diff --git a/src/components/forms/DefaultCompletionsForm/DefaultCompletionsForm.tsx b/src/components/forms/DefaultCompletionsForm/DefaultCompletionsForm.tsx
new file mode 100644
index 00000000..f9290c4b
--- /dev/null
+++ b/src/components/forms/DefaultCompletionsForm/DefaultCompletionsForm.tsx
@@ -0,0 +1,139 @@
+import styled from '@emotion/styled';
+import AddCircleOutlineIcon from '@mui/icons-material/AddCircleOutline';
+import DeleteIcon from '@mui/icons-material/Delete';
+import { Box, Button, Grid, GridProps, IconButton, Typography, useTheme } from '@mui/material';
+import { FC } from 'react';
+import {
+  Control,
+  Controller,
+  FieldArrayWithId,
+  UseFieldArrayAppend,
+  UseFieldArrayRemove
+} from 'react-hook-form';
+
+import { useAppSelector } from '../../../app/hooks';
+import ThemeMode from '../../../models/ThemeMode';
+import { selectThemeMode } from '../../../store/theme/theme.selectors';
+import { FormValues } from '../TrackerForm/types';
+import CompletionQuantityTextField from '../completions/CompletionQuantityTextField';
+import CompletionUnitTextField from '../completions/CompletionUnitTextField';
+
+export const FieldsetGrid = styled(Grid)`
+  border: 1px solid rgba(0, 0, 0, 0.23);
+  border-radius: 4px;
+  padding: 8px;
+`;
+
+interface Props {
+  append: UseFieldArrayAppend<FormValues, 'defaultCompletions'>;
+  control: Control<FormValues, any> /* eslint-disable-line @typescript-eslint/no-explicit-any */;
+  fields: FieldArrayWithId<FormValues, 'defaultCompletions', 'id'>[];
+  gridProps?: GridProps;
+  remove: UseFieldArrayRemove;
+}
+
+/**
+ * This forms is used to create one or many defaultCompletions for a new tracker.
+ *
+ * @param {*} { append, control, fields, gridProps, remove }
+ * @return {*}
+ */
+const DefaultCompletionsForm: FC<Props> = ({ append, control, fields, gridProps, remove }) => {
+  const themeMode = useAppSelector(selectThemeMode);
+  const theme = useTheme();
+
+  const fieldsetSx = {
+    bgcolor: themeMode === ThemeMode.LIGHT ? theme.palette.grey[100] : theme.palette.grey[900],
+    mb: 1
+  };
+
+  return (
+    <Box>
+      {fields.map((field, index) => (
+        <FieldsetGrid columns={2} container key={field.id} sx={fieldsetSx} {...gridProps}>
+          <Grid item xs={2} sx={{ display: 'flex', justifyContent: 'space-between', mb: 1 }}>
+            <Typography variant="subtitle1">Réalisation par défaut n°{index + 1}</Typography>
+            <IconButton onClick={() => remove(index)} sx={{ p: 0 }}>
+              <DeleteIcon color="error" />
+            </IconButton>
+          </Grid>
+          <Grid item xs={1}>
+            <Controller
+              control={control}
+              name={`defaultCompletions.${index}.quantity` as const}
+              rules={{
+                min: 0,
+                pattern: /^\d+$/,
+                required: true
+              }}
+              render={({ field: { onChange, value }, fieldState: { error } }) => {
+                let errorText = '';
+                if (error) {
+                  switch (error.type) {
+                    case 'min':
+                      errorText = 'La quantité doit être supérieure à 0.';
+                      break;
+
+                    case 'pattern':
+                      errorText = 'La quantité doit être un nombre.';
+                      break;
+
+                    case 'required':
+                      errorText = 'La quantité est requise';
+                      break;
+                  }
+                }
+                return (
+                  <CompletionQuantityTextField
+                    error={!!error}
+                    helperText={error && errorText}
+                    label={'Quantité'}
+                    onChange={onChange}
+                    required
+                    size="small"
+                    inputProps={{
+                      style: {
+                        textAlign: 'right'
+                      }
+                    }}
+                    sx={{ mb: 1 }}
+                    style={{}}
+                    value={value || ''}
+                  />
+                );
+              }}
+            />
+          </Grid>
+          <Grid item xs={1}>
+            <Controller
+              control={control}
+              name={`defaultCompletions.${index}.unit` as const}
+              rules={{ required: true }}
+              render={({ field: { onChange, value }, fieldState: { error } }) => (
+                <CompletionUnitTextField
+                  error={!!error}
+                  helperText={error ? 'Une unité est requise' : ''}
+                  label={'Unité'}
+                  onChange={onChange}
+                  required
+                  size="small"
+                  sx={{ mb: 1 }}
+                  value={value}
+                />
+              )}
+            />
+          </Grid>
+        </FieldsetGrid>
+      ))}
+      <Button
+        onClick={() => append({})}
+        startIcon={<AddCircleOutlineIcon />}
+        sx={{ mb: 2 }}
+        variant="contained">
+        Réalisation par défaut
+      </Button>
+    </Box>
+  );
+};
+
+export default DefaultCompletionsForm;
diff --git a/src/components/forms/TrackerForm/TrackerForm.tsx b/src/components/forms/TrackerForm/TrackerForm.tsx
index 05665c15..7fef8b31 100644
--- a/src/components/forms/TrackerForm/TrackerForm.tsx
+++ b/src/components/forms/TrackerForm/TrackerForm.tsx
@@ -7,6 +7,7 @@ import { v4 } from 'uuid';
 import { useAppDispatch } from '../../../app/hooks';
 import TrackerStatus from '../../../models/TrackerStatus';
 import { createTracker } from '../../../store/trackers/trackersSlice';
+import DefaultCompletionsForm from '../DefaultCompletionsForm/DefaultCompletionsForm';
 import RequiredCompletionsForm from '../RequiredCompletionsForm/RequiredCompletionsForm';
 import { FormValues } from './types';
 
