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BOSTON MARATHON 2023

Sarah Belouchi

Bib: 6806•F

QC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Female)
#0 / 11423
Top 3%
Division (F18-39)
#0 / 4884
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:31
Rank: #2898
Start → 5K
20:31 | 6:36/mi
10K· 6.21 mi
41:00
Rank: #3160 (-262)
5K → 10K
20:29 | 6:36/mi
15K· 9.32 mi
1:01:34
Rank: #3241 (-81)
10K → 15K
20:34 | 6:37/mi
20K· 12.43 mi
1:22:34
Rank: #3411 (-170)
15K → 20K
21:00 | 6:46/mi
Half· 13.11 mi
1:27:07
Rank: #3436 (-25)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:43:40
Rank: #3545 (-109)
Half → 25K
16:33 | 6:50/mi
30K· 18.64 mi
2:05:32
Rank: #3728 (-183)
25K → 30K
21:52 | 7:02/mi
20M
2:15:21
Rank: #3853 (-125)
30K → 20M
9:49 | 7:13/mi
21M
2:23:04
Rank: #3988 (-135)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:28:18
Rank: #4045 (-57)
21M → 35K
5:14 | 7:00/mi
23M
2:37:24
Rank: #4149 (-104)
35K → 23M
9:06 | 7:16/mi
24M
2:44:35
Rank: #4260 (-111)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
2:50:46
Rank: #4274 (-14)
24M → 40K
6:11 | 7:14/mi
25.2M
2:53:29
Rank: #4296 (-22)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:00:50
Rank: #4382 (-86)
25.2M → Finish
7:21 | 7:13/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:07
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:33:43
Pace7:09 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:4020:316:3620:31
6:36
-
10K
6.21 mi10:44:0941:006:3620:29
6:36
0:00
15K
9.32 mi11:04:431:01:346:3620:34
6:37
+0:01
20K
12.43 mi11:25:431:22:346:3921:00
6:46
+0:09
Half
13.11 mi11:30:161:27:076:394:33
6:40
-0:06
25K
15.53 mi11:46:491:43:406:4016:33
6:50
+0:10
30K
18.64 mi12:08:412:05:326:4421:52
7:02
+0:12
20M
20.00 mi12:18:302:15:216:469:49
7:13
+0:11
21M
21.00 mi12:26:132:23:046:497:43
7:43
+0:30
35K
21.75 mi12:31:272:28:186:495:14
7:00
-0:43
23M
23.00 mi12:40:332:37:246:519:06
7:16
+0:16
24M
24.00 mi12:47:442:44:356:517:11
7:11
-0:05
40K
24.85 mi12:53:552:50:466:526:11
7:14
+0:03
25.2M
25.20 mi12:56:382:53:296:532:43
7:53
+0:39
Finish
26.22 mi13:03:593:00:506:547:21
7:13
-0:40

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:36 /mi

Average Pace

6:54 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:18

89% of race

Time at Steady Pace

16:49

9% of race

Time at Slower Pace

2:43

2% of race

Average Pace: 6:54 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:23:4020:316:3620:31
6:36
#2898
10K
6.21 mi10:44:0941:006:3620:29
6:36
#3160
15K
9.32 mi11:04:431:01:346:3620:34
6:37
#3241
20K
12.43 mi11:25:431:22:346:3921:00
6:46
#3411
Half
13.11 mi11:30:161:27:076:394:33
6:40
#3436
25K
15.53 mi11:46:491:43:406:4016:33
6:50
#3545
30K
18.64 mi12:08:412:05:326:4421:52
7:02
#3728
20M
20.00 mi12:18:302:15:216:469:49
7:13
#3853
21M
21.00 mi12:26:132:23:046:497:43
7:43
#3988
35K
21.75 mi12:31:272:28:186:495:14
7:00
#4045
23M
23.00 mi12:40:332:37:246:519:06
7:16
#4149
24M
24.00 mi12:47:442:44:356:517:11
7:11
#4260
40K
24.85 mi12:53:552:50:466:526:11
7:14
#4274
25.2M
25.20 mi12:56:382:53:296:532:43
7:53
#4296
Finish
26.22 mi13:03:593:00:506:547:21
7:13
#4382
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi28981391393471(Top 13%)180(Top 2%)180(Top 4%)
10K6.21 mi3.10 mi3160-262157-18157-183467(Top 13%)180(Top 2%)180(Top 4%)
15K9.32 mi3.11 mi3241-81158-1158-13471(Top 13%)180(Top 2%)180(Top 4%)
20K12.43 mi3.11 mi3411-170172-14172-144095(Top 15%)252(Top 2%)252(Top 5%)
Half13.11 mi0.68 mi3436-25175-3175-34145(Top 16%)261(Top 2%)261(Top 5%)
25K15.53 mi2.42 mi3545-109182-7182-74401(Top 17%)297(Top 3%)297(Top 6%)
30K18.64 mi3.11 mi3728-183203-21203-214607(Top 17%)340(Top 3%)340(Top 7%)
20M20.00 mi1.36 mi3853-125220-17220-175251(Top 20%)505(Top 4%)505(Top 10%)
21M21.00 mi1.00 mi3988-135239-19239-195738(Top 22%)727(Top 6%)727(Top 15%)
35K21.75 mi0.75 mi4045-57246-7246-75342(Top 20%)568(Top 5%)568(Top 12%)
23M23.00 mi1.25 mi4149-104261-15261-155163(Top 19%)572(Top 5%)572(Top 12%)
24M24.00 mi1.00 mi4260-111272-11272-115669(Top 21%)765(Top 7%)765(Top 16%)
40K24.85 mi0.85 mi4274-14278-6278-65075(Top 19%)668(Top 6%)668(Top 14%)
25.2M25.20 mi0.35 mi4296-22283-5283-55849(Top 22%)980(Top 9%)980(Top 20%)
Finish26.22 mi1.02 mi4382-86292-9292-96532(Top 25%)1243(Top 11%)1243(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3471

Females

180

F18-39

180

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3467

Females

180

F18-39

180

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3471

Females

180

F18-39

180

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

4095

Females

252

F18-39

252

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4145

Females

261

F18-39

261

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4401

Females

297

F18-39

297

25K→30K

15.5 - 18.6 mi

Top 17%
×9stories
+181ft-148ft

Overall

4607

Females

340

F18-39

340

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5251

Females

505

F18-39

505

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5738

Females

727

F18-39

727

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5342

Females

568

F18-39

568

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5163

Females

572

F18-39

572

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5669

Females

765

F18-39

765

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5075

Females

668

F18-39

668

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5849

Females

980

F18-39

980

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6532

Females

1243

F18-39

1243

Passing Analysis

Category:
Athletes Passed
495
Passed By
1979
Net Change
-1484
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2898
5K → 10K66328-262#2898#3160
10K → 15K60141-81#3160#3241
15K → 20K43213-170#3241#3411
20K → Half631-25#3411#3436
Half → 25K46155-109#3436#3545
25K → 30K50233-183#3545#3728
30K → 20M29154-125#3728#3853
20M → 21M34169-135#3853#3988
21M → 35K2178-57#3988#4045
35K → 23M34138-104#4045#4149
23M → 24M25136-111#4149#4260
24M → 40K5064-14#4260#4274
40K → 25.2M1638-22#4274#4296
25.2M → Finish15101-86#4296#4382
TOTALS4951979-1484
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing