| Match History (Recent) | View Advanced Player Stats |
|
David Biermann (Denver, CO)
Male |
4.5 C 12/31/2024 |
| Estimated Dynamic Rating |
4.5072 10/18/2025 |
| Projected Year End Rating |
------ ---------- |
4.5 Rating Meter
4.0001 - 4.5000
4.0001 - 4.5000
| Recent History |
| League/Level | Total Matches |
Win | Loss | Tie | WPct | Total Sets |
Win | Loss | WPct | Total Games |
Win | Loss | WPct | Defaults |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Adult 18+ 4.5 | 2 | 2 | 0 | 0 | 100.0 | 5 | 4 | 1 | 80.0 | 43 | 24 | 19 | 55.8 | 0 |
| Adult 40+ 4.5 | 9 | 5 | 4 | 0 | 55.6 | 21 | 11 | 10 | 52.4 | 168 | 87 | 81 | 51.8 | 0 |
| Adult 55+ 9.0 | 5 | 4 | 1 | 0 | 80.0 | 10 | 8 | 2 | 80.0 | 86 | 56 | 30 | 65.1 | 0 |
| Total | 16 | 11 | 5 | 0 | 68.8 | 36 | 23 | 13 | 63.9 | 297 | 167 | 130 | 56.2 | 0 |
| 08/02/2025 | D2 | Adult 40+ 4.5 Flight |
|---|---|---|
| CM NAVY Intermountain |
W | SS-H BLUE Intermountain |
| Matthew Hooper (4.34) | 6-2 6-3 |
Josh Dougan (4.47) Matthew Bruff (4.40) |
| Match: 4.71 | Rating: 4.51 |
| 07/13/2025 | D1 | Adult 55+ 9.0 Districts |
|---|---|---|
| PCRK RED Intermountain |
L | GOG BLUE Intermountain |
| Francois Monnar (4.65) | 6-3 7-5 |
Harold Woods (4.54) Frank Coyle (4.38) |
| Match: 4.24 | Rating: 4.41 |
| 07/10/2025 | D1 | Adult 40+ 4.5 |
|---|---|---|
| CM NAVY Intermountain |
W | NJ RED Intermountain |
| Matthew Hooper (4.31) | 6-2 6-3 |
Travis Staebell (4.32) Ryan Dunham (4.27) |
| Match: 4.60 | Rating: 4.47 |
| 06/26/2025 | D2 | Adult 40+ 4.5 |
|---|---|---|
| CM NAVY Intermountain |
W | WP-C GOLD Intermountain |
| Matthew Hooper (4.32) | 6-2 4-6 1-0 |
James Sanders (4.35) Matthew Kirsch (4.38) |
| Match: 4.49 | Rating: 4.43 |
| 06/23/2025 | D3 | Adult 55+ 9.0 |
|---|---|---|
| PCRK RED Intermountain |
W | NJ GOLD Intermountain |
| David Hand (4.32) | 6-2 6-2 |
William Bonthron (4.11) Larry Middle (4.17) |
| Match: 4.49 | Rating: 4.42 |
| 06/23/2025 | D1 | Adult 55+ 9.0 |
|---|---|---|
| PCRK RED Intermountain |
W | GTC NAVY Intermountain |
| Rob Hill (4.23) | 6-3 6-3 |
Alberto Gutierrez (4.25) Bradford Winslow (4.35) |
| Match: 4.57 | Rating: 4.43 |
| 06/19/2025 | D1 | Adult 40+ 4.5 |
|---|---|---|
| CM NAVY Intermountain |
W | DTC GREEN Intermountain |
| Paul Wrona (4.37) | 5-7 6-1 1-0 |
MATTHEW BLAIR (4.15) Joshua Coleman (4.33) |
| Match: 4.35 | Rating: 4.39 |
| 06/12/2025 | D1 | Adult 40+ 4.5 |
|---|---|---|
| CM NAVY Intermountain |
W | MC GOLD Intermountain |
| Matthew Hooper (4.26) | 7-5 6-2 |
Shane Carroll (4.28) Dustin Alexander (4.12) |
| Match: 4.43 | Rating: 4.40 |
| 05/28/2025 | D1 | Adult 55+ 9.0 |
|---|---|---|
| PCRK RED Intermountain |
W | NJ GOLD Intermountain |
| Francois Monnar (4.78) | 6-1 6-0 |
Christopher Johnstone (4.28) Brett Vladika (3.89) |
| Match: S | Rating: 4.37 |
| 05/22/2025 | D1 | Adult 18+ 4.5 |
|---|---|---|
| DTC PURPLE Intermountain |
W | CP RED Intermountain |
| Matthew Dankner (4.37) | 4-6 6-4 1-0 |
William Wall (4.11) Shawn Iben (4.22) |
| Match: 4.21 | Rating: 4.37 |
| 05/14/2025 | D3 | Adult 55+ 9.0 |
|---|---|---|
| PCRK RED Intermountain |
W | GTC NAVY Intermountain |
| Rob Hill (4.25) | 6-2 6-4 |
Brian Frederick (4.35) Jeff Ceurvorst (4.22) |
| Match: 4.54 | Rating: 4.41 |
| 05/01/2025 | D3 | Adult 18+ 4.5 |
|---|---|---|
| DTC PURPLE Intermountain |
W | CACM RED Intermountain |
| Sumant Bhat (4.27) | 6-3 7-6 |
Andy Duncan (4.35) Matthew Wiens (4.33) |
| Match: 4.47 | Rating: 4.38 |
| 10/27/2024 | D4 | Adult 40+ 4.5 Nationals |
|---|---|---|
| DTC GREEN Intermountain |
L | Mid-Atlantic/Tull/40&Over4.5M Mid-Atlantic |
| Taylor Lawton (4.11) | 6-2 6-4 |
Oliver Lee (4.35) Chris Ryan (4.22) |
| Match: 4.22 | Rating: 4.38 |
| 10/27/2024 | D2 | Adult 40+ 4.5 |
|---|---|---|
| DTC GREEN Intermountain |
L | Kings Farm (Rodney Nilson)* Southern |
| Tyler Coyle (4.43) | 6-2 6-3 |
Ricky Makerson (4.34) James Cagle (4.47) |
| Match: 4.15 | Rating: 4.38 |
| 10/26/2024 | D2 | Adult 40+ 4.5 |
|---|---|---|
| DTC GREEN Intermountain |
L | Upper Dublin Middle States |
| Benoit Guin (4.15) | 6-2 6-2 |
Ryan Collins (4.61) Joseph Ferry (4.28) |
| Match: 4.30 | Rating: 4.41 |
| 10/25/2024 | D4 | Adult 40+ 4.5 |
|---|---|---|
| DTC GREEN Intermountain |
L | N OR-PTC-Borosky Pacific NW |
| Taylor Lawton (4.12) | 4-6 7-6 1-0 |
Bryan Ward (4.47) Ry Koteen (4.16) |
| Match: 4.46 | Rating: 4.45 |
| Glossary |
| Match | Player rating for individual match. |
| Rating | Dynamic rating after completed match. |
| NC | Match not yet calculated into rating. |
| S | Self rated or unrated player involved in match so no match rating calculated for current player. |
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