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April Hartstein

VALENCIA, CA
4.5C year-end 2025
i
Computer — generated by the USTA algorithm from match play
366 matches · 227W–139L · seasons 2019–2026

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Match history366 matches
W
2026-08-30 · LA - Tri Hards · #1 Doubles · 4.5 · with Andrea Kretzmann
expectation pending — we’re still fetching an opponent’s record
6-2, 6-2
W
2026-08-22 · LA - Tri Hards · #2 Doubles · 4.5 · with Crystal Juan
expectation pending — we’re still fetching an opponent’s record
6-2, 6-1
W
Tiffany Foster / Christine Hale
2026-08-08 · #3 Doubles · with Christine Chen championship
expectation pending — we’re still fetching an opponent’s record
6-4, 6-3
W
Vivian Lee / Joy Zheng
2026-08-07 · #1 Doubles · with Julie Flygare championship
expectation pending — we’re still fetching an opponent’s record
1-6, 6-2, 1-0
W
2026-08-02 · LA - Tri Hards · #1 Doubles · 4.5 · with Ariella Gilmore
expectation pending — we’re still fetching an opponent’s record
6-3, 6-4
W
2026-07-26 · Wig Snatchers · #1 Doubles · 4.5 · with Marguerite Brook
expectation pending — we’re still fetching an opponent’s record
6-3, 3-6, 1-0
W
2026-07-19 · LA - Tri Hards · #1 Doubles · 4.5 · with Andrea Kretzmann
expectation pending — we’re still fetching an opponent’s record
6-1, 6-3
W
2026-07-18 · Supreme Courters High Tri/Heum/CSUN · #1 Doubles · 4.5 · with Erica Smalley
expectation pending — we’re still fetching an opponent’s record
6-3, 6-3
W
N/A
2026-07-12 · Mixed Troubles · #3 Doubles · 9.0 · with David Castillo mixed
doesn’t count toward your NTRP rating
6-0, 6-0
W
2026-07-12 · Wig Snatchers · #1 Doubles · 4.5 · with Yuri Nichelson
expectation pending — we’re still fetching an opponent’s record
6-4, 6-3
L
2026-06-20 · SFV LLW Fuzz Off/Belcher/Balboa · #1 Doubles · 4.5 · with Julie Flygare
expectation pending — we’re still fetching an opponent’s record
5-7, 6-1, 0-1
W
2026-06-14 · SFV LLW Fuzz Off/Belcher/Balboa · #3 Doubles · 4.5 · with Amy Thompson
expectation pending — we’re still fetching an opponent’s record
6-1, 6-3
Where you rank locallyagainst everyone at your level
Teams88 teams · 2021–2026
Over timerating by season, and how you rank
By level11 levels played
0.0
55.6%
5W–4L · 48.6% of games
4.0
79.4%
27W–7L · 63% of games
4.5
65.2%
103W–55L · 57.1% of games
5.0
31.8%
7W–15L · 44.2% of games
8.0
75%
3W–1L · 68.1% of games
9.0
48.4%
15W–16L · 52.4% of games
0.0mixed
66.7%
8W–4L · 62.7% of games
4.0mixed
1W–0L
not enough matches yet
4.5mixed
85.7%
6W–1L · 57.6% of games
8.0mixed
2W–1L
not enough matches yet
9.0mixed
47.4%
9W–10L · 53.7% of games

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

By lineusually #1 Doubles, 41% of the time
#1 Doubles
41%
150 matches
#2 Doubles
26%
95 matches
#3 Doubles
18%
64 matches
#1 Singles
12%
42 matches
#2 Singles
2%
7 matches
#1 Mixed Doubles
1%
4 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.

What matters isn’t how well you play when you’re playing well. What matters is how well you play when you’re playing badly.
Martina Navratilova