Athletic club facilities, physical fitness · California

Diamond Hills Sports Club

Oakley, CA · ~168 workers · 2 years of OSHA Injury Tracking Application data.

D
Poor Safety Record
4.7
Avg TCR
3.1
Industry avg
0
Fatalities
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The verdict

Diamond Hills Sports Club runs at 151% of its industry's injury rate - more dangerous than the typical Athletic club facilities, physical fitness workplace, earning a grade D.

Diamond Hills Sports Club: 4.7 TCR = 151% of Athletic club facilities, physical fitness BLS 3.1 · 2y Form 300A (see methodology below)

Diamond Hills Sports Club safety composite

Diamond Hills Sports Club scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 22%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

37/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
D 4.69 per 100 workers

Safer than 42% of industry peers

DART rate
F 3.88 per 100 workers

Safer than 22% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−1.6

2017→2018

Diamond Hills Sports Club injury rate improved

Diamond Hills Sports Club's TCR fell 1.6 from 5.5 in 2017 to 3.9 in 2018. Peak filing year was 2017 at 5.5 TCR. In 2018, DART was 0.83× this establishment's average TCR (severity share of cases).

2017=5.5 · 2018=3.9

OSHA ITA Form 300A scorecard

Establishment book 713940 · Oakley, CA ABOVE-IND · MID

Grade D · TCR 4.7 · 151% of ind

  • DART 3.9 DART
  • RANK #78/190
  • PHOTO 66th Street
  • BOOK 2y book
  • INJ 4 inj
  • SIZE ~168 FTE

Nearest TCR peer: 66th Street (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

Diamond Hills Sports Club in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Diamond Hills Sports Club averages 4.7 TCR (151% of the Athletic club facilities, physical fitness BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Diamond Hills Sports Club TCR series: 2017=5.5 · 2018=3.9 · BLS 3.1

Where Diamond Hills Sports Club falls in its industry

629 Athletic club facilities, phys establishments

Safer than 42% of graded establishments in this industry, whose median TCR is 4.2.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #78 safest of 190 Athletic club facilities, phys employers in California.

Diamond Hills Sports Club (168 employees, TCR 4.7) among 29 same-industry peers, split at the industry median of 62 employees and a TCR of 4.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 0100200300400 0246810 Average employees Total Case Rate Diamond Hills Sports Club
Diamond Hills Sports Club (168 employees, TCR 4.7) among 29 same-industry peers, split at the industry median of 62 employees and a TCR of 4.2

Diamond Hills Sports Club has more employees than the Athletic club facilities, physical fitne median and a higher injury rate than the industry's median TCR of 4.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2018 3.9 3.9 2 0 0
2017 5.5 0.0 2 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

713940 · CA · Oakley

629 Athletic club facilities, physical fitness employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 17 employers in Oakley, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR 66th Street 4.7 TCR
NAICS-TCR Carol Stream Park District 4.7 TCR
NAICS-TCR Columbia Athletic Clubs - JBC 4.7 TCR
NAICS-TCR Salina,KS 4.7 TCR
STATE-SIZE Mininger Farms 168 FTE
STATE-SIZE Bud of California Lettuce 168 FTE
STATE-SIZE California Sun Grower Services/Equipment Services & Lucero Farms - Los Banos 168 FTE
STATE-SIZE CCH 168 FTE
CITY-NEAR Amazon.com Services LLC - SCK8 748 FTE
CITY-NEAR Amazon.com Services LLC - TCY9 416 FTE
CITY-NEAR Amazon.com Services LLC - DFO2 251 FTE
CITY-NEAR CAOAL - OAKLEY 178 FTE
NAT-TCR Howell Munitions & Technology, Inc. 4.7 TCR
NAT-TCR Academy - Epping 4.7 TCR
NAT-TCR Ardagh Glass Inc Lincoln 4.7 TCR
NAT-TCR Municipal 4.7 TCR
NAT-SIZE Heartland Health Care Center - Orange Park 168 FTE
NAT-SIZE Manor Care Health Services - Sinking Spring 168 FTE
NAT-SIZE Heartland Health Care Center - Briarwood 168 FTE
NAT-SIZE Sherwood Foods-Florida 168 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2018, 2017. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.