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K
Justice Kosny
Workplace Safety and Insurance Appeals Tribunal
Reported rulings
13
Practice focus
Employment, General
Outcomes · all rulings
Defendant prevailed
54%
Plaintiff prevailed
31%
Mixed / split
15%
Based on 13 reported rulings. Past results are not necessarily indicative of future results.
Curia · Appearance strategy

Run heavy on record-based arguments. This judge is historically receptive to plaintiff submissions grounded in contemporaneous medical records. Narrative-heavy expert opinions without corroborating documentation are more likely to be discounted.

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Recent rulings
Case
Citation
Date
Decision No. 1070/25
2025 ONWSIAT 1467 (CanLII)
Dec 11, 2025
Decision No. 1764/23R2
2025 ONWSIAT 1373 (CanLII)
Nov 19, 2025
Decision No. 967/25
2025 ONWSIAT 1318 (CanLII)
Nov 6, 2025
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