diff --git a/src/server/procedures/addTournament.ts b/src/server/procedures/addTournament.ts
index 70ec5d5..72ed322 100644
--- a/src/server/procedures/addTournament.ts
+++ b/src/server/procedures/addTournament.ts
@@ -27,6 +27,8 @@ export const addTournament = publicProcedure
       const tournamentData: Omit<TournamentData, "_id" | "tournament_id"> = {
         ...tournament,
         date: format(tournament.date, "dd/MM/yyyy"),
+        start_date: format(tournament.date, "dd/MM/yyyy"),
+        end_date: format(tournament.date, "dd/MM/yyyy"),
         time_control: tcMap[tournament.time_control],
         coordinates: tournament.coordinates as [number, number],
         entry_method: "manual",
diff --git a/src/server/procedures/searchTournaments.ts b/src/server/procedures/searchTournaments.ts
index adea96b..6958d2e 100644
--- a/src/server/procedures/searchTournaments.ts
+++ b/src/server/procedures/searchTournaments.ts
@@ -47,7 +47,7 @@ export const searchTournaments = publicProcedure
             $addFields: {
               dateParts: {
                 $dateFromString: {
-                  dateString: "$end_date",
+                  dateString: "$start_date",
                   format: "%d/%m/%Y",
                 },
               },
@@ -83,7 +83,7 @@ export const searchTournaments = publicProcedure
           tournament: t.tournament,
           town: t.town,
           department: t.department,
-          date: t.date,
+          date: t.start_date,
           url: t.url,
           timeControl,
           status: t.status,
diff --git a/src/types.ts b/src/types.ts
index c7dd851..a8928b8 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -14,6 +14,8 @@ export const tournamentDataSchema = z.object({
   time_control: z.string(),
   norm_tournament: z.boolean().optional(),
   date: z.string(),
+  start_date: z.string(),
+  end_date: z.string(),
   coordinates: z.array(z.number()).min(2).max(2),
   entry_method: z.enum(["manual", "auto"]),
   pending: z.boolean().optional(),
diff --git a/src/utils/eloCalculator.ts b/src/utils/eloCalculator.ts
index 1f47ab2..935b009 100644
--- a/src/utils/eloCalculator.ts
+++ b/src/utils/eloCalculator.ts
@@ -1,6 +1,6 @@
 import { clamp, last } from "lodash";
 
-// Fide uses teh following table to establish the chance of winning based on the difference in elo.
+// Fide uses the following table to establish the chance of winning based on the difference in elo.
 // https://handbook.fide.com/chapter/B022017
 
 const differenceToProbability: [