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BOSTON MARATHON 2023

Madeline Cohen-Shrage

Bib: 27394•F

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:41/mi
33:13
↑ 97↓ 3451.5%
10K· 6.21 mi
10:25/mi
1:05:36
↑ 79↓ 1380.4%
15K· 9.32 mi
10:08/mi
1:37:06
↑ 67↓ 78
20K· 12.43 mi
9:28/mi
2:06:32
↑ 106↓ 860.1%
Half· 13.11 mi
9:18/mi
2:12:53
↑ 19↓ 370.5%
25K· 15.53 mi
9:32/mi
2:35:59
↑ 66↓ 880.2%
30K· 18.64 mi
10:02/mi
3:07:09
↑ 181↓ 1480.2%
20M
10:31/mi
3:21:27
↑ 64↓ 500.2%
21M
10:31/mi
3:31:58
↑ 106↓ 241.6%
35K· 21.75 mi
9:57/mi
3:39:25
↑ 17↓ 861.7%
23M
10:20/mi
3:52:21
↑ 23↓ 630.6%
24M
10:17/mi
4:02:38
↓ 821.3%
40K· 24.85 mi
10:19/mi
4:11:27
↓ 200.3%
25.2M
11:27/mi
4:15:24
↑ 13↓ 160.2%
Finish· 26.22 mi
10:11/mi
4:25:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:12:53
Pace10:08 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:12:54
Pace10:08 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1733:1310:4133:13
10:41
-
10K
6.21 mi12:23:401:05:3610:3332:23
10:25
-0:16
15K
9.32 mi12:55:101:37:0610:2531:30
10:08
-0:17
20K
12.43 mi13:24:362:06:3210:1129:26
9:28
-0:40
Half
13.11 mi13:30:572:12:5310:086:21
9:18
-0:10
25K
15.53 mi13:54:032:35:5910:0223:06
9:32
+0:14
30K
18.64 mi14:25:133:07:0910:0231:10
10:02
+0:30
20M
20.00 mi14:39:313:21:2710:0414:18
10:31
+0:29
21M
21.00 mi14:50:023:31:5810:0610:31
10:31
0:00
35K
21.75 mi14:57:293:39:2510:057:27
9:57
-0:34
23M
23.00 mi15:10:253:52:2110:0612:56
10:20
+0:23
24M
24.00 mi15:20:424:02:3810:0710:17
10:17
-0:03
40K
24.85 mi15:29:314:11:2710:078:49
10:19
+0:02
25.2M
25.20 mi15:33:284:15:2410:083:57
11:27
+1:08
Finish
26.22 mi15:43:514:25:4710:0910:23
10:11
-1:16

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

9:18 /mi

Average Pace

10:09 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:20

25% of race

Time at Steady Pace

2:42:17

61% of race

Time at Slower Pace

37:10

14% of race

Average Pace: 10:08 /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 mi11:51:1733:1310:4133:13
10:41
#25164
10K
6.21 mi12:23:401:05:3610:3332:23
10:25
#24818
15K
9.32 mi12:55:101:37:0610:2531:30
10:08
#24471
20K
12.43 mi13:24:362:06:3210:1129:26
9:28
#23787
Half
13.11 mi13:30:572:12:5310:086:21
9:18
#23695
25K
15.53 mi13:54:032:35:5910:0223:06
9:32
#23298
30K
18.64 mi14:25:133:07:0910:0231:10
10:02
#22868
20M
20.00 mi14:39:313:21:2710:0414:18
10:31
#22778
21M
21.00 mi14:50:023:31:5810:0610:31
10:31
#22651
35K
21.75 mi14:57:293:39:2510:057:27
9:57
#22577
23M
23.00 mi15:10:253:52:2110:0612:56
10:20
#22490
24M
24.00 mi15:20:424:02:3810:0710:17
10:17
#22447
40K
24.85 mi15:29:314:11:2710:078:49
10:19
#22387
25.2M
25.20 mi15:33:284:15:2410:083:57
11:27
#22375
Finish
26.22 mi15:43:514:25:4710:0910:23
10:11
#22370
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25164105231052323766(Top 89%)9760(Top 85%)9760(Top 200%)
10K6.21 mi3.10 mi24818+34610329+19410329+19424536(Top 92%)10185(Top 89%)10185(Top 209%)
15K9.32 mi3.11 mi24471+34710147+18210147+18223766(Top 89%)9760(Top 85%)9760(Top 200%)
20K12.43 mi3.11 mi23787+6849771+3769771+37621482(Top 81%)8517(Top 75%)8517(Top 174%)
Half13.11 mi0.68 mi23695+929721+509721+5021581(Top 81%)8567(Top 75%)8567(Top 175%)
25K15.53 mi2.42 mi23298+3979510+2119510+21120936(Top 79%)8237(Top 72%)8237(Top 169%)
30K18.64 mi3.11 mi22868+4309311+1999311+19921126(Top 79%)8420(Top 74%)8420(Top 172%)
20M20.00 mi1.36 mi22778+909276+359276+3521771(Top 82%)8859(Top 78%)8859(Top 181%)
21M21.00 mi1.00 mi22651+1279226+509226+5019677(Top 74%)7757(Top 68%)7757(Top 159%)
35K21.75 mi0.75 mi22577+749187+399187+3921177(Top 80%)8591(Top 75%)8591(Top 176%)
23M23.00 mi1.25 mi22490+879146+419146+4120917(Top 79%)8477(Top 74%)8477(Top 174%)
24M24.00 mi1.00 mi22447+439133+139133+1321534(Top 81%)8866(Top 78%)8866(Top 182%)
40K24.85 mi0.85 mi22387+609109+249109+2420791(Top 78%)8488(Top 74%)8488(Top 174%)
25.2M25.20 mi0.35 mi22375+129105+49105+421493(Top 81%)8859(Top 78%)8859(Top 181%)
Finish26.22 mi1.02 mi22370+59109-49109-422277(Top 84%)9268(Top 81%)9268(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23766

Females

9760

F18-39

9760

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

24536

Females

10185

F18-39

10185

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23766

Females

9760

F18-39

9760

15K→20K

9.3 - 12.4 mi

Top 81%
×5story building
+106ft-86ft

Overall

21482

Females

8517

F18-39

8517

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21581

Females

8567

F18-39

8567

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

20936

Females

8237

F18-39

8237

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

21126

Females

8420

F18-39

8420

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

21771

Females

8859

F18-39

8859

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19677

Females

7757

F18-39

7757

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21177

Females

8591

F18-39

8591

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20917

Females

8477

F18-39

8477

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

21534

Females

8866

F18-39

8866

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20791

Females

8488

F18-39

8488

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21493

Females

8859

F18-39

8859

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

22277

Females

9268

F18-39

9268

Passing Analysis

Category:
Athletes Passed
2966
Passed By
172
Net Change
+2794
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25164
5K → 10K40256+346#25164#24818
10K → 15K35912+347#24818#24471
15K → 20K6851+684#24471#23787
20K → Half920+92#23787#23695
Half → 25K3970+397#23695#23298
25K → 30K4355+430#23298#22868
30K → 20M10818+90#22868#22778
20M → 21M1325+127#22778#22651
21M → 35K828+74#22651#22577
35K → 23M10215+87#22577#22490
23M → 24M5613+43#22490#22447
24M → 40K699+60#22447#22387
40K → 25.2M2311+12#22387#22375
25.2M → Finish2419+5#22375#22370
TOTALS2966172+2794
📊

Passing Visuals

Category:
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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