Teams

Zinn-Burggraaf & Olafson: DMGCC

2025 IA 40 & Over Adult League · 3.5 Women

19 players · average NTRP 3.39 / IOWA

View scouting list →
Schedule8 played
2025-01-04vs Cownie & Whipp: LifetimeWon 32
W#1 DoublesSonja Heying / Lindsay Ruppert vs Karen Braud / Candy Vandewater6-1, 6-3
W#1 SinglesMegan Elfers vs Sara Peterson6-1, 6-0
L#2 DoublesBeth Eganhouse / Michelle Rice vs Patty Avilez / Lauma Dimpere7-5, 2-6, 0-1
L#3 DoublesJulie Hempel / Erin Osier vs Michelle Cownie / Cristen Schipper3-6, 3-6
W#4 DoublesKatie Ward / Laura Cressy vs Keaton Pulver / Ann Stahly6-4, 7-6
2024-12-14vs Bangtson & Beebe: LifetimeWon 32
W#1 DoublesMichelle Rice / Sarah Zinn-Burggraaf vs Pam Bangtson / Laura Hunt6-1, 6-1
L#1 SinglesGwen Conte vs Huafeng Shi1-6, 2-6
W#2 DoublesJennifer Berdovich / Aaron Laskey vs Jane Terry / Donna Haager6-3, 6-3
W#3 DoublesChristina Jarck / Erin Osier vs Dana McBratney / Pamela Kinnevan6-3, 6-3
L#4 DoublesLindsay Ruppert / Cheryl Minor vs Megan Beebe / Ann Mincks5-7, 4-6
2024-12-07vs Sissel: GenesisWon 31
L#1 DoublesBrandee Morrow / Julie Hempel vs Joan Meek / Amy Upright5-7, 3-6
W#1 SinglesMegan Elfers vs Janet Johnson6-0, 6-3
W#2 DoublesSonja Heying / Danita Olafson vs June MacKay / Terri Bunting6-3, 6-2
W#3 DoublesChristina Jarck / Katie Ward vs Lee Johnson / Michelle Mullin6-4, 6-0
2024-11-16vs IA/Snedegar/Hagan/40&Over3.5WWon 32
L#1 DoublesDanita Olafson / Brandee Morrow vs Karen Maigaard / Heidi Snedegar2-6, 3-6
W#1 SinglesMegan Elfers vs Christina Lederman6-2, 6-2
W#2 DoublesAaron Laskey / Julie Hempel vs Mitzi Hetherton / Joan Gray2-6, 6-3, 1-0
W#3 DoublesSonja Heying / Sarah Zinn-Burggraaf vs Nina Pack / Renea Hagan6-3, 6-2
L#4 DoublesBeth Eganhouse / Lindsay Ruppert vs Julie Merfeld / Sara van Wyngarden5-7, 4-6
2024-11-09vs Bangtson & Beebe: LifetimeWon 41
W#1 DoublesSonja Heying / Sarah Zinn-Burggraaf vs Karin Beschen / Ann Mincks0-6, 6-2, 1-0
W#1 SinglesMegan Elfers vs Kristine Chung6-3, 7-6
W#2 DoublesSue Auer / Lindsay Ruppert vs Megan Beebe / Laura Hunt6-1, 7-5
L#3 DoublesJulie Hempel / Donnis Rafferty vs Cheryl Reich-Bohnenkamp / Dana McBratney5-7, 3-6
W#4 DoublesJennifer Berdovich / Aaron Laskey vs Pam Bangtson / Nancy Cobb6-4, 6-4
2024-10-26vs Cownie & Whipp: LifetimeLost 23
L#1 DoublesKatie Ward / Cheryl Minor vs Cristen Schipper / Patty Avilez0-6, 0-6
W#1 SinglesMegan Elfers vs Janel Hansen6-1, 4-6, 1-0
W#2 DoublesSarah Zinn-Burggraaf / Sonja Heying vs Kellie Hockmuth / Britt Bremner6-3, 7-6
L#3 DoublesBeth Eganhouse / Laura Cressy vs Lauma Dimpere / Michelle Cownie5-7, 2-6
L#4 DoublesErin Osier / Jennifer Berdovich vs Sara Peterson / Candy Vandewater1-6, 5-7
2024-10-05vs Sissel: GenesisWon 41
W#1 DoublesSonja Heying / Sarah Zinn-Burggraaf vs Janet Johnson / Joan Meek4-6, 6-2, 1-0
W#1 SinglesMegan Elfers vs Josephine Jannes6-3, 6-0
W#2 DoublesDanita Olafson / Donnis Rafferty vs Lindsay Havig / Karen Sissel2-6, 6-3, 1-0
L#3 DoublesJennifer Berdovich / Lindsay Ruppert vs Joy Bachmann / Michelle Mullin5-7, 6-4, 0-1
W#4 DoublesGwen Conte / Christina Jarck vs Lee Johnson / June MacKay6-4, 6-1
2024-09-21vs IA/Snedegar/Hagan/40&Over3.5WLost 23
W#1 DoublesSarah Zinn-Burggraaf / Brandee Morrow vs Andrea Arias / Christa Whitmer3-6, 7-5, 1-0
W#1 SinglesMegan Elfers vs Christina Lederman6-2, 6-0
L#2 DoublesGwen Conte / Aaron Laskey vs Nina Pack / Renea Hagan2-6, 2-6
L#3 DoublesErin Osier / Beth Eganhouse vs Karen Maigaard / Casey Claypool3-6, 3-6
L#4 DoublesDonnis Rafferty / Danita Olafson vs Holly Rebelez / Julie Merfeld2-6, 2-6
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 standings10 teams · 3.5 Women
TeamWLInd. WInd. LSets lostGames lost
1IA/Snedegar/Hagan/40&Over3.5W71281228289
2Bradley & Heffernan: HTRC71271334270
3Zinn-Burggraaf & Olafson: DMGCC62251536330
4Michelsen & Reinsch: QCTC44221841306
5Cownie & Whipp: Lifetime44211942349
6Kemmerer & Novak: Smithfield44192146356
7Cobb & Trovas: Elmcrest35192151385
8Bangtson & Beebe: Lifetime26182251395
9Bemus & McKinstry: Smithfield26132761396
10Sissel: Genesis1783266435

