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Jan Hartzfeld

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Marietta, GA
4.0C year-end 2025
i
Computer — generated by the USTA algorithm from match play
141 matches · 63W–78L · seasons 2018–2026

USTA moved this player up a level mid-season in 2020. A published rating does not change until the end of the year, so the level shown above can be behind what USTA has already decided.

Match history141 matches
L
2026-10-21 · Terrell Mill (Deborah Ransome)* · #3 Doubles · 4.0 · with Laura Marble
loading the estimate
1-6, 3-6
L
2026-10-14 · Terrell Mill (Deborah Ransome)* · #3 Doubles · 4.0 · with Deborah Ransome
loading the estimate
4-6, 2-6
W
2026-07-21 · Harrison TC (Karen Pline)* · #3 Doubles · 4.0 · with Deborah Ransome
loading the estimate
6-1, 6-1
W
2026-07-20 · Harrison TC (Karen Pline)* · #2 Doubles · 4.0 · with Maki Delaney
loading the estimate
6-2, 6-0
W
2026-07-12 · Sandy Springs RC (Mary Kimberl)* · #4 Doubles · 4.0 · with Libia Velasquez
loading the estimate
6-2, 6-3
L
2026-06-30 · Harrison TC (Karen Pline)* · #2 Doubles · 4.0 · with Deborah Ransome
loading the estimate
1-6, 2-6
W
2026-06-29 · Harrison TC (Karen Pline)* · #3 Doubles · 4.0 · with Nancy Swoish
loading the estimate
6-4, 6-4
W
2026-06-28 · Sandy Springs RC (Mary Kimberl)* · #2 Doubles · 4.0 · with Libia Velasquez
loading the estimate
6-4, 6-3
W
2026-06-23 · Harrison TC (Karen Pline)* · #2 Doubles · 4.0 · with Deborah Ransome
loading the estimate
7-5, 6-0
W
2026-06-22 · Harrison TC (Karen Pline)* · #4 Doubles · 4.0 · with Deborah Ransome
loading the estimate
6-2, 6-0
W
2026-06-21 · Sandy Springs RC (Mary Kimberl)* · #2 Doubles · 4.0 · with Joanne Deangelo
loading the estimate
6-4, 3-6, 6-3
L
2026-06-14 · Sandy Springs RC (Mary Kimberl)* · #1 Doubles · 4.0 · with Joanne Deangelo
loading the estimate
3-6, 6-7
Where you rank locallyagainst everyone at your level
Teams25 teams · 2019–2027
Harrison TC (Karen Pline)
USTA Atlanta Winter - 40 & Over Weekday Women - Low · 4.0 Low WW -No State Tourney (Check Eligibility) · 40+
2027
Harrison TC (Karen Pline)*
USTA Atlanta Winter - 40 & Over Weekday Women - Low · 4.0 Low WW -No State Tourney (Check Eligibility) · 40+
2027
Harrison TC (Karen Pline)*
USTA Atlanta Summer - 40 & Over Weekday Women - Low · 4.0 Low - Check Eligibility (No State Tourney) · 40+
2027
Sandy Springs RC (Mary Kimberl)
USTA Atlanta Winter - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) - Monica Murray · 18+
2027
Sandy Springs RC (Mary Kimberl)*
USTA Atlanta Summer - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) Monica Murray · 18+
2027
Sandy Springs RC (Mary Kimberl)*
USTA Atlanta Winter - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) - Monica Murray · 18+
2027
Sandy Springs TC Kimberl
USTA Atlanta Winter - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) - Monica Murray · 18+
2027
Terrell Mill (Deborah Ransome)*
USTA Atlanta Fall - Adult 55 & Over Women · 4.0 Women · 55+
2027
Camden Place (Patricia McClure)*
USTA Atlanta Summer - 40 & Over Weekday Women - Low · 4.0 Low - Check Eligibility (No State Tourney) · 40+
2026
Sandy Springs (Mary Kimberl)*
USTA Atlanta Winter - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) - Monica Murray · 18+
2026
Sandy Springs TC (Mary Kimberl)*
USTA Atlanta Summer - 18 & Over Business Women - Low · 4.0 Low (Check Eligibility List) · 18+
2026
Over timerating by season, and how you rank
By level2 levels played
3.5
88.9%
8W–1L · 63.4% of games
4.0
41.7%
55W–77L · 47.3% of games

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

By lineusually #3 Doubles, 33% of the time
#3 Doubles
33%
46 matches
#2 Doubles
23%
33 matches
#1 Singles
16%
23 matches
#4 Doubles
13%
18 matches
#1 Doubles
8%
11 matches
#2 Singles
7%
10 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.

You can get through anything if you keep going one point at a time.
Arthur Ashe