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Joyce Koker

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Racine, WI
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
170 matches · 112W–58L · seasons 2022–2026
Match history170 matches
W
2026-10-25 · WI Mid-Tri GML Heyer Park Larkin · #1 Doubles · with Amy Meyer
loading the estimate
6-4, 7-5
W
2026-10-04 · WI Mid-Tri GML Heyer Park Larkin · #2 Doubles · with Kristin Dodds
loading the estimate
6-1, 7-5
W
2026-10-01 · WI Combo 8.5W GML River Glen Elite Ellegard · #3 Doubles · 8.5 · with Hayley Clope
doesn’t count toward your NTRP rating
6-4, 6-3
L
2026-09-27 · WI Adult 55&O 8.0W GML Lake Country WAC Toboyek · #2 Doubles · 8.0 · with Christy Janikowski championship
loading the estimate
3-6, 2-6
W
2026-09-26 · WI Adult 55&O 8.0W GML Lake Country WAC Toboyek · #1 Doubles · 8.0 · with Christy Janikowski championship
loading the estimate
5-7, 6-1, 1-0
L
2026-09-26 · WI Adult 55&O 8.0W GML Lake Country WAC Toboyek · #1 Doubles · 8.0 · with Christy Janikowski championship
loading the estimate
3-6, 3-6
L
2026-09-25 · WI Adult 55&O 8.0W GML Lake Country WAC Toboyek · #3 Doubles · 8.0 · with Christy Janikowski championship
loading the estimate
0-6, 2-6
L
2026-09-21 · WI Combo 7.5W (Day) GML FLAC Winchell · #2 Doubles · 7.5 · with Karen Papcke
doesn’t count toward your NTRP rating
5-7, 6-2, 0-1
L
2026-09-19 · WI Adult 55&O 7.0W (Day) GML FLAC Schmidt · #1 Doubles · 7.0 · with Jill Polkow championship
loading the estimate
6-3, 2-6, 0-1
W
2026-09-14 · WI Combo 7.5W (Day) GML FLAC Winchell · #1 Doubles · 7.5 · with Kathy Kort
doesn’t count toward your NTRP rating
6-7, 6-3, 1-0
W
2026-08-24 · WI Combo 7.5W (Day) GML FLAC Winchell · #2 Doubles · 7.5 · with Susan Schmidt
doesn’t count toward your NTRP rating
7-6, 6-4
L
2026-08-23 · WI Mid-Tri GML Heyer Park Larkin · #2 Doubles · with Amy Meyer
loading the estimate
4-6, 5-7
Where you rank locallyagainst everyone at your level
Teams29 teams · 2022–2026
Over timerating by season, and how you rank
By level6 levels played
3.5
85.7%
24W–4L · 63.4% of games
4.0
52%
26W–24L · 54% of games
7.0
86.7%
26W–4L · 67.8% of games
7.5
58.1%
18W–13L · 53.7% of games
8.0
56.2%
9W–7L · 53.9% of games
8.5
2W–0L
not enough matches yet

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

By lineusually #1 Doubles, 49% of the time
#1 Doubles
49%
83 matches
#2 Doubles
28%
47 matches
#3 Doubles
22%
37 matches
#2 Singles
1%
2 matches
#1 Singles
1%
1 match

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.

The moment of victory is much too short to live for that and nothing else.
Martina Navratilova