matches yet
4.0
83.3%
15W–3L · 68.2% of games
4.5
59.6%
53W–36L · 56.8% of games
5.0
53.7%
22W–19L · 53.4% of games
7.5
70.6%
12W–5L · 62.3% of games
8.5
80.4%
41W–10L · 61.4% of games
9.5
66.7%
16W–8L · 60.8% of games
7.0mixed
100%
6W–0L · 76.6% of games
7.5mixed
2W–0L
not enough matches yet
8.0mixed
69.6%
16W–7L · 59% of games
8.5mixed
1W–2L
not enough matches yet
9.0mixed
41.7%
5W–7L · 52% of games

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

By lineusually #1 Doubles, 40% of the time
#1 Doubles
40%
133 matches
#2 Doubles
33%
108 matches
#3 Doubles
21%
68 matches
#1 Singles
4%
12 matches
#2 Singles
3%
9 matches

How often, across every team and every match we hold — including ones that do not count toward a rating. Advanced stats has a court-position table too, and it answers a different question: how well you do there, over matches that count. A team’s own page shows how that one team uses you.

Not affiliated with or endorsed by the USTA. Ratings labelled as published are USTA year-end figures; anything we describe as an estimate is ours, not USTA’s. Match data is from USTA TennisLink.

It’s one of the reasons why I like tennis so much. Because you have to figure it out on your own.
Roger Federer