@@ -14,6 +15,7 @@ const getDefaultValues = (): FormValues => ({
   id: v4(),
   beginDate: new Date().toString(),
   duration: '',
+  defaultCompletions: [],
   entries: [],
   name: '',
   requiredCompletions: [
@@ -33,10 +35,14 @@ const TrackerForm: FC<Props> = ({ hideForm }) => {
   const { control, handleSubmit, reset } = useForm<FormValues>({
     defaultValues: getDefaultValues()
   });
-  const { fields, append, remove } = useFieldArray({
+  const requiredCompletionsFieldArray = useFieldArray({
     control, // control props comes from useForm
     name: 'requiredCompletions'
   });
+  const defaultCompletionsFieldArray = useFieldArray({
+    control, // control props comes from useForm
+    name: 'defaultCompletions'
+  });
 
   const dispatch = useAppDispatch();
 
@@ -139,7 +145,19 @@ const TrackerForm: FC<Props> = ({ hideForm }) => {
         }}
       />
 
-      <RequiredCompletionsForm append={append} control={control} fields={fields} remove={remove} />
+      <RequiredCompletionsForm
+        append={requiredCompletionsFieldArray.append}
+        control={control}
+        fields={requiredCompletionsFieldArray.fields}
+        remove={requiredCompletionsFieldArray.remove}
+      />
+
+      <DefaultCompletionsForm
+        append={defaultCompletionsFieldArray.append}
+        control={control}
+        fields={defaultCompletionsFieldArray.fields}
+        remove={defaultCompletionsFieldArray.remove}
+      />
 
       <Stack direction="row" justifyContent="center" spacing={1}>
         <Button type="submit" onClick={handleSubmit(onSubmit)} variant={'outlined'}>
diff --git a/src/models/Tracker.ts b/src/models/Tracker.ts
index 7236d734..ce774469 100644
--- a/src/models/Tracker.ts
+++ b/src/models/Tracker.ts
@@ -10,6 +10,7 @@ import TrackerStatus from './TrackerStatus';
  * @member {string} id a v4 uuid
  * @member {string} beginDate when the completions start (can be in the past or the future)
  * @member {string?} dateHidden when not undefined, specify which day the tracker is ignored. The next day, it's automatically set to "undefined".
+ * @member {Completion[]} defaultCompletions default completions submitted when validating the tracker
  * @member {number?} duration number of days the tracker is active since beginDate
  * @member {string} endDate when the Tracker is over
  * @member {TrackerEntry[]} entries TrackerEntries related to this Tracker
@@ -22,6 +23,7 @@ export default interface Tracker {
   readonly id: string;
   beginDate: string;
   dateHidden?: string;
+  defaultCompletions?: Completion[];
   duration?: number;
   endDate?: string;
   entries: TrackerEntry[];
diff --git a/src/store/trackers/FAKE_DATA.ts b/src/store/trackers/FAKE_DATA.ts
index c98669fb..518bae71 100644
--- a/src/store/trackers/FAKE_DATA.ts
+++ b/src/store/trackers/FAKE_DATA.ts
@@ -9,6 +9,16 @@ export const testTracker1Id = '123e4567-e89b-12d3-a456-426614174000';
 export const testTracker1: Tracker = {
   id: testTracker1Id,
   beginDate: subDays(new Date(), 3).toString(),
+  defaultCompletions: [
+    {
+      quantity: 10,
+      unit: 'push-ups'
+    },
+    {
+      quantity: 15,
+      unit: 'squats'
+    }
+  ],
   duration: 13,
   name: 'Musculation',
   remainingDays: 10,
@@ -46,6 +56,12 @@ export const testTracker3Id = '656e4567-e89b-12k3-b456-427614174000';
 export const testTracker3: Tracker = {
   id: testTracker2Id,
   beginDate: new Date().toString(),
+  defaultCompletions: [
+    {
+      quantity: 0.5,
+      unit: 'L of water'
+    }
+  ],
   entries: [],
   name: 'Drink',
   requiredCompletions: [
diff --git a/src/utils/isATracker.spec.ts b/src/utils/isATracker.spec.ts
index 1a911448..51c5bc08 100644
--- a/src/utils/isATracker.spec.ts
+++ b/src/utils/isATracker.spec.ts
@@ -5,6 +5,7 @@ describe('isATracker helper', () => {
   const basicTracker = {
     id: '1234-5678',
     beginDate: 'Thu Mar 17 2022 12:50:05 GMT+0100 (Central European Standard Time)',
+    defaultCompletions: [],
     entries: [],
     name: 'A basic tracker',
     requiredCompletions: [],
diff --git a/src/utils/isATracker.ts b/src/utils/isATracker.ts
index a52c5f40..10f2d169 100644
--- a/src/utils/isATracker.ts
+++ b/src/utils/isATracker.ts
@@ -26,6 +26,7 @@ const isATracker = (tracker: any): NotATrackerResponse => {
     { key: 'id', types: ['string'] },
     { key: 'beginDate', types: ['string'] },
     { key: 'dateHidden', types: ['string', 'undefined'] },
+    { key: 'defaultCompletions', types: ['array'] },
     { key: 'duration', types: ['number', 'undefined'] },
     { key: 'endDate', types: ['string', 'undefined'] },
     { key: 'entries', types: ['array'] },