Teams

Riverstone / DiDonato

2026 Collier Adult 18 & Over Spring · 3.5 Adult 18 & Over - Women

13 players · average NTRP 3.44 / REGION_7

View scouting list →
Schedule6 played
2026-05-19vs Palmira / FontanaLost 13
L#1 DoublesLauren Kirsch / Cecilia Trinh vs Melody Miller / Megumi Yoshida0-6, 1-6
L#1 SinglesSILVIA Ojeda vs Anastasia Brooks2-6, 2-6
L#2 DoublesSuzanne Kirsch / Sharon Powidzki vs Crystal Schlanbusch / Yadira Alcolea6-3, 2-6, 1-0
W#3 DoublesAmy Schiffer / Audra DiDonato vs Marisa Fontana / Lynn Mariotti6-2, 4-6, 1-0
2026-05-05vs spring Winners/Naples YMCA / OlsonLost 03
L#1 DoublesLauren Kirsch / Nikki Miller vs Sandra Frost / Allison Lubert3-6, 3-6
L#1 SinglesCecilia Trinh vs Daniela Tombion1-6, 2-6
L#2 DoublesAmy Schiffer / Cory Witters vs Lisa Fontanini / Mara Mazza7-6, 1-6, 0-1
2026-04-28vs Palmira / FontanaLost 14
W#1 DoublesRenee DiGangi / Nikki Miller vs Vanessa Watt / Cheryl Ingram7-5, 6-2
L#1 SinglesCecilia Trinh vs Anastasia Brooks2-6, 5-7
L#2 DoublesAudra DiDonato / Suzanne Kirsch vs Bridget Smagala / Shauna Dee4-6, 3-6
L#2 SinglesSILVIA Ojeda vs Alena Freidline3-6, 2-6
L#3 DoublesLauren Kirsch / Kristi Waddell vs LISA HAMILTON / Emily Burstein3-6, 3-6
W#1 DoublesRenee DiGangi / Nikki Miller vs Ramsay Erickson / Jane Sarver6-3, 6-3
L#1 SinglesSILVIA Ojeda vs Daniela Tombion2-6, 3-6
L#2 DoublesSharon Powidzki / Cory Witters vs Mia Delk / Victoria Pollock5-7, 4-6
W#2 SinglesCecilia Trinh vs Sara Anderson7-6, 6-2
W#3 DoublesSuzanne Kirsch / Heather Cook vs Gabriela Chahwan / Lauren Keillor6-4, 4-0
2026-04-14vs spring Winners/Naples YMCA / OlsonLost 14
L#1 DoublesSuzanne Kirsch / Heather Cook vs Mara Mazza / Lisa Fontanini6-4, 3-6, 0-1
L#1 SinglesSILVIA Ojeda vs Daniela Tombion1-6, 3-6
W#2 DoublesLauren Kirsch / Renee DiGangi vs Ramsay Erickson / Gabriela Chahwan6-0, 7-5
L#2 SinglesCecilia Trinh vs Sara Anderson6-7, 2-6
L#3 DoublesSharon Powidzki / Aimee Hummel vs Maristela Battilana / Victoria Pollock7-5, 4-6, 0-1
2026-04-11vs Palmira / FontanaLost 05
L#1 DoublesRenee DiGangi / Heather Cook vs Vanessa Watt / Cheryl Ingram7-6, 4-6, 1-0
L#1 SinglesSILVIA Ojeda vs Alena Freidline1-6, 5-7
L#2 DoublesLauren Kirsch / Kristi Waddell vs Shauna Dee / Megumi Yoshida2-6, 3-6
L#2 SinglesCecilia Trinh vs Anastasia Brooks1-6, 3-6
L#3 DoublesAimee Hummel / Audra DiDonato vs Yadira Alcolea / Crystal Schlanbusch1-6, 3-6
A tie can be incomplete. Tell us if someone is missing.
i
Grouped by tie — one fixture, several lines. A line shows only when a player on it is someone we have indexed, so an early-season tie for a newly-added team can look short. This also means the line count here will not match the header, which counts individual player appearances.

Flight standings for 3.5 Adult 18 & Over - Women have not been collected yet. Where we have them we show every team in the flight ranked, with this team highlighted. The crawler is still filling in older seasons and flights.

ScoutingWhere each opponent usually plays

Signed-in extra: whether this captain plays strict strength order or mixes it up, from every doubles line they have put out. Create a free account to see it.

Roster averages 3.24 estimated across 13 rated players. No lineup is published in advance, so the column below is where each player has actually been used — a captain's habits are the best available forecast. Sign in and claim your record to see who you have played.

3.61
Nikki Miller
usually #1 Doubles 100% · published
3.54
Renee DiGangi
usually #1 Doubles 75%, also #2 Doubles 25% · published 3.5
3.50
Suzanne Kirsch
usually #2 Doubles 50%, also #1 Doubles 25% · published 3.5
3.33
Cecilia Trinh
usually #2 Singles 50%, also #1 Singles 33% · published 3.5
3.32
Amy Schiffer
usually #3 Doubles 50%, also #2 Doubles 50% · published 3.5
3.23
SILVIA Ojeda
usually #1 Singles 80%, also #2 Singles 20% · published
3.17
Heather Cook
usually #1 Doubles 67%, also #3 Doubles 33% · published
3.16
Cory Witters
usually #2 Doubles 100% · published 3.5
3.13
Audra DiDonato
usually #3 Doubles 67%, also #2 Doubles 33% · published 3.5
3.13
Lauren Kirsch
usually #2 Doubles 40%, also #1 Doubles 40% · published
3.07
Aimee Hummel
usually #3 Doubles 100% · published 3.5
3.03
Kristi Waddell
usually #2 Doubles 50%, also #3 Doubles 50% · published 3
2.92
Sharon Powidzki
usually #2 Doubles 67%, also #3 Doubles 33% · published
Established pairs

Doubles pairs from this roster with three or more matches together anywhere — ordered by performance against what the rating gap predicted, not by record.

Renee DiGangi + Amy Schiffer6068% games+21.6% vs expected
Renee DiGangi + Heather Cook8752% games+3.8% vs expected
Cecilia Trinh + Renee DiGangi12360% games+3.4% vs expected
Audra DiDonato + Suzanne Kirsch262251% games+3.1% vs expected
Renee DiGangi + Suzanne Kirsch3255% games−1.3% vs expected
Lauren Kirsch + Suzanne Kirsch2545% gamesnot enough data
Sharon Powidzki + Audra DiDonato0538% gamesnot enough data
Aimee Hummel + Renee DiGangi2345% gamesnot enough data
Roster

Ordered by our estimated dynamic rating, which is why two players at the same published level are not tied — a published 4.0 says nothing about where inside the band someone sits. Lines played in this team’s season are shown beside each name.

Nikki Miller
30W–10L career · 3 lines in 2026
<1%22%78%
3.61
3.5
Renee DiGangi
99W–70L career · 4 lines in 2026
<1%39%61%
3.54
3.5
Suzanne Kirsch
95W–69L career · 4 lines in 2026
<1%51%49%
3.50
3.5
Cecilia Trinh
94W–102L career · 6 lines in 2026
1%88%11%
3.33
3.5
Amy Schiffer
19W–19L career · 2 lines in 2026
1%89%10%
3.32
SILVIA Ojeda
7W–14L career · 5 lines in 2026
5%92%3%
3.23
Heather Cook
10W–9L career · 3 lines in 2026
11%88%1%
3.17
3.5
Cory Witters
112W–125L career · 2 lines in 2026
13%87%1%
3.16
3.5
Audra DiDonato
94W–159L career · 3 lines in 2026
18%82%<1%
3.13
Lauren Kirsch
9W–18L career · 5 lines in 2026
18%81%<1%
3.13
3.5
Aimee Hummel
48W–67L career · 2 lines in 2026
30%70%<1%
3.07
3
Kristi Waddell
10W–19L career · 2 lines in 2026
<1%42%58%
3.03
Sharon Powidzki
13W–53L career · 3 lines in 2026
72%28%<1%
2.92

Three percentages are where each player stands right now: the chance they are below their band, inside it, or above it, on the way they are playing this season. The number on the right is our estimated dynamic rating, which USTA never publishes. This is today rather than a forecast of December, because a forecast has to assume future matches and cannot know whether someone will even be offered them. Percentages are blank where a player has too few matches this season, or at a level where the model does not yet beat a base-rate guess; the estimate is a weaker claim than a probability and survives where those do not.

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.