Ordered by team wins, then losses, then sets lost — the order USTA uses to seed a flight. Individual wins are lines, not ties.

See the full flight, with every team’s record

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 3.16 estimated across 16 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.

3.48
Megan Elfers
usually #1 Singles 100% · published
3.46
Sarah Zinn-Burggraaf
usually #1 Doubles 57%, also #2 Doubles 14% · published
3.44
Lindsay Ruppert
usually #1 Doubles 54%, also #2 Doubles 23% · published
3.42
Sonja Heying
usually #1 Doubles 50%, also #2 Doubles 33% · published
3.41
Michelle Rice
usually #2 Doubles 33%, also #1 Doubles 33% · published
Brandee Morrow
usually #1 Doubles 100% · published 3.5
3.22
Beth Eganhouse
usually #3 Doubles 50%, also #2 Doubles 25% · published 3.5
3.18
Erin Osier
usually #3 Doubles 75%, also #4 Doubles 25% · published 3.5
3.16
Julie Hempel
usually #3 Doubles 50%, also #1 Doubles 25% · published
3.13
Aaron Laskey
usually #2 Doubles 75%, also #4 Doubles 25% · published 3.5
3.08
Christina Jarck
usually #3 Doubles 67%, also #4 Doubles 33% · published 3.5
3.07
Jennifer Berdovich
usually #4 Doubles 50%, also #3 Doubles 25% · published
3.06
Sue Auer
usually #2 Doubles 100% · published
3.00
Danita Olafson
usually #2 Doubles 50%, also #1 Doubles 25% · published 3.5
2.99
Donnis Rafferty
usually #2 Doubles 33%, also #3 Doubles 33% · published 3.5
2.77
Cheryl Minor
usually #2 Doubles 67%, also #1 Doubles 17% · published 3
2.71
Gwen Conte
usually #4 Doubles 33%, also #1 Singles 33% · published 3
Katie Ward
published
Laura Cressy
usually #3 Doubles 50%, also #4 Doubles 50% · 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
Beth Eganhouse + Lindsay Ruppert3447% games+7.5% vs expected
Christina Jarck + Sarah Zinn-Burggraaf2744% games+7.4% vs expected
Sarah Zinn-Burggraaf + Sonja Heying11954% games+6.4% vs expected
Jennifer Berdovich + Aaron Laskey4153% games+3.9% vs expected
Christina Jarck + Sonja Heying4746% games+2.5% vs expected
Julie Hempel + Jennifer Berdovich2343% games−3.5% vs expected
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.

Megan Elfers
27W–6L career · 8 lines in 2025
<1%58%42%
3.48
Sarah Zinn-Burggraaf
70W–53L career · 7 lines in 2025
<1%64%36%
3.46
Lindsay Ruppert
78W–60L career · 13 lines in 2025
<1%69%31%
3.44
Sonja Heying
50W–42L career · 6 lines in 2025
<1%74%26%
3.42
Michelle Rice
28W–43L career · 3 lines in 2025
<1%75%25%
3.41
3.5
Brandee Morrow
18W–16L career · 3 lines in 2025
not enough data
3.5
Beth Eganhouse
54W–43L career · 4 lines in 2025
5%94%2%
3.22
3.5
Erin Osier
20W–23L career · 4 lines in 2025
9%91%1%
3.18
Julie Hempel
14W–22L career · 4 lines in 2025
12%88%<1%
3.16
3.5
Aaron Laskey
9W–10L career · 4 lines in 2025
16%84%<1%
3.13
3.5
Christina Jarck
26W–31L career · 3 lines in 2025
26%74%<1%
3.08
Jennifer Berdovich
13W–18L career · 4 lines in 2025
28%71%<1%
3.07
Sue Auer
22W–9L career · 1 line in 2025
31%69%<1%
3.06
3.5
Danita Olafson
34W–49L career · 4 lines in 2025
50%50%<1%
3.00
3.5
Donnis Rafferty
15W–27L career · 3 lines in 2025
54%46%<1%
2.99
3
Cheryl Minor
40W–41L career · 6 lines in 2025
2%94%4%
2.77
3
Gwen Conte
10W–20L career · 3 lines in 2025
5%94%1%
2.71
Katie Ward
6W–0L career · no lines in 2025
not enough data
Laura Cressy
4W–5L career · 2 lines in 2025
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.