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BOSTON MARATHON 2023

Stephanie Cohen

Bib: 9230•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 23%
Gender (Female)
#0 / 11423
Top 6%
Division (F18-39)
#0 / 4884
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:36
Rank: #5959
Start → 5K
21:36 | 6:57/mi
10K· 6.21 mi
42:54
Rank: #5860 (+99)
5K → 10K
21:18 | 6:51/mi
15K· 9.32 mi
1:04:31
Rank: #6020 (-160)
10K → 15K
21:37 | 6:57/mi
20K· 12.43 mi
1:26:23
Rank: #6057 (-37)
15K → 20K
21:52 | 7:02/mi
Half· 13.11 mi
1:31:10
Rank: #6083 (-26)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:48:57
Rank: #6305 (-222)
Half → 25K
17:47 | 7:20/mi
30K· 18.64 mi
2:12:26
Rank: #6435 (-130)
25K → 30K
23:29 | 7:34/mi
20M
2:22:41
Rank: #6433 (+2)
30K → 20M
10:15 | 7:33/mi
21M
2:30:49
Rank: #6469 (-36)
20M → 21M
8:08 | 8:08/mi
35K· 21.75 mi
2:36:11
Rank: #6437 (+32)
21M → 35K
5:22 | 7:10/mi
23M
2:45:40
Rank: #6424 (+13)
35K → 23M
9:29 | 7:34/mi
24M
2:52:46
Rank: #6315 (+109)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:58:50
Rank: #6207 (+108)
24M → 40K
6:04 | 7:06/mi
25.2M
3:01:34
Rank: #6184 (+23)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:08:40
Rank: #6104 (+80)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:10
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:37:30
Pace7:26 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:0521:366:5721:36
6:57
-
10K
6.21 mi11:08:2342:546:5421:18
6:51
-0:06
15K
9.32 mi11:30:001:04:316:5521:37
6:57
+0:06
20K
12.43 mi11:51:521:26:236:5721:52
7:02
+0:05
Half
13.11 mi11:56:391:31:106:574:47
7:01
-0:01
25K
15.53 mi12:14:261:48:577:0117:47
7:20
+0:19
30K
18.64 mi12:37:552:12:267:0623:29
7:34
+0:14
20M
20.00 mi12:48:102:22:417:0810:15
7:33
-0:01
21M
21.00 mi12:56:182:30:497:118:08
8:08
+0:35
35K
21.75 mi13:01:402:36:117:115:22
7:10
-0:58
23M
23.00 mi13:11:092:45:407:129:29
7:34
+0:24
24M
24.00 mi13:18:152:52:467:127:06
7:06
-0:28
40K
24.85 mi13:24:192:58:507:126:04
7:06
0:00
25.2M
25.20 mi13:27:033:01:347:122:44
7:56
+0:50
Finish
26.22 mi13:34:093:08:407:127:06
6:58
-0:58

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

6:51 /mi

Average Pace

7:12 /mi

Slowest Pace

8:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:35

71% of race

Time at Steady Pace

45:57

24% of race

Time at Slower Pace

8:08

4% of race

Average Pace: 7:12 /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 mi10:47:0521:366:5721:36
6:57
#5959
10K
6.21 mi11:08:2342:546:5421:18
6:51
#5860
15K
9.32 mi11:30:001:04:316:5521:37
6:57
#6020
20K
12.43 mi11:51:521:26:236:5721:52
7:02
#6057
Half
13.11 mi11:56:391:31:106:574:47
7:01
#6083
25K
15.53 mi12:14:261:48:577:0117:47
7:20
#6305
30K
18.64 mi12:37:552:12:267:0623:29
7:34
#6435
20M
20.00 mi12:48:102:22:417:0810:15
7:33
#6433
21M
21.00 mi12:56:182:30:497:118:08
8:08
#6469
35K
21.75 mi13:01:402:36:117:115:22
7:10
#6437
23M
23.00 mi13:11:092:45:407:129:29
7:34
#6424
24M
24.00 mi13:18:152:52:467:127:06
7:06
#6315
40K
24.85 mi13:24:192:58:507:126:04
7:06
#6207
25.2M
25.20 mi13:27:033:01:347:122:44
7:56
#6184
Finish
26.22 mi13:34:093:08:407:127:06
6:58
#6104
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi59594974976316(Top 24%)602(Top 5%)602(Top 12%)
10K6.21 mi3.10 mi5860+99482+15482+155815(Top 22%)496(Top 4%)496(Top 10%)
15K9.32 mi3.11 mi6020-160518-36518-366316(Top 24%)602(Top 5%)602(Top 12%)
20K12.43 mi3.11 mi6057-37529-11529-116228(Top 23%)580(Top 5%)580(Top 12%)
Half13.11 mi0.68 mi6083-26533-4533-46653(Top 25%)665(Top 6%)665(Top 14%)
25K15.53 mi2.42 mi6305-222589-56589-567512(Top 28%)1010(Top 9%)1010(Top 21%)
30K18.64 mi3.11 mi6435-130632-43632-437642(Top 29%)1158(Top 10%)1158(Top 24%)
20M20.00 mi1.36 mi6433+2646-14646-147093(Top 27%)1043(Top 9%)1043(Top 21%)
21M21.00 mi1.00 mi6469-36673-27673-278202(Top 31%)1598(Top 14%)1598(Top 33%)
35K21.75 mi0.75 mi6437+32668+5668+56397(Top 24%)876(Top 8%)876(Top 18%)
23M23.00 mi1.25 mi6424+13678-10678-106922(Top 26%)1134(Top 10%)1134(Top 23%)
24M24.00 mi1.00 mi6315+109660+18660+185223(Top 20%)632(Top 6%)632(Top 13%)
40K24.85 mi0.85 mi6207+108643+17643+174388(Top 16%)492(Top 4%)492(Top 10%)
25.2M25.20 mi0.35 mi6184+23644-1644-16136(Top 23%)1086(Top 10%)1086(Top 22%)
Finish26.22 mi1.02 mi6104+80641+3641+35040(Top 19%)738(Top 6%)738(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6316

Females

602

F18-39

602

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5815

Females

496

F18-39

496

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6316

Females

602

F18-39

602

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6228

Females

580

F18-39

580

20K→Half

12.4 - 13.1 mi

Top 25%
×2stories
+19ft-37ft

Overall

6653

Females

665

F18-39

665

Half→25K

13.1 - 15.5 mi

Top 28%
×4stories
+66ft-88ft

Overall

7512

Females

1010

F18-39

1010

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7642

Females

1158

F18-39

1158

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7093

Females

1043

F18-39

1043

20M→21M

20.0 - 21.0 mi

Top 31%
×8stories
+106ft-24ft

Overall

8202

Females

1598

F18-39

1598

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6397

Females

876

F18-39

876

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6922

Females

1134

F18-39

1134

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5223

Females

632

F18-39

632

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4388

Females

492

F18-39

492

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6136

Females

1086

F18-39

1086

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5040

Females

738

F18-39

738

Passing Analysis

Category:
Athletes Passed
1122
Passed By
1267
Net Change
-145
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5959
5K → 10K251152+99#5959#5860
10K → 15K61221-160#5860#6020
15K → 20K91128-37#6020#6057
20K → Half531-26#6057#6083
Half → 25K36258-222#6083#6305
25K → 30K82212-130#6305#6435
30K → 20M5957+2#6435#6433
20M → 21M5086-36#6433#6469
21M → 35K5119+32#6469#6437
35K → 23M7259+13#6437#6424
23M → 24M12112+109#6424#6315
24M → 40K1135+108#6315#6207
40K → 25.2M3310+23#6207#6184
25.2M → Finish9717+80#6184#6104
TOTALS11221267-145
📊

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