Teams

Zinn-Burggraaf & Rice: DMGCC

2026 Iowa Tri-Level League · 3.0-3.5-4.0 Women (West)

14 players · average NTRP 3.50 / IOWA

View scouting list →
Schedule3 played
2026-07-16vs Carl: AmesWon 20
W#1 DoublesHeather Ditsworth / Cara O'Neill vs Angela Carl / Jennifer Smith1-6, 6-1, 1-0
W#2 DoublesSonja Heying / Christina Jarck vs Hennie Baek / Mary Beth Westercamp6-2, 6-3
2026-07-02vs Goode & Bradfield: GenesisLost 03
L#1 DoublesHolly Shortenhaus / Cara O'Neill vs Anne Pham / Dawn Ver Steeg2-6, 2-6
L#2 DoublesSarah Zinn-Burggraaf / Christen Bliss vs Mitzi Hetherton / Ann Mincks4-6, 6-2, 0-1
L#3 DoublesJaime Morgan / Michele Staub vs Christine Halbrook / Kate Reis2-6, 1-6
2026-06-18vs Bangtson: LifeTimeLost 12
L#1 DoublesJenn Willis / Cara O'Neill vs Rebecca Studer / Becky Flander6-4, 3-6, 0-1
W#2 DoublesSarah Zinn-Burggraaf / Katie Ward vs Cathy Fay / Sarah Graf7-5, 6-2
L#3 DoublesMichele Staub / Jenna Steffensmeier vs Shirley Weuve / Lisa Braden3-6, 5-7
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 3.0-3.5-4.0 Women (West) 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 3.32 estimated across 11 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.

3.79
Jenn Willis
usually #3 Doubles 75%, also #1 Doubles 25% · published
3.69
Heather Ditsworth
usually #1 Doubles 100% · published 4
3.62
Holly Shortenhaus
usually #3 Doubles 63%, also #2 Doubles 25% · published 4
3.60
Cara O'Neill
usually #1 Doubles 60%, also #3 Doubles 40% · published 4
3.46
Sarah Zinn-Burggraaf
usually #2 Doubles 75%, also #3 Doubles 25% · published
3.42
Sonja Heying
usually #3 Doubles 67%, also #2 Doubles 33% · published
3.41
Michelle Rice
usually #3 Doubles 100% · published
3.08
Christina Jarck
usually #2 Doubles 100% · published 3.5
3.05
Christen Bliss
usually #2 Doubles 100% · published 3
2.77
Cheryl Minor
published 3
2.58
Jaime Morgan
usually #3 Doubles 100% · published 3
Jenna Steffensmeier
usually #3 Doubles 100% · published
Katie Ward
published
Michele Staub
usually #3 Doubles 100% · 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.

Michelle Rice + Sarah Zinn-Burggraaf4361% games+13.2% vs expected
Cheryl Minor + Sonja Heying7164% games+11.9% vs expected
Christina Jarck + Sarah Zinn-Burggraaf2744% games+7.4% vs expected
Sarah Zinn-Burggraaf + Sonja Heying11954% games+6.4% vs expected
Christina Jarck + Sonja Heying4746% games+2.5% vs expected
Holly Shortenhaus + Jenn Willis3349% games−5.2% vs expected
Holly Shortenhaus + Cara O'Neill4941% games−5.6% vs expected
Heather Ditsworth + Cara O'Neill2341% 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.

Jenn Willis
37W–21L career · 4 lines in 2026
1%94%5%
3.79
4
Heather Ditsworth
60W–35L career · 1 line in 2026
7%92%1%
3.69
4
Holly Shortenhaus
40W–72L career · 8 lines in 2026
18%82%<1%
3.62
4
Cara O'Neill
32W–36L career · 5 lines in 2026
22%78%<1%
3.60
Sarah Zinn-Burggraaf
70W–53L career · 4 lines in 2026
<1%64%36%
3.46
Sonja Heying
50W–42L career · 3 lines in 2026
<1%74%26%
3.42
Michelle Rice
28W–43L career · 2 lines in 2026
<1%75%25%
3.41
3.5
Christina Jarck
26W–31L career · 1 line in 2026
26%74%<1%
3.08
3
Christen Bliss
30W–11L career · 1 line in 2026
<1%35%65%
3.05
3
Cheryl Minor
40W–41L career · no lines in 2026
2%94%4%
2.77
3
Jaime Morgan
13W–20L career · 1 line in 2026
26%74%<1%
2.58
Jenna Steffensmeier
8W–10L career · 1 line in 2026
not enough data
Katie Ward
6W–0L career · no lines in 2026
not enough data
Michele Staub
14W–9L career · 2 lines in 2026
not enough data

